billing: HF Credits ($57 Lab)

question: How do conductive fillers such as graphene, carbon nanotubes, and carbon black modify the sensing and mechanical behavior of cement-based materials compared with silica-fume-enhanced concretes?


billing: HF Credits ($57 Lab)

question: What are the main conduction mechanisms and structural design principles behind self-sensing concrete, and how are these concepts complemented by nano- and micro-scale modifications such as silica fume and graphene additions?


billing: HF Credits ($57 Lab)

question: How does carbon-nanotube dispersion technique influence the electrical conductivity and strain-sensing performance of cement-based composites according to Konsta-Gdoutos et al. (2014), Dâ€™Alessandro et al. (2021), and Lee et al. (2017)?


billing: HF Credits ($57 Lab)

question: What advantages do hybrid carbon-based fillers (CNTs + CNFs or CFs) provide over single-type fillers in cement-based self-sensing composites according to these studies?


billing: HF Credits ($57 Lab)

question: How do graphite, few-layer graphene, and intrinsic graphene composites differ in achieving low percolation thresholds and high piezoresistive performance in cement-based sensors?


billing: HF Credits ($57 Lab)

question: What mechanisms contribute to the self-sensing and environmental stability of graphene-based cement composites compared to graphite-filled composites?


billing: HF Credits ($57 Lab)

question: How do fabrication methods such as ultrasonication, surfactant-assisted dispersion, and surface coating influence the mechanical and electrical properties of smart cement composites containing graphene or graphite fillers?


billing: HF Credits ($57 Lab)

question: How do multi-scale conductive fillers (e.g., steel fibers, carbon black, and MWCNTs) collectively enhance the self-sensing performance of ultra-high-performance concrete (UHPC)?


billing: HF Credits ($57 Lab)

question: What mechanisms explain the electromechanical coupling and strain sensitivity observed in self-sensing cementitious composites enhanced with carbon black and metallic fillers?


billing: HF Credits ($57 Lab)

question: How do dispersion and packing optimization techniques (e.g., ultrasonication, MAA packing model, and controlled filler ratios) influence both conductivity and mechanical integrity of self-sensing UHPC?


billing: HF Credits ($57 Lab)

question: How do steel fibers and carbon-based fillers influence the strain-sensing and crack-monitoring behavior of smart concrete?


billing: HF Credits ($57 Lab)

question: What is the relationship between gauge factor, linearity, and fiber content in steel- or brass-fiber-reinforced smart concrete?


billing: HF Credits ($57 Lab)

question: How do large-scale and cyclic loading tests verify the real-world applicability of self-sensing concrete?


billing: HF Credits ($57 Lab)

question: How does nanocarbon black or other conductive additives enhance strain-sensing performance in ultra-high-performance concrete (UHPC)?


billing: HF Credits ($57 Lab)

question: What are the optimal dosages and curing conditions for achieving both mechanical strength and self-sensing in UHPC?


billing: HF Credits ($57 Lab)

question: How do mechanical and electrical responses of self-sensing UHPC correlate under cyclic and monotonic loading?


billing: HF Credits ($57 Lab)

question: How do ozone and silane surface treatments enhance the interfacial bonding and mechanical performance of fiber-reinforced cementitious composites?


billing: HF Credits ($57 Lab)

question: What microstructural and spectroscopic evidence confirms successful silane grafting and its effects on fiber thermal stability?


billing: HF Credits ($57 Lab)

question: How do surface functionalization strategies influence the strain-sensing behavior and durability of cementitious composites containing carbon or natural fibers?


billing: HF Credits ($57 Lab)

question: How do hierarchical CFâ€“CNT fillers, multiscale stainless-steel-wire/nanofiller systems, and CNT/NCB composite fillers collectively demonstrate the benefits of multiscale conductive networks for self-sensing cementitious composites?

expected_sources: self?sensing cementitious composites with hierarchical carbon fiber?carbon nanotube composite fillers


billing: HF Credits ($57 Lab)

question: What do these studies reveal about the dominant piezoresistive mechanisms and their modeling in cement-based materials containing hybrid or hierarchical conductive fillers?

expected_sources: self?sensing cementitious composites with hierarchical carbon fiber?carbon nanotube composite fillers


billing: HF Credits ($57 Lab)

question: What mix design and processing strategies are recommended by these three studies to obtain high-sensitivity, durable self-sensing composites suitable for structural health monitoring applications?

expected_sources: self?sensing cementitious composites with hierarchical carbon fiber?carbon nanotube composite fillers


billing: HF Credits ($57 Lab)

question: How do water ingress, moisture saturation, and elevated temperatures respectively affect the electrical resistivity and piezoresistive response of CNT- or MWCNT-based cementitious composites with or without graphite hybridization?


billing: HF Credits ($57 Lab)

question: What mechanisms explain the observed changes in gauge factor and linearity of the strain-sensing response under varying water content and temperature in these CNT/MWCNT-based smart composites?


billing: HF Credits ($57 Lab)

question: Based on these three studies, what mix design and operational strategies are recommended to achieve environmentally robust self-sensing cementitious composites for real structural health monitoring conditions?


billing: HF Credits ($57 Lab)

question: How does the use of Pearsonâ€™s correlation in graphite-based self-sensing cement composites complement traditional RÂ²-based evaluation, and how can this statistical approach be combined with microstructural design strategies such as excluded volume theory and electrostatic self-assembly to optimize sensing reliability?


billing: HF Credits ($57 Lab)

question: What roles do percolation threshold, filler dispersion, and the excluded volume effect play in controlling piezoresistive sensitivity and linearity in graphite- and CNT/TiO2-modified cementitious composites?


billing: HF Credits ($57 Lab)

question: How can insights from piezoresistive behavior in graphite/CNT-based composites and the piezopermittivity framework be integrated to design multi-modal self-sensing cementitious systems for structural health monitoring?


billing: HF Credits ($57 Lab)

question: How do specimen size in SHPB tests, four-point probe geometry, and mortar thickness in capacitive sensing collectively influence the measured mechanical and electrical responses of cementitious or similar materials?


billing: HF Credits ($57 Lab)

question: What best-practice guidelines can be derived from these three papers for selecting specimen dimensions, probe configurations, and thickness when designing robust self-sensing or high-strain-rate test setups in cement-based materials?


billing: HF Credits ($57 Lab)

question: How can concepts from four-point probe correction factors and capacitive thickness dependence be integrated with SHPB size-effect findings to interpret or design electrical and mechanical sensing in structurally scaled concrete elements?


billing: HF Credits ($57 Lab)

question: How do