Appendix B: New Mexico State Highway And Transportation Department
Special Provisions For In-Situ Cold Recycling With Hot Hydrated Lime Slurry
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NH-285-2 (17) 78
May 6, 1996
All provisions of the New Mexico State Highway and Transportation Department's Standard Specifications for Highway and Bridge Construction shall apply in addition to the following:
305.11. This work shall consist of pulverizing the existing surfacing to the specified width and depth, mixing an emulsified binder agent, hot hydrated lime slurry, and water if required, with the pulverized surfacing, spreading and compacting said mixture to the specified width and thickness, and sealing of the compacted surface if required. All work shall be as shown on the plans and as provided herein unless otherwise directed by the Project Manager.
305.21. The emulsified binder agent shall be Polymerized High Float Emulsion of the type shown on the plans with the option to change one grade up or down at a change in unit price based on a difference in invoice prices for the different grades of emulsion. Changes in grade of binder agent shall be made only with the concurrence of the Project Manager. The Polymerized High Float Emulsion shall meet the requirements of Section 402 - Bituminous Materials, Hydrated Lime, & Liquid Anti-Stripping Agents.
305.22. The cold recycled material shall meet the following gradation requirements:
|Sieve Size||Percent Passing|
305.23. The sealing emulsion shall be diluted with High Float Emulsion, CSS-1h or other approved equal.
305.24. The lime used for the production of the hot hydrated lime slurry shall be a high calcium pebble quicklime meeting the requirements of ASTM C 977.
305.25. The water used for the production of hot hydrated lime slurry shall be clear and free of deleterious amounts of acid, oil, alkali, organic matter, salt, sugar, or other detrimental material. Water meeting the requirements of Subsection 510.25 Water, is acceptable.
305.26. The hot hydrated lime slurry shall have a minimum dry solids content of 35 percent by weight and shall consist of a uniform, pumpable suspension of solids in water.
305.3. Construction Requirements
305.31. General. The existing surfacing shall be cold recycled in a manner that does not disturb the underlying material in the existing roadway.
Prior to initiating recycling operations or other inherent work, the Contractor shall clear, grub, and remove all vegetation and debris within the width of pavement to be recycled. Disposal of said vegetation and debris shall be as directed by the Project Manager.
The Contractor may add water to the pulverized material for the purpose of cooling the cutting teeth on the mill or pulverizing equipment or to facilitate uniform mixing with the emulsified binder agent. Water may be added prior to or concurrently with the emulsified binder agent. A means shall be provided for accurately metering and registering the rate of flow of water into the pulverized material.
When the typical section that is to be recycled is situated on a super elevated or sloped section, the initial pass of the milling equipment shall begin at the lowest portion of the section and proceed in succession towards the higher end of the slope.
Fillets of fine, pulverized material which form adjacent to a vertical face shall be removed prior to spreading the recycled mix, except that such fillets adjacent to existing pavement which will be removed by overlapping during a subsequent milling operation need not be removed.
If segregation occurs either in the windrow or behind the paver, the Project Manager may require the Contractor to make changes in the equipment or operations. These changes may include, but shall not be limited to, the following:
- Reducing the forward speed of the milling operation.
- Increasing the amount of material going through the crusher.
- Adjusting the crusher to produce more fines.
- Adjusting the height of free fall of material from the mixing unit.
- Adjusting the amount of water in the mixture.
The Contractor may be required to make other changes in his equipment or operations, as necessary to obtain a satisfactory end-product.
When a paving fabric is encountered during the cold recycled in-situ operation, the Contractor shall make the necessary adjustments in the equipment or operations so that at least 90 percent of the shredded fabric in the recycled is five square inches or less in size. Additionally, no fabric piece shall have any dimension exceeding a length of four inches. These changes may include but not be limited to adjusting the milling rate, adding or removing screens, etc, in order to obtain a specification end product. The Contractor shall be required to waste material containing oversized pieces of paving fabric as directed by the Project Manager. These changes will be made at not additional cost to the Department.
The recycled bituminous base shall be spread in one continuous pass, without segregation, to the typical section shown on the plans.
305.311. Surface Tolerance. The final surface of recycled bituminous base shall not deviate in excess of ½ inch from the testing edge with a 10-foot straightedge resting on any two points. all deviations from this tolerance shall be corrected at no additional cost to the Department.
305.32. Temperature & Weather Limitations. Recycling operations shall not be performed when the atmospheric temperature is below 60°F or when the chill factor is below 35°F or when the weather is foggy or rainy or when weather conditions are such that in the judgement of the Project Manager, proper mixing, spreading and compacting of the recycled material cannot be accomplished. The chill factor shall be as defined in Subsection 401.341 Temperature & Weather Limitations.
305.33. Binder Application. When commencing recycling operations, the emulsified binder agent shall be applied to the pulverized material at the rate determined by the Department based on samples obtained by the Contractor for the mix design. The exact application rate of the emulsified binder agent will be determined and varied by the Project Manager as required by existing pavement conditions. An allowable tolerance of plus or minus 0.2 percent of the initial design rate or of the rate determined by the Project Manager of application shall be maintained at all times.
305.34. Lime Slurry Addition. The quicklime shall be slaked with the required amount of water and uniformly incorporated into the pulverized surfacing at a rate that will result in 1.5% hydrated lime by dry weight of pulverized surfacing. The amount of lime slurry being added shall be controlled by the continuous weighing of the pulverized surfacing.
305.35. Density & Rolling Requirements. The Contractor shall establish a rolling pattern such that a minimum density of 96 percent of a laboratory briquette, prepared in accordance with Department molding and testing procedures, is obtained. The Project Manager may require a re-demonstration of rolling capabilities when a change in the recycled materials is observed, whenever a change in rolling equipment is made, or if densities are not being obtained with the rolling pattern being used.
Initial rolling shall normally be performed with a 30 ton pneumatic roller and continued until no displacement is discerned or until the pneumatic rollers have walked out. If necessary, in order to initially seat the mixture, one or two passes with a small pneumatic roller may be made prior to application of the 30 ton roller. Final rolling to eliminate pneumatic tire marks and achieve density shall be done by steel wheel roller(s), either in static or vibratory mode, as required, to achieve required density.
Rolling shall be performed in accordance with Subsection 401.35 Compaction.
Rollers shall not be started or stopped on uncompacted recycled material. Rolling shall be established so that starting and stopping will be on previously compacted recycled material or on existing PMBP.
Rolling which results in cracking, movement, or other types of pavement distress shall be discontinued until such time as the problem can be resolved. Discontinuation and commencement of rolling operations shall be at the sole discretion of the Project Manager.
305.36. Finishing Operations. After the recycled material has been spread and compacted, vehicles, including Contractor's equipment, shall not be permitted on the completed recycled bituminous base for at least two hours. The area may then be opened to all traffic and shall be allowed to cure such that the free moisture in the recycled material is reduced to one percent or less above the natural moisture of the material by total weight of mix, before placing the surfacing.
The surface of the recycled pavement shall be maintained in a condition suitable for the safe accommodation of traffic. All loose aggregate that develops on the surface of the recycled pavement shall be removed by power brooming. After the free moisture content of the recycled material is one percent or less above the natural moisture of the material, the Project Manager may require that the surface be sealed with emulsion at an approximate rate of 0.05 to 0.10 gallon per square yard in order to control surface raveling.
All unacceptable recycled bituminous base shall be repaired by the Contractor, as directed by the Project Manager prior to placing a subsequent surfacing course. Said repair(s) shall be made at no additional cost to the Department.
305.371. Cold In-Situ Machinery. The Contractor shall furnish a self-propelled machine capable of pulverizing in-situ bituminous materials to the depth shown on the plans in one pass. The machine shall have a minimum rotor cutting width of 12 feet, standard automatic depth controls and shall maintain a constant cutting depth. The machine shall also incorporate screening and crushing capabilities to reduce or remove oversize particles prior to mixing with emulsion. Oversize particles shall be reduced to size by crushing, however, the Contractor may, with concurrence of the Project Manager, waste up to a maximum of two percent oversize material prior to adding emulsion. This waste shall generally be limited to that material which is flattened out rather than broken down by the crusher.
The emulsified agent shall be applied through a mixing machine capable of mixing the pulverized material and the emulsified binder agent to a homogeneous mixture and placing the mixture in a windrow. The method of depositing the mixed material in a windrow shall be such that segregation does not occur.
A positive displacement pump, capable of accurately metering the required quantity of emulsified binder agent, into the pulverized material, shall be used. The pump shall be equipped with a positive interlock system which will permit addition of the emulsified binder agent only when the pulverized material is present in the mixing chamber and will automatically shut off when the material is not in the mixing chamber.
Each mixing machine shall be equipped with a meter capable of registering the rate of flow and total delivery of the emulsified binder agent introduced into the mixture. The meter shall be calibrated by the Contractor, in the presence of the Project Manager, before commencing recycling operations. Subsequent checks or calibrations of the meter shall be as directed by the Project Manager.
305.372. Lime Slurry Equipment. The lime slurry shall be produced at the job site using a batch type process. The equipment shall accurately proportion the quicklime and water; adequately mix the two to obtain proper slaking; and maintain a uniform, homogeneous slurry.
Transports used to convey the slurry to the roadway shall employ sufficient agitation to prevent settlement and maintain a uniform homogeneous mixture.
The lime slurry shall be added to the pulverized surfacing by a spray bar located at the cutting head on the milling machine. A metering device shall be used and it shall accurately measure the amount of slurry delivered to within plus or minus 10 percent by weight.
305.373. Pavers. Placing of the recycled bituminous base course shall be accomplished with a self-propelled bituminous paver meeting the requirement of Subsection 401.323 Pavers, except that heating of the screed will not be permitted. This equipment shall be capable of spreading the recycled bituminous base in one continuous pass, without segregation, to the typical section shown on the plans.
When a pick-up machine is used to feed the windrow into the paver hopper, the pick-up machine shall be capable of picking up the entire windrow down to the underlying materials.
305.374. Rollers. Rollers shall meet the requirements of Subsection 401.324 Compaction Equipment. The number, weight, and type of rollers shall be sufficient to obtain the required compaction while the mixture is in a workable condition except that one pneumatic roller shall be 30 ton minimum weight. All rollers shall be equipped with pads and a water system which prevents sticking of the recycled mixture to the roller wheels.
305.375. Brooms. The Contractor shall have on hand at all times a rotary power broom maintained in good working order and of a design suitable for removing aggregate that becomes dislodged from the surface of the recycled surface.
305.4. Method Of Measurement
305.41. In-situ cold recycling of existing surfacing will be measured by the square yard.
Polymer modified high float emulsion will be measured by the ton.
Sealing emulsion will be measured by the ton. Quicklime will be measured by the ton.
305.5. Basis Of Payment
305.51. In-situ cold recycling of existing surfacing will be paid for at the contract unit price per square yard.
Polymer modified high float emulsion will be paid for at the contract unit price per ton.
Sealing emulsion will be paid for at the contract unit price per ton.
Quicklime will be paid for at the contract unit price per ton. This price will be full compensation for the quicklime, and production of the hot lime slurry including all necessary equipment, labor, and water.
Payment will be made under:
|Pay Item||Pay Unit|
|In-Situ Cold Recycling of Existing Surfacing||Square Yard|
|Polymer Modified High Float Emulsion (Type)||Ton|
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Building Permits provide a building owner with an assurance that the structure will perform as intended and provide the occupants with an acceptable level of safety.
All construction of new buildings and most renovations in existing buildings require building permits.
The Alberta Building Code sets the minimum standards for buildings constructed in the province. These standards ensure the safety of the occupants, and provide an assurance that the building will perform as intended. Obtaining the necessary permits and calling for inspections may seem to be an inconvenience, but can save you from problems in the future. If someone falls from your deck that was built without the proper guardrail, you may encounter insurance problems if you do not have permits for the work done. Even if you had someone else perform the work, it is the building owner's responsibility to ensure the permits are in place and all required inspections are completed.
Our Safety Codes Officers can determine problem areas during the plan check stage, and corrections can be made easier on paper than in the field. The field inspectors often uncover problems, that if left uncorrected, can cost the homeowner a substantial amount later. For instance, an addition (including decks or sunrooms) built on improper foundations may settle or heave, damaging the house and creating leaks.
Building Permits are required for:
- Construction of a foundation to support a building or structure.
- Erection of a new building or structure more than 107 sq ft (10 sq m) in area.
- Demolish, relocate, repair, alter or additions made to an existing building or structure.
- Decks more than two (2) feet above grade.
- Sunroom additions, deck enclosures or roofs over existing decks.
- Swimming pools, exterior hot tubs or ponds greater than two (2) feet deep.
- Retaining walls greater than two (2) feet in height.
- Finishing basements - includes partial development or full development.
- Changing window sizes or adding new windows.
- Detached or Attached Garages, Carports or Enclosing existing Carports.
- Accessory buildings (sheds, gazebos or pergolas) greater than 107 sq ft (10 sq m).
- New Secondary Suite in an existing Single Family Dwelling or Duplex.
- An Event Tent, or group of tents, collectively more than 60 sq m in area or closer than 3.0 m to any structure or contain commercial cooking equipment.
- Freestanding Signs - signs over 20' (6.0 m) require engineered foundations.
- Solar Panels attached to Commercial or Residential Buildings and all Accessory Buildings.
- Painting or decorating if such work will not create an unsafe condition in or about the project.
- Driveways or parking pads.
- Fences, Planters, Sidewalks or freestanding exterior Fireplaces. Note: exterior fireplaces or fire pits require a Fire Pit permit - applications are available at any of the 3 fire stations in the City.
- Retaining walls (less than 2 feet high) and do not form part of a building foundation.
- Accessory buildings less than 107 sq ft (10 sq m) if they do not create a hazard. Note: placement of the accessory building must still comply with the current Land Use Bylaw.
- Window replacement, providing the window size and rough opening do not change.
- Re-siding or re-shingling a house providing no structural changes are made to the building.
- Replacement of kitchen cupboards - ensure proper clearances are maintained to stoves.
- Swimming pools or ponds less than two (2) feet deep.
- Tent structures located on a residential property for residential purposes or an event tent (or group of tents) that collectively cover less than 60 sq m and are more than 3.0 m from any other structure and does not contain commercial cooking equipment.
It may be necessary to obtain a Development Permit prior to applying for a Building Permit.
Please contact Planning & Development Services at 403.529.8374 for more information.


Thursday, December 6, 2018 5:42 pm
Mr Mustapha Shehuri, the Minister of State for Power, Works and Housing, on Thursday frowned at the slow pace of construction work on the Benin-Auchi-Okene express way.
Shehuri expressed his disappointment when he made an on-the-spot assessment of the 63.7-kilometre road to ascertain the level of work done so far by various contractors handling the road project.
Speaking at section two of the road awarded to MotherCat Plc, Shehuri said he was not happy with the pace of construction work.
”The pace of work here is too slow, the section that still needs your attention is more than the 43 per cent work you have done. Please improve on the work because you are not putting in your best.
”For the past six year, you have only done 13 kilometres out of the 26 kilometres awarded to your company; it is not encouraging.
”Please speed up the work for the good people of Edo, Kogi and Nigerians, especially as the Yuletide season is fast approaching, ” he said.
Shehuri said that all road projects were being funded through the SUKUK bond, adding that government was still looking for other sources to fund road construction in the country.
”Construction is capital intensive and the financial capacity is not there. We are looking at Private-Public Partnership (PPP) to be able to carry road construction throughout the country.
Explaining the rationale behind the delay, Mr Joubran Saadah, the Project Manager of MotherCat handling section two of the road between Okene and Auchi, said the major challenge delaying the project was funds.
“Another challenge that we have is that we do not have right of way in about 14 kilometres of the roads. We still need to relocate and pay compensation.
”The contract was awarded at the cost of N10.7 billion and only N3 billion was released. The level of work done so far is about 43 per cent and the project is expected to be completed in 2020.
”We have also received a letter from the Ministry directing us to rehabilitate failed portions of the existing road and we have started the rehabilitation work even though we have not been paid.”
“We will ensure that the roads are motorable before the Yuletide season.”
Mr Oke Owhe, the Federal Controller of Works in Edo, told the minister that the road was awarded in 2012 and construction work began in 2013.
He said the release of SUKUK funds in 2017 increased the level of construction work on the roads.
According to him, three contractors are currently handling the 63.7-kilometres Benin-Auchi-Okene road project.
They are MotherCat Plc handling section two (Auchi-Okene), Dantata handling section three (Auchi-Ehor) and RCC handling section one (Benin-Ehor).


Transmission Distribution & Retail
We are upgrading our Transmission, Distribution & Retail (TD&R) assets to improve reliability, reduce costs and expand our grid capacity.
From Mullet Bay Road to Ferry Reach Road.
Works started in June 2021.
Completion date July 2021.
Harrington Sound Road from Shark Hole Hill to Paynters Road.
Began May 2021.
Completion date September 2021. This section of road will be fully open for Cup Match week.
Harrington Sound Road between Harrington Sound Hill and Flatts.
Harrington Hundreds Road junction to be closed on July 17/18 for crossing.
This trench will not be closed up for Cup Match as alternate routes exist for traffic.
Began May 2021.
Completion date October 2021.
Store Hill, North Shore Road to Middle Road.
This trench will not proceed out onto Middle Road until after Cup Match.
Start 7 July 2021. Completion date July 2021.
Belmont to Camp Hill – trench progressing towards Khyber Pass junction, next joint-hole location is opposite Warwick Post Office.
Advised detour routes are South Shore Road and Harbour Road when available.
Began on March 2021
Completion November 2021. These works are in Warwick only.
Morgan’s Point to Evans Bay Road via Middle Road
This trench will not progress onto Middle Road prior to Cup Match.
Started May 2021.
Due to be completed Mid October 2021.
Thank you for your patience as we upgrade our underground transmission cables.
As part of the transmission upgrade project, BELCO is replacing 40% of its current underground transmission cables that are over 50 years old. Nearly 25% of our cables have served Bermuda for over 60 years! These cables and other transmission and distribution assets are well beyond their useful lifespans, causing a higher number of faults, system vulnerability and higher maintenance costs.
Getting our grid ready for large-scale renewables
At this point in time, the grid is limited in its capacity to support large-scale generation from renewable resources. Our old cables and network were designed for central generation; they were not designed to accommodate generation from sources distributed across the network. The transmission cables serve as the backbone of the grid; thus their replacement represents a critical step in moving Bermuda towards its energy future.
TD&R upgrade construction project
The new cables are being installed in multi-service duct banks that will eliminate the need to dig up the roads for cable replacement in the foreseeable future.
Working closely with Works & Engineering and other utilities, the construction phase has been designed to complement Government’s future water and sewage.
Transmission cable replacements
Critical distribution infrastructure reinforcement
(i.e. schools and cell tower)


Ready-mix concrete is fully mixed and prepared for use before being delivered to a work site. This concrete is typically preferred over on-site concrete because the mixture is more precise, more convenient, and reduces work site confusion. During the winter months, cold weather can affect ready-mix projects, and if the concrete provider is not prepared for them, they can become problems.
””Outdoor temperatures between 50 and 75 degrees Fahrenheit are ideal for pouring ready-mix concrete foundations. Very cold weather on the other hand, can make concrete jobs much more difficult and sometimes impossible to complete without compromising the quality of the work. Despite this, many of the problems associated with concrete work during cold weather can be overcome if the concrete provider is well aware of them.
- Slow Curing Time
When temperatures drop below 50 degrees, concrete sets very slowly. Below 40 degrees, hydration reaction basically stops, and the concrete doesn’t gain strength. Adding an accelerated admixture to modify the properties of the concrete mix will speed up the curing time. Water is used to create the concrete mixture. When all of the water that is used for the mix freezes, it expands, causing the concrete to crack. The key is doing what you can to make sure the concrete sets fast enough to prevent this, which is what an accelerator does. Also, switching to a special sealer that uses a faster solvent might help avoid problems and ensure that the surface sets properly.
- Decreased Flexibility During Casting
Casting concrete in very low temperatures requires certain precautions to be taken. Some suppliers of ready-mixed concrete are able to supply heated concrete, which can be delivered to the work site at temperatures above 50 degrees even in the coldest weather. Concrete pros add hot water to the mix to keep the concrete workable. Concrete should be covered with insulating material once cast, and the heat of hydration will help to maintain the temperature of the concrete after the setting process starts. Most producers will try to have the concrete be at least 65°F when it leaves the plant, which is generally good enough depending on air temperature and thickness of the concrete element.
- Pouring Ready-Mix Concrete on Frozen Ground, Snow or Ice
Frozen ground must settle after it thaws from the cold. This settling can crack the concrete if it was poured while the ground was frozen. Not only that, but crusting can occur when working with cold foundations—causing the top part of the concrete to set, but the concrete in contact with the ground to set more slowly and remain soft. Because of these issues, it is never recommended to pour concrete on frozen ground.
- Carbonation of Concrete
A building heated by temporary heaters without ventilation or with poor ventilation, including gas-powered equipment, can cause carbon dioxide levels in the air to rise. When the carbon dioxide from the air reacts with the calcium hydroxide in concrete to form calcium carbonate, the process of carbonation takes place and is essentially the reversal of calcination of lime. Carbonation leaves the concrete with a chalky carbonated surface and a center that is too soft to last. An easy way to avoid issues of carbonation is to use heaters that can vent their exhaust to the outside of the building.
Talk to Concrete Professionals
Ready-mix concrete doesn’t like the cold—but it is still possible to successfully complete your concrete project if proper preparations for the elements are made. With over 18 plants around the state, the professionals at Razorback Concrete are well prepared for the Arkansas winter months. They can answer any of your cold weather concrete questions and help make sure your project is completed successfully. For a free ready-mix concrete quote, contact a ready-mix concrete expert today.


TUSCALOOSA, Ala. — Kenneth M. Leonard, director of the U.S. Department of Transportation Intelligent Transportation Systems Joint Program Office, will discuss communication among vehicles, infrastructure and mobile computing in a seminar at The University of Alabama.
The USDOT is investing in connected vehicles because of their promise to save lives, as well as improve traffic flow, reduce environmental impacts, and make our communities safer and more livable.
Connected vehicles would mean a transportation system where cars could warn of a potential crash or icy roads ahead, advise of a traffic jam ahead or help find a parking space. In such a system, buses could alert passengers of their next connection, mapping software could indicate the greenest travel route and cell phones could communicate with traffic signals so disabled pedestrians can safely cross an intersection.
These developments get closer to reality through the U.S. Department of Transportation connected vehicle research. Connected vehicles combine leading-edge technologies such as GPS sensors, wireless internet, wireless sensors and dedicated short-range communications to enable high-speed, real-time communication among vehicles, roadside infrastructure and mobile devices.
Leonard is a member of the federal government’s Senior Executive Service. He has more 30 years of federal government and private sector leadership experience in the areas of transportation, energy, investment, defense, environment, regulatory affairs and information systems.
The University of Alabama, the state’s oldest and largest public institution of higher education, is a student-centered research university that draws the best and brightest to an academic community committed to providing a premier undergraduate and graduate education. UA is dedicated to achieving excellence in scholarship, collaboration and intellectual engagement; providing public outreach and service to the state of Alabama and the nation; and nurturing a campus environment that fosters collegiality, respect and inclusivity.


The South Hadley Public Library sits on a bluff above a dam on the Connecticut River on a redeveloped brownfield site, a former abandoned industrial site. The first floor of the two-story library provides children’s services, new book browsing and meeting rooms. The second floor houses adult collections. Reading rooms on both floors follow the curve of the river, providing dramatic views of the dam below. The sustainable design has been certified LEED Silver.


This set of Environment Management Quiz focuses on “Control Measures of Water Pollution”.
1. How agricultural management helps in the control of water pollution?
a) By giving an idea about the use of land management
b) By increase the water intake
c) By using poor soil which consumes less water
d) By encouraging farmers to use more chemicals
Explanation: Land use is one of the agricultural management which helps in the control of water pollution. It includes crop rotation systems and the proportion of the land area devoted to permanent crops relating to annual tillage crops.
2. How soil resistance can increase against erosion?
a) By maintaining the water inflow
b) By maintaining the physical structure of soil
c) By maintaining the environmental conditions
d) By increasing the manure given to the plants
Explanation: Increasing soil resistance against erosion can be achieved by maintain the physical structure of soils. Good farming practices allow for adequate inputs of organic fertilization by digging in crop residues.
3. Why ground water monitoring is important in control of water pollution?
a) To provide more quantity of water
b) To increase the chemical contains in the water
c) To provide good quality of water
d) To reduce the amount of water supplying from ground water
Explanation: Ground water monitoring techniques provide a better means of distinguishing the temporal process of ground water contamination and provide good quality of water for drinking and for other daily chores.
4. How can we reduce the effluent volume of water to maintain its pollution level?
a) Increase the upstream flow by low flow augmentation
b) Decrease the upstream flow by low flow augmentation
c) Increase the upstream flow by high flow augmentation
d) Decrease the upstream flow by high flow augmentation
Explanation: One of the measures to control water pollution is to reduce the effluent volume by increasing the upstream flow by low flow augmentation. This means releases from upstream reservoir storage from nearby water bodies.
5. In order to control the water pollution of pathogenic bacteria, viruses and parasites, how many categories are there?
Explanation: The three broad categories for control of pathogenic bacteria, viruses and parasites are, control at the initial source of the micro-organisms, control at the area of water use, and control of the product that is affected by contamination.
6. Redesign of synthetic detergents to reduce foaming can minimize water pollution in little quantity.
Explanation: Redesign of synthetic detergents to reduce foaming and downstream transport through increased biodegradation rate. This can control water pollution. Thus the chemicals released by detergents can also be reduced.
7. How are aquatic weeds used in controlling water pollution?
a) They use as a decorative substances
b) They use as biological filters
c) They use as chemicals
d) They used to upgrade wastewater treatment
Explanation: Aquatic weeds are used to upgrade wastewater treatment lagoons and treat chemical wastewaters. It can readily absorb, accumulate and concentrate heavy metals such as lead, mercury and cadmium.
8. What is the pH range of effluent after treatment?
a) Between 4.4 and 5.5
b) Between 4.8 and 6.1
c) Between 6.8 and 7.8
d) Between 7.8 and 8.3
Explanation: The pH of effluent after treatment has been found to be between 6.8 and 7.8, which is an ideal range of fresh water. As the metals are extracted from the effluents, it causes considerable cleaning of the effluent.
9. Why controlled use of water hyacinth is important in controlling of water pollution?
a) To decrease the BOD level
b) To increase the BOD level
c) To completely vanish the BOD level
d) To maintain the BOD level
Explanation: The controlled use of water hyacinth I conjunction with waste stabilization increases the BOD removal capacity of these systems. It also reduces the high total suspended solids normally associated with sewage lagoons.
10. When did water cess act come into force?
Explanation: Water cess act came into force in 1977. It is one of the important law which aims to reduce and prevent water pollution. Its effects have been limited in controlling water pollution. Strict implementation is necessary for effective prevention of water pollution.
11. Which of the following is not a way to minimize the disposal of toxic wastes into the water?
a) To create awareness about the pollution happening on water for people
b) To minimize the use of pesticides and chemicals into the agricultural fields
c) Recycle of plastic materials
d) Encouraging the disposals of electronic waste into the water bodies
Explanation: Out of the above four options encouraging the disposals of e-waste is not a way to minimize the disposal of toxic wastes into the water. The e-waste cause pollution to the water bodies so a proper treatment must be give before disposal.
12. Why the flowing water of the river cannot be cleaned easily by natural process?
a) Because a large number of external substances are discharged into the water
b) Because external climatic conditions are not favorable to clean the water
c) The following water is already cleaned before flowing itself
d) Because of lack of space to clean the water
Explanation: The flowing water of the river cannot be cleaned easily by a natural process since a large number of external substances are discharged into the water, the river water becomes polluted. These cause diseases to the people using river water.
13. Water that has been exposed to a substance other than water I called as_____________
a) Water purification
b) Water strength
c) Water contamination
d) Water desolation
Explanation: Water can be contaminated with natural elements and as well as from the materialistic things. All contaminated water is polluted, but all polluted water is contaminated with something. So a proper treatment for contaminated water can avoid the pollution of water.
14. Monitor used of motor oil can reduce water pollution.
Explanation: Many hazardous waste products that are used for cars, such as motor oil and gasoline are very dangerous. Motor oil contains potentially dangerous heavy metals such as lead and cadmium. So a proper monitor of this can avoid water pollution.
Sanfoundry Global Education & Learning Series – Energy & Environment Management.
To practice all areas of Environment Management for Quizzes, here is complete set of 1000+ Multiple Choice Questions and Answers.


Due to weather related issues, in some areas there may be delayed deliveries of your Monday issue of the NewsTribune.
If road conditions are severe enough, your delivery person may not be able to deliver your NewsTribune at all on Monday.
In this case, your Monday edition will be delivered with your Tuesday newspaper.
We ask you to be understanding for the safety of our carriers.
OTTAWA — Recent Illinois River flooding has caused an estimated $8.9 million in damage to public infrastructure and more than 500 buildings throughout La Salle County, said La Salle County Emergency Management Agency director Connie Brooks. Brooks told county board EMA committee members Thursday the county has not been declared a federal disaster area, but the damage the flood has caused is being noticed throughout the state. “This is unconfirmed, but La Salle County seems to be the worst based on my conversations with other officials in emergency management zones in the state,” Brooks said. Federal and state emergency management officials will be verifying the county’s damage assessment and conducting their own studies beginning tomorrow or next week. Afterwards, if the damage is deemed to be large enough, among other factors, a federal declaration could be assigned to La Salle County. If so, federal resources, both financial and in terms of personnel, will be allocated to affected areas. Meanwhile, the U.S. Army Corps of Engineers continues to assess damage to the lock and dam at Marseilles after it was struck by several river barges. Brooks asked residents affected by the flood to try to remain calm. “Understandably, people have run out of patience because they have lost so much,” Brooks said. “But this isn’t like a tornado. Assessing flood damage is a much longer process.”


Governor Seyi Makinde’s Achievements in Roads
Provide adequate transport infrastructure and services for uniform socio-economic development in the state by embarking on reconstruction and rehabilitation of the existing roads and improving rural roads.
The Oyo State Government has constructed and reconstructed/rehabilitated a total of 545.26km of roads across Oyo State. The major roads are:
- Construction of 76.7km Iseyin-Fapote-Ogbomoso Road (ongoing). The road connects Oke-Ogun and Ogbomoso Zones.
- Reconstruction of 45.3km Saki-Ogbooro-Igboho Road (ongoing). The road connects Saki West, Saki East and Oorelope Local Government Areas.
- Reconstruction of 37.41km Beere- Olorunsogo-Amuloko-Akanran-Dagbolu Road (ongoing).
- Reconstruction of 34.85km Oyo-Iseyin Road (ongoing). The road connects Oyo and Oke-Ogun Zones. It is also the main artery for accessing the Fasola Agribusiness Industrial Hub.
- Reconstruction of 21km Airport-Ajia-New Ife Express Road with a spur to Amuloko (ongoing).
- Dualisation of the 12.5km Challenge-Odo Ona Elewe-Apata Road (ongoing).
- Reconstruction of 12km Apete-Awotan-Akufo Road into a rigid pavement road (ongoing).
- Dualisation of 9.7km Saki Township Road (completed).
- Construction of 9.23km Omi Adio -Ido Road.
- Dualisation of 7.3km Agodi Gate-Old Ife-Adegbayi Junction with a spur to Alakia Airport, Ibadan (3.3km) (ongoing).
- Dualisation of the 7.2-kilometre Idi Ape-Basorun-Akobo-Odogbo Barracks Road (completed).
- Reconstruction of 5.2km Gedu-Oroki-Sabo-Asipa Road (completed).
- Construction of General Gas Flyover (ongoing).
- Reconstruction of the 15km BCJ-Railway-Gbekuba-NIHORT Junction, Ibadan (ongoing).
- Dualisation of the 3.2km Ibadan Airport Road, rehabilitation of adjoining roads along the airport axis and rehabilitation of spur roads around Iwo Road Interchange including the road from Oludare to Bishop Phillips (2 km) (ongoing).
- Dualisation of the 3.1km Olorunsogo Expressway, Ibadan (ongoing).
- Reconstruction of the Isaba-Ogundoyin Road (0.75km) and Lanlate Garage Junction Local Government-Eruwa Poly- Oke Ola Junction Road, Eruwa (1.9km) (ongoing).
Upgrading of rural feeder roads in all the 33 local government areas of the state.
The Oyo State Government, through Rural Access and Agricultural Marketing Project (RAAMP) had carried out various studies and survey on rural roads which had led to the digitization of 452.80km of rural roads for Spot Improvement, 687.60km of rural roads for routine maintenance and 187.25km rural roads for rehabilitation. The government made the counterpart funding of N350 million for RAAMP in July 2019 and is waiting for the disbursement of funds by the World Bank to commence the rehabilitations.
New roads to be built to enhance economic activities, promote rural-urban linkages and generally facilitate movement around the state.
In addition to the roads listed in No 5 above, in the past one year, Governor Seyi Makinde’s administration has executed the following road projects to facilitate movement around the state:
- Reconstruction of Adegbayi Junction to the bus terminal stations at Iwo Road interchange along the proposed Ibadan-Ife Expressway rehabilitation project.
- Reconstruction/rehabilitation of link roads to Ibadan/Lagos Expressway at General Gas and beside NNPC mega station, PDCOS Housing Estates, Akobo, Ibadan.
- The asphaltic construction/rehabilitation Of Lasisi Apapa Street, Off Queen Elizabeth Road, Agodi, Ibadan.
- Rehabilitation of Ecobank Bode Isalu-AHIS Road (5.5km).
Engage in private partnership to improve the road facilities.
Governor Seyi Makinde’s administration has been engaging with the private sector to improve road facilities. For example, the use of Alternative Project Funding Approach (APFA) to finance road projects.
- With Fax Consult Ltd for Idi Ape-Basorun-Akobo-Odogbo Barracks Road (7.2km) dualisation project.
- With Kopek Construction Ltd for the completion of outstanding construction works on the dualisation of Challenge-Odo Ona Elewe – Apata Road (12.5km) Section 1 and Section 2.
- With Peculiar Ultimate Concerns Ltd for the; (i) Dualisation of Saki Township along Oke-Ogun Poly Road (9.7km) (ii) Reconstruction of the Airport-Ajia-New Ife Express Road with spur to Amuloko, Ibadan (21km). (iii) Rehabilitation and total asphaltic overlay of Kolapo Ishola GRA Road Network (16.96km) (iv) General Gas Flyover.
- With CCECC Nig. Ltd. for the reconstruction of Saki-Ogbooro- Igboho Road (45.3km).
- With Ahmak Nig. Ltd. for the reconstruction of Gedu-Oroki-Sabo-Asipa Road (5.2km).
- With Still Earth Nig. Ltd. for the reconstruction/rehabilitation and sectional overlay of BCJ-Railway-Gbekuba-NIHORT Junction, Ibadan (4.15km).
- With Kopek Construction Ltd for the reconstruction of the Oyo-Iseyin Road (34.85km)
- With Brightlite Structures Ltd for the reconstruction of Isaba – Ogundoyin Road (0.75km) and Lanlate Garage Junction Local Government-Eruwa Poly- Oke Ola Junction Road, Eruwa (1.9km).
Provision of modern equipment to the Road Maintenance Agency.
Ibadan Urban Flood Management Project:
- 1-cell (4 x 2) metres culvert, Ajibode Road, NISER Area, Ibadan
- 1-cell (3.5 x 1.5) metres culvert, Odogbo Fatokun Area, Moniya, Ibadan
- 1-cell (3 x 2) metres culvert across Ibadan – Ife Expressway close to Iwo Road Interchange, Ibadan
- 1-cell (4 x 2) metres culvert along Apete – Awotan Road, Ibadan
- 2-cell (6 x 2) metres culvert, Jerusalem Area, Ojoo-Arulogun Road, Ibadan
- 8-cell (6 x 2.25) metres culvert, Oorelope Area, Oluyole Estate, Ibadan
- 4-cell (6 x 3) metres culvert, Ogbere-Tioya, along Olorunsogo-Amuloko-Akanran-Dagbolu Road, Ibadan
- 1-cell (4 x 3) metres culvert, Ogbere River linking the Seriki Adeyalo areas
- 1-cell (3.5 x 2) metres culvert at Mufu Laninhun, Ibadan-Lagos Expressway
- 2-cell (6 x 2.5) metres culvert at Onipepeye Axis, Ibadan-Lagos Expressway
- Channelization of Orogun River with 5-cell (6 x 2) metres culverts at UI-Ojoo Highway
- 3-cell (6 x 2) metres culvert at GOFAMINT Church, Orogun
- 2-cell (6 x 2.5) metres culvert at Akinwumi/Odewenma Street near Iwo Road Interchange
- 2-cell (6 x 2) metres culvert at Kajorepo Community across the Iwo Road-Ojoo Expressway
- 3-cell (5 x 2) metres culvert at Kajola Area, over Orogun River
- 2-cell (6 x 2) metres access culvert into Kajorepo community, off Ojoo-Iwo Road
- 2 foot bridges (25 x 2.3) metres across the Kudeti Stream at Labo, Oranyan area Ibadan
- 1-cell (8 x 2.5) metres culvert at Labo/Oranyan/Bere Road by Bovas Filling Station
- 2-cell (4 x 2) metres culvert at Army Barracks, off Ojoo Road
- 2-cell (4 x 2.5) metres culvert at Agodi River at Ladoke Akintola Street, New Bodija
- 2-cell (6 x 2.5) metres culvert at Oduduwa Street by BON Hotel, Old Bodija
- 2-cell (6x 2.5) metres culvert at Francis Okediji Street, Old Bodija
- 2-cell (6 x 2.5) metres culvert across Agodi River on Layi Osunkunle Street, by Davis Hotel, Old Bodija
- Construction of Adekile Culvert, Orita Aperin, Ibadan
- Expansion of riverbank at Orogun, Ibadan
- Expansion of riverbank at Ogbere-Tioya, Ibadan
- Channelisation of Agodi River, Ibadan


GDL multistage vertical centrifugal booster jockey pump
- Model Number: 25GDL2-12*7
- Brand Name: kenshine-pump
- Place of Origin: Shanghai, China
- Minimum Order Quantity: 1SET
- Supply Capacity: 1000Sets per month/month
- Payment: T/T in advance
- MemberShip: Gold Member
- Inquiry Now
25GDL2-12*7 GDL multistage vertical centrifugal booster jockey pump Description
GDL Vertical multistage centrifugal booster jockey pump:
GDL-type vertical multistage pipeline centrifugal pump is a new generation of product designed and manufactured according to JB/ tq6435-92 standard on the basis of excellent foreign pump models combined with the user's requirements and fire related standards. The suction and outlet of the pump are in the same line. The rotor parts are composed of shaft, impeller, impeller retaining sleeve, shaft sleeve and other parts. The inlet section, middle section and outlet section are connected with tension bolts. The shaft seal is mechanically sealed and lubricated and cooled by pressurized water in the balance chamber. It is a good pump type for the transportation of hot and cold water or liquids with similar physical and chemical properties to water in various industries. The pump is widely used in the circulation and pressurization of cold and hot water in the high-pressure operation system, the parallel supply of water by multiple pumps in high-rise buildings, fire fighting, boiler feed water and cooling water system, and the transmission of various kinds of washing liquid.
GDL vertical multistage pipeline centrifugal pump features
GDL type vertical multi-stage centrifugal pump is of vertical structure, with the characteristics of small floor area, the center of gravity of the pump coincides with the center of the pump foot, thus running smoothly, small vibration, long life.
GDL vertical multistage centrifugal pump has the same diameter and is on the same horizontal center line. It does not need to change the pipeline structure. It can be directly installed in any part of the pipeline.
3. The motor with additional rainproof cover can be directly placed outside for use without the need to build a pump house, greatly saving capital investment.
4. GDL vertical multistage centrifugal pump head can be changed by the pump series (number of impeller) to meet different requirements, so it is widely applicable.
5, the shaft seal with hard alloy mechanical seal, seal reliable, no leakage, mechanical loss is small.
6, efficient energy saving, beautiful appearance.
GDL series vertical multistage pipeline centrifugal pump technical parameters
Temperature range: -15-+120℃;
Working pressure: ≤ 2.5mpa.
GDL series vertical multistage pipeline centrifugal pump service conditions
1. Used for conveying clean water or liquids with physical and chemical properties similar to that of clean water;
2, conveying liquid should be no solid particles, no fiber, no strong corrosive, no explosion risk;
3. The high liquid temperature shall not exceed 120℃;
4. The high working pressure shall not exceed 2.5mpa;
5. The power supply is 380V and 50HZ with 3 phases. Voltage fluctuation within ±5%;
6. The ambient temperature should be lower than 40℃, and the relative humidity should be lower than 95%.
GDL series vertical multistage pipeline centrifugal pump is mainly used
GDL vertical multistage centrifugal pump is particularly suited to the boiler feed water, also can be widely used in pressure vessel water supply, hot water circulation, high-rise building water supply, irrigation, fire pressurization, rinse with water, food, brewing, medicine, chemical industry, aquaculture, environmental protection, such as the chemical technological process and form a complete set of machine tool industry, as the power equipment of water supply and drainage.
|pump material||cast iron or stainless steel|
|centrifugal pump||transfer pump|
|circulating pump||booster pump|
|supply water pump||feeding water pump|
|irrigation pump||cooling pump|


The ability to combine energy sources with intermittent performance with more consistent form of power is crucial for increasing the penetration of renewable energy sources in the electricity and heat generation sector. In this scenario, district heating networks are a promising solution but, to benefit the most from this technology, control tools must be developed with the objective of optimizing the heating load to each of the buildings in the network, while rejecting external disturbances. One of the main challenges for control design and verification is the limited access to data and experimental platforms. In addition, real systems are subjected to a large number of exogenous inputs and tests repeatability for benchmarking is a challenge. To overcome this limitation, a scaled experimental set up has been developed. This paper discusses the design of the experimental setup of a simple heat distribution network as well as the derivation, calibration and validation of a simulation model. Simulation results show that the model error in predicting temperature is always below 1 %.


台灣因地理環境特殊，天然災害頻傳，當災害發生時，民生物資之供給為災民所重視之一環。本研究以九二一地震應變相關作為，檢討現況相關規劃，以地方現有資源規劃探討物資儲備之量能。希望結合現有量販店通路優勢，進而強化災害發生時民生物資儲備與調度運作。 本研究以歷史災害應變相關作為文獻，及災後相關檢討研究，並深入了解量販店現有運作模式，以量販店平時自有物資及設備於災時轉化為物資調度中心，來探討相關可行性，實際訪談量販店之專業人員，分析比較相關問題並提出相對因應措施。進而提出規劃與建議，包含：物資前置處理、徵用合作、運輸規劃考量及備援機制建立等。期能提供一套可行方案，以解決地方政府民生物資儲備現況，提高量販店參與意願。 Due to the special geographical environment, frequent natural disasters in Taiwan. When the disaster occurs, the supply of daily goods is the most important for the victims. In this study, we use the 921 earthquake incident as our case study, to review the current situation related to the planning of available resources to place material reserves of the amount of energy.We wish to combine advantages of the existing discount store channel, and thus strengthen the disaster reserve of material goods and scheduling operations. In this study, as the literature related to the history of disaster and disaster-related review of research and insight into the mode of operation of existing discount stores to discount stores usually own supplies and equipment at the disaster control center when converted into material to the relevant feasibility study.The actual Interview discount stores of professionals, analysis and comparison of the relative issues and propose workarounds. And then make plans and recommendations, including: material pre-processing, requisition cooperation, transport planning considerations and the establishment of such backup mechanism. A view to providing a viable solution to address the livelihood of local government the status of material reserves, improve willingness to participate in discount stores.


iconica concrete plant
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It's not too surprising. Many of our iconic operations were in production during the National Ready Mixed Concrete Association's 50th anniversary, which was celebrated 35 years ago! My research has brought me to wonder about the existence, condition, and operability the concrete plants at which were batched the concrete that built America.
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Aug 26, 2015 · So here is a short quiz about ready-mixed concrete: In what Wyoming town in 1909, was the first documented delivery of ready-mixed concrete? In what year was the National Ready Mixed Concrete Association formed? What New Jersey ready mixed concrete plant is used as a backdrop for a Sopranos episode (2x02)?
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Used Concrete Plants for sale. With hundreds of parts and fully assembled machines, IronPlanet offers you excellent choice. You can buy and sell Concrete Plants from any all manufacturers, including brands such as Rapid, Rex Con, Ross, Vince Hagan.
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Used Cement Plant For Sale At– The Used Online marketplace for used cement plants Search thousands of for sale and wanted listings for used and redundant cement plants Toggle navigation best deals and announcements for upcoming auctions from Concrete and Cement Plant by subscribing to our email updates below Rotary kiln is a kind of thermal ...
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Astec To Acquire Concrete Equipment Providers Con-E-Co And Bmh Systems CHATTANOOGA, Tenn. (August 3, 2020) – Astec Industries, Inc. (Nasdaq:ASTE) today announced the acquisition of two premier full-line concrete batch plant manufacturers serving customers around the world.
After almost 35 years, Iconica’s Fehrman still learning on ...
Jun 23, 2016 · Scott Fehrman (Staff photo by Kevin Harnack) Scott Fehrman’s attachment to the trades started early. “My dad was a sheet metal worker,” he said. “I remember being in kindergarten — our school was right down the road from where he worked — and every day after school I would stop in to see him. “I remember one guy at the shop would always chase me around and put me in a 50-gallon ...
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Working hard to go home safe
R&L Equipment offers bare or operated rental of heavy civil equipment and shoring systems. Low Bed transport services are also available upon request.
R&L Excavating can take on complex and challenging projects such as:
- Turn key subdivision preparation from 1 to 100+ lots
- Water treatment plan siteworks and large diameter buried pipe
- New road construction
- Road widening and other forms of expansion (intersections etc.)
- Deep and shallow utilities
- Commercial / industrial building foundations
- Municipal infrastructure projects
If you have questions, we would love to hear from you. Get in touch with us to start planning your next project now.
R&L Excavating is a division of R&L Construction Ltd. and has a 30 year history of delivering quality civil work around the Okanagan. Started in 1984 by Randy Kozek and Larry Gawne, R&L Excavating was founded on hard work, discipline and a commitment to family values. Today, that tradition is carried on by many loyal members of the R&L team who strive to maintain the excellent reputation that R&L has built in the industry.
R&L Construction consists of the following divisions:
- Construction Management


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Our products include hot rolled steel plate/carbon steel sheet/mild steel/ galvanized steel /alloy steel plate ASTM A570 GR50 which is widely used in various areas such as shipbuilding, construction, bridge building,vehicle,automobile,boiler,container etc.To know more about alloy steel plate ASTM A570 GR30, A570 GR33, A570 GR36, A570 GR40, A570
ASTM A709 - SSABThe ASTM A709 is the Standard Specification for Structural Steel for Bridges and encompasses carbon, high-strength low-alloy, and quenched and tempered alloy steels used as structural plates in the construction of bridges. SSAB offers the following five grades of A709; 36, 50
We have our own factory with more than 20 years production history in ASTM Standard Carbon Steel ASTM A36 Mild Steel A572 Grade 50 Steel Plate manufacturer. All of our ASTM Standard Carbon Steel ASTM A36 Mild Steel A572 Grade 50 Steel Plate products have been checked seriously:With Chemical Composition and Mechanical Properties Analysis; Hydrostatic Test, Dimensional and Visual Inspection
Alro SteelASTM A-572 Grade 50 This high strength, low alloy steel plate offers an optimum combination of strength, weldability and notch toughness with economy. Applications include; bridges, buildings, automotive and truck parts, railroad cars, cargo containers, tote boxes, construction equipment, structural tubing, lighting standards and transmission poles.
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Metal Sheets - Foils Latest Price, Manufacturers & SuppliersFind here Metal Sheets, Foils manufacturers, suppliers & exporters in India. Get contact details & address of companies manufacturing and supplying Metal Sheets, Foils, Foil Sheet across India.
Ranger Steel Steel Plate Supplier, Steel Plate Company Ranger Steel is the largest independently owned on-time steel plate distributor in the US with a national distribution network. 1-800-231-5014. Overview; Products. PRODUCT SUMMARY; ASTM A36 ASTM A36 / ABS Grade A; ASTM A572 Grade 50, Type 2 A709 Grade 50 AASHTO M270; ASTM A588 Grade A/B A709 Grade 50 W; ASTM A514 Quenched
Marine & Offshore Steel Plate. ASTM A131 A&B / ABS A&B; ASTM A131 / ABS AH36 / ABS DH36 / ABS EH36; API 2H Grade 50; ASTM A633; PVQ Steel Plate. ASTM A516/ ASME SA516; ASTM A537/ ASME SA537; ASTM A283/ ASME SA283; ASTM A285/ ASME SA285; Armor & Ballistic Steel Plate. MIL-A 12560; MIL-A 46100; CAT Specs
Steel Sheet Piling Design Manual - mcipinSuggested Allowable Design Stresses-Sheet Piling Steel Brand or Grade Minimum Yield Point, psi Allowable Design Stress, psi* USS-EX-TEN 55 (ASTM A572 GR 55) USS EX-TEN 50 (ASTM A572 GR 50) USS MARINER STEEL USS EX-TEN 45 (ASTM A572 GR 45) Regular Carbon Grade (ASTM A 328) *Based on 65% of minimum yield point. Some increase for temporary
a572 steel price per ton, a572 steel price per ton 167 a572 steel price per ton products are offered for sale by suppliers on , of which steel sheets accounts for 10%, steel round bars accounts for 1%. A wide variety of a572 steel price per ton options are available to you, such as ship plate, container plate, and flange plate.
1,309 steel sheets coil japan products are offered for sale by suppliers on , of which steel sheets accounts for 11%, stainless steel sheets accounts for 2%, and stainless steel strips accounts for 1%. A wide variety of steel sheets coil japan options are available to you, such as aisi, astm, and jis.ASTM A572 Grade 50, Type 2 A709 Grade 50 - Ranger SteelASTM A572 Grade 50, Type 2 A709 Grade 50 AASHTO M270 Used in Bridges, Buildings, Construction Equipment Machinery, Transmission Towers, Truck Parts, Towers, and Freight Cars. It is a higher yield and tensile strength than A36. Most of our stock is already charpy impact tested and suitable for galvanization.


Charming Artwork Deco Structure : Standard during 1925 - 1940 Olden Art Deco Architectures Free Interior Design Decoart House Deco Art Home Designs Architects Architect Luxury Plans Builders Design Download Pictures Of Olden
First, in classic artwork deco, rectangular varieties are sometimes arranged in geometric style, then they're damaged up by curved ornamental elements. subsequent, the art deco buildings and buildings generally use stucco, concrete, easy-faced stone, and terracotta as their fundamental materials. metal and aluminum had been usually used along with glass blocks and ornamental opaque plate glass. artwork deco structure was common buildings and constructions, construction type throughout 1925 to 1940 in america. although artwork deco structure was considered brief-lived movement, artwork deco not solely influenced the structure of most american cities however had an affect on trend, artwork, and furnishings, too. ..


Added McCarley Gardens – Buffalo Rising
BFC Partners and Oak-Michigan HDFC, Inc., the owner of McCarley Gardens, are proposing a significant addition to the development located at the south end of the medical campus. The team renovating the existing units at McCarley Gardens are proposing a six-story mixed-use building at the northwest corner of the site on Virginia and Ellicott streets.
According to a conceptual plan prepared by Carmina Wood Morris, the 265,000 sq.ft. the building would include 24,000 sq.ft. of shops, 250 parking spaces and 212 affordable and market-priced apartments wrapped around a central courtyard. The developers have requested a zoning change for part of the site and are also proposing to relocate a section of North Oak Street to connect to Virginia Street.
From the project request:
The Applicant seeks to expand the improvements to the existing development of McCarley Gardens by adding approximately 212 additional labor / affordable and market-priced housing to a 1.63 acre portion of the North Corner. west of 172 Goodell Street. This second phase of the McCarley Gardens renovation project is a critical step in bringing urban amenities to the residents of McCarley Gardens, Fruit Belt and the Buffalo Niagara Medical Campus. The surrounding residential developments have a long waiting list for units at all prices, underscoring both the demand for and the need for additional housing to accommodate the influx of young professionals and healthcare workers employed at the Medical Campus who are looking for urban living conditions.
The proposed development will also improve safety and liven up the streetscape of Ellicott and Virginia by adding continuous retail stores to this street corner. The presence of retail businesses stimulates foot traffic, improving the economy and the safety of surrounding streets. The project includes up to 20,000 square feet of retail space on the 1st floor, with probable tenants, including casual dining restaurants, providing key equipment to Fruit Belt residents and medical campus employees. In addition, up to 250 parking spaces will provide parking for nearby offices and businesses and help reduce congestion in the existing parking lot near the project site.


hot carbon steel pipe structure steel welded pipe
Pipe Type SSAW Pipe,SSAW Steel Pipe,Spiral Steel Pipe,Welded Spiral Pipe.Application For Ordinary Structural Support (well casing,bridge,building,pile driving) Specification OD 219.1mm ~ 3500mm.WT 6mm ~ 25mm (Up to 1'') LENGTH 6mtr ~ 18mtr,SRL,DRL.Standard Grade ASTM A252 Grade 1/2/3. results for this questionWhat ' s The difference between high carbon and low carbon pipe?What ' s The difference between high carbon and low carbon pipe?The Carbon Steel Black Pipe and efw carbon steel pipe has no coating or finish.The High Carbon Steel cement lined pipe can be used to cover against corrosion.In some cases,low carbon versions such as the Low Carbon Steel casing pipe are used to fight against corrosion to a certain level.Carbon Steel Seamless Pipe Sch 40 ERW / Welded Pipe Manufacturer results for this questionWhat kind of pipe does industrial tube and steel use?What kind of pipe does industrial tube and steel use?Structural and Tested Pipe is stocked at Industrial Tube Steel Corporation in both seamless and welded with a variety of sizes to meet the structural and mechanical piping requirements for applications in water,petroleum,oil gas,construction and other industries.Carbon Steel Pipe - Industrial Tube and Steel Corporation
results for this questionWhich is the best steel pipe for welding?Which is the best steel pipe for welding?Designed for coiling,bending and flanging,A53 carbon steel pipe is suitable for welding.ASTM A500 pipe is a standard specification for cold-formed welded structural tubing produced to round nominal pipe sizes.Kent 4658 Crystal Pkwy.Carbon Steel Pipe - Industrial Tube and Steel CorporationASTM A500 Grade B 50X50mm Hot Rolled Square Low
astm a500 grade b 50x50mm hot rolled square low carbon welded square steel pipe Pipes can be Customized according to customer's requirement on zinc coating thickness,outside diameter,length,wall thickness and steel grade.XIONGYI has 22 years manufacturer experience,Providing high quality products which have been exported over 100 countries.ASTM A53-Standard Specification for - Welded Steel PipeASTM A53 (also referred to as ASME SA53 pipe) is a carbon steel alloy,which can be used as structural steel or for low-pressure pipelines and is also acceptable for ordinary uses in steam,water,gas and air lines.The alloy specifications are set by ASTM International in the specifications ASTM A53 / A53M.ASTM A53 Steel Pipe Specifications
Apr 08,2021·Type Welded Technique ERW Material Carbon Steel Surface Treatment Black Usage Pipeline Transport,Boiler Pipe,Hydraulic/Automobile Pipe,Oil/Gas Drilling,Food/Beverage/Dairy Products,Machinery Industry,Chemical Industry,Mining,Construction Decoration,Special Purpose Section Shape RoundCarbon Steel Pipe - Seamless Welded Steel Pipe Carbon steel pipe can be structural in nature or used in fluid,gas,and oil transmission.We stock carbon steel piping in ASTM A500,A53,and A106 specifications.The grade indicates the testing methods required for a given application.Tested Pipe.ASTM A53 seamless and welded steel pipe is a general,all-purpose pipe.Carbon Steel Pipe - an overview ScienceDirect TopicsCarbon steel pipe is used as the base pipe of bimetallic combination tubing,which has an internal liner made of stainless steel,titanium alloy steel,steel or aluminum,and so on.This type of tubing has high mechanical performance,high corrosion resistance,high
ASTM A53 pipe covers welded and seamless steel pipe,in carbon black material and some cases in hot dipped galvanized (zinc coated).This is a basic pipe material,and its performances and prices also similar to ASTM A106B,or API 5L B.Carbon Steel Seamless Pipe Sch 40 ERW / Welded Pipe There are different methods and types of productions.The Carbon Steel Welded Pipe is produce through welding of lengthy sheets into pipes.There is also the electric resistant welded Carbon Steel ERW Pipe which adds to the strength.There are different mechanical properties such as the pressure containment,which is governed by the schedules of the pipes.Carbon Steel Welded Pipe Butt-welded pipe is formed by feeding a hot steel plate through shapers that will roll it into a hollow circular shape.Forcibly squeezing the two ends of the plate together will produce a fused joint or seam.Figure 2.2 shows the steel plate as it begins the process of forming butt-welded pipe
Large Diameter 219mm to 2000mm SSAW Welded Steel Spiral Pipe in Carbon Steel Standard GB or ASTM Grade SA-106 Grade B/C,SA-53 Grade B,Q235,Q345,B,X42,X52,X60,X65,X70 application As conveyer pipe in the fields of heat,and natural gas,construction pipe,ground piling pipe Outside diameter 12.7-2820mm Wall thickness 0.4-20mm Length 6-12m TechniqueChina Steel Pipe manufacturer,Steel Tube,Welded Steel Steel Pipe,Steel Tube,Welded Steel Pipe manufacturer / supplier in China,offering Q235B Steel Galvanized Steel Pipe Top Quality,Black Square and Rectangular Steel Pipes,Tianjin Youfa Steel Pipe Mill Produced with Good Quality Assurance Dn15-Dn350 Iron Steel Pipe Black Steel Grooved Pipe Made in China and so on.EN-10255 Threaded Steel Pipe Non-Alloy S195T Seamless In this process,an EN-10255 Threaded Steel Pipe is dipped in a hot vat of solution that contains zinc.The molten zinc gets attached to the surface of the BS EN 10255 Steel Pipe,thereby covering every inch of the steel with a thick layer of zinc.Zinc is an element that
BS1387 Galvanized Round Steel Pipe.FOB Price US $690-700 / Ton.Min.Order 10 Tons.Type Welded.Technique ERW.Surface Treatment Galvanized.Usage Pipeline Transport.Section Shape Round.Outer Diameter 17-219mm.High corrosion protection hot rolled black carbon welded Hot rolled black carbon welded steel round pipe and tube Specification Section shape round; Thickness 4mm-32mm or as requirements; Length 4.5-16m or as requirements; Outer Diameter 8.6 150 mm or as requirements.Application:Hot Expanded Carbon Steel Pipes and Heavy Duty Seamless API 5L X52 PSL2,18 Inch Hot Expanded Seamless Carbon Steel Pipes,OD 457 MM Indonesia,Noida,Mumbai,Philippines,Dammam -KSA,Belgium 24 Inch,12M,Hot Expanded Welded LSAW Pipes,API 5L
Hot Expanded Welded Pipe.Tycoon piping is one of the large manufacturers for high quality Hot Rolled,Galvanized Rigid structural steel beam pipe Known to be made from pure galvanized steel,these structural steel beam pipe are anti-corrosive and anti-rust and can withstand heavy weight loads.These structural steel beam pipe are available in customized length,breadth and width options,making them convenient for any property sizes.Hot Selling Big Diameter API 5L Welded Fluid Steel PipeCarbon Steel Pipe,Hot Rolled Pipe,Steel Tube for Gas manufacturer / supplier in China,
JOHO STEEL CO.,LTD,founded in 1988,is a steel group which has integrated steel production,processing and trading into one.We specializes in manufacturing carbon seamless steel pipes,boiler tube/heat exchanger tube and pipes for special uses,besides,it also provides anti-corrosion services and pipes fittings processing for major engineering construction projects.People also askWhat do you need to know about carbon steel pipe?What do you need to know about carbon steel pipe?Carbon steel pipe can be structural in nature or used in fluid,gas,and oil transmission.We stock carbon steel piping in ASTM A500,A53,and A106 specifications.The grade indicates the testing methods required for a given application.ASTM A53 seamless and welded steel pipe is a general,all-purpose pipe.Carbon Steel Pipe - Industrial Tube and Steel CorporationPrice Range $650 - $800Related searches for hot carbon steel pipe structure steel wcarbon steel welded pipe fittingswelded steel pipe specificationscarbon steel pipe sizescarbon steel pipe specificationscarbon steel pipe pricingcarbon steel pipe supplierscarbon steel pipe price liststeel weld on pipe fittingsSome results are removed in response to a notice of local law requirement.For more information,please see here.12345Next
Sch40 A53 A106 API 5L Seamless and Welded Carbon Steel Pipe.US $425-450 / Ton.Hot Selling ASTM A53 A106 API 5L Q235 Seamless/ ERW Welded / Alloy Galvanized Square/Rectangular/Round Carbon Steel Pipe/Stainless Steel Pipe.US $600-800 / Ton.Carbon Steel Seamless Pipes for Piling Pipe Project ASTM A53 / ASTM A106 / API5l / ASTM A252.Professional Manufacturer Premium Quality Steel Structural Apr 07,2021·Building Material,Stainless Steel,Roofing Sheet manufacturer / supplier in China,offering Professional Manufacturer Premium Quality Steel Structural Welded Rectangular and Square Pipe Tube,Hot Sale 4140 42CrMo4 42CrMo Cold Rolled High Precision Alloy Seamless Steel Pipe Tube,Precision Seamless Steel Tube Carbon / Low-Alloy Steel Pipe (Machanical and Hydraulic) and so on.Seamless carbon steel pipeSeamless steel pipe is the main pipe structural material in construction and high pressure usage.It will be manufactured by Hot Rolled and cold drawn.The material properly used in the oil and gas transfer,high pressure hot water,special structure,special chemical transfer and so on.
The application of spiral pipe in industry,also known as spiral steel pipe or spiral welded pipe,is to roll low carbon structural steel and low alloy steel strip into steel pipe according to certain spiral angle,and then weld into pipe joint.Advantages of Spiral steel pipes.First,spiral welded pipes have higher strength than straight Square Pipe - Tianjin Tianyingtai Steel Pipe Co.,Ltd Hot Dipped Galvanized Square Pipe.FOB Price US $500-1,000 / Ton.Min.Order 5 Tons.Type Welded.Technique Cold Rolled.Material Carbon Steel.Surface Treatment Galvanized.Usage Construction Decoration.Structural Steel Pipe - A500 Round Structural Pipe ASTM A500 structural pipe is welded pipe sized tubing made from flat-rolled steel,formed through a roller system and welded using electric-resistance welding.Longitudinal butt joints of welded tubing shall be welded across its thickness in such a manner as to assure the structural
Hot sale various high quality structural,carbon steel Pipe,seamless double welded steel pipe from China leading manufacturer.Our product has LSAW,ERW,Sturdy,Stainless spiral welded structure steel pipe piles The spiral welded structure steel pipe piles you can find on the site are generally built using hot-dipped technology to prevent rusting and weakening of the structural elements.With seamless welding quality,these spiral welded structure steel pipe piles are annealed with nitrogen protection and are polished with utter professionalism.These products are made of robust materials such as carbon steel,Welded Carbon Steel Structure Pipe Factory,Suppliers With our leading technology at the same time as our spirit of innovation,mutual cooperation,benefits and advancement,we will build a prosperous future with each other with your esteemed firm for Welded Carbon Steel Structure Pipe,Welded Steel Tube,Ssaw Steel Pipe Spiral Pipe,Erw Steel Pipe For Gas,With a fast development and our customers come from Europe,United States,Africa and all
ERW (Electric Resistance Welded ) Steel Pipe,ERW Carbon Steel Pipe.Application Used for Oil/Gas/Water transmission,Machinery Manufacturing.Size OD 21.3-660mm.WT 1.0-20mm.LENGTH 5.8/6/11.8/12m.Pipe Standard API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70.Welded Steel PipeWelded steel pipe A steel pipe with a seam on the surface of a steel strip or steel plate that is bent and deformed into a circular shape or a square shape.The inner wall of the welded pipe has welding ribs.The main products include ERW steel pipe,LSAW steel pipe and SSAW steel pipe.Steel pipe is a kind of hollow long steel,which is used as a conduit for conveying fluids,such as oil,natural gas,Welded vs.seamless steel pipe American Piping ProductsJul 02,2018·Welded pipe starts out as a long,coiled ribbon of steel called a skelp.The skelp is cut to the desired length,resulting in a flat rectangular sheet.The width of that sheets shorter ends will become the pipes outside circumference,a value that can be used to calculate its eventual outside diameter.
a210 a1 pipe hot selling erw carbon welded steel pipe.Tel 0086(371)86151827.Mail [email protected] ASTM A210 A1 Tube,ASTM A210 Grade A1,SA210 Gr A1ASTM A210 Grade A-1 Tubes are most commonly used for general purpose applications worldwide.ASTM A210 Gr.A1 Carbon SteelASTM A210 Grade A-1 Tubes are most commonly used for general purpose applicationsseamless steel pipe,welded steel pipe,carbon steel pipeDate 2018-07-09 View 821 Tag seamless steel pipe,welded steel pipe,carbon steel pipe Vucic,President of Serbia,praised China's acquisition of the Serbia steel company for its


How to Set Stone Pavers With Mortar
Stone pavers are a commonly used material for flooring patios and walkways and require a generally straightforward installation process, compared to other patio materials. Not only are pavers usually associated with a simple installation, but they also offer a stable and durable surface suitable for most traffic and weather conditions, and are available in a seemingly endless combination of colors and shapes. Installing stone pavers over mortar instead of just sand offers a foundation that can last much longer and withstand more abuse.
Remove existing soil where stone pavers are to be set, using the square-tip shovel. The depth should be the thickness of the pavers plus an additional three inches for the bedding sand and mortar. Use a tape measure to confirm the necessary depth and the level to ensure a level base.
Place overlapping rows (by about eight inches) of weed barrier across the newly excavated area, using a razor knife to trim the barrier material to fit.
Set an even 2-inch-thick layer of bedding sand across the weed barrier and soak it with water to settle the sand. Use the 4-foot level to ensure a level area; remove or apply additional sand as necessary.
Mix the mortar in a 5-gallon bucket with the electric drill and mixing paddle, according to the directions on the mortar packaging.
- Remove existing soil where stone pavers are to be set, using the square-tip shovel.
- Mix the mortar in a 5-gallon bucket with the electric drill and mixing paddle, according to the directions on the mortar packaging.
Pour about a 1-inch-thick layer of mortar in a corner (it is best to work outward from a corner). You should not pour so much mortar that you will not be able to reach across it. Spread the mortar to achieve the proper thickness using the brick trowel.
Set a stone paver in the corner, pressing gently and using a small level to ensure a level surface. Lay the following stone pavers, working your way outward from the corner until finished. Apply additional mortar as necessary and butt the paver edges together to leave little to no joint spacing. Set the 4-foot level across the newly set pavers as you work to ensure a level surface; tap the pavers with the rubber mallet to correct as necessary.
- Pour about a 1-inch-thick layer of mortar in a corner (it is best to work outward from a corner).
- Set the 4-foot level across the newly set pavers as you work to ensure a level surface; tap the pavers with the rubber mallet to correct as necessary.
Allow the mortar to fully cure before moving on to the next step, according to the timing indicated on the mortar packaging.
Apply small amounts of bedding sand to the stone paver joints to fill any gaps, and sweep away the excess with a broom.
- Step-by-Step Outdoor Stonework; Mike Lawrence; 1995
- Masonry Skills; Richard T. Kreh; 2007
- Cut any pavers to fit using the angle grinder with a masonry blade, as necessary; refer to the angle grinder owner's manual for safety and operation instructions.
J. Cavan Barry is an architecture student with over a decade of experience in the general construction field, and four years in architecture. Barry also has nearly a decade of automotive repair experience and is an avid auto enthusiast. After finding an interest in creative writing, he began writing a novel and recently finished the first draft.


Nature Conservancy Headquarters
The Nature Conservancy
The Nature Conservancy of Indiana wanted a headquarters with a carbon footprint so small that the building would be among the first to achieve LEED Platinum Certification, a recognition earned in 2012.
Wilhelm served as general contractor and used native materials and modern methods of capturing and conserving heat and water. Wind turbines, geothermal heating and cooling, a naturally-lit interior, a green roof and rainwater system all work together to conserve energy. The exterior is clad in low-maintenance Indiana limestone, recycled brick and cement board siding.


These works mainly focus on land topographic surveying and the analysis of the data resulting from it. They also include project cost determination based on completed works, land survey for photovoltaic installation, stream demarcation, etc.
Indicatively, some of the works that HOMEOTECH has implemented include:
- Survey of water transport and storage network of Xenofontos Holy Monastery forest (2015)
- Delimitation of the river-bed of the stream “Megalo Rema” in the region of Aghios Panteleimonas, Municipality of Visaltia, District of Serres (2011)
- Field survey of the road network within the Seih Sou peri-urban forest of Thessaloniki, 58+490Km (2010)
- Topographic survey in the region of Mount Athos for the installation of photovoltaics (2008)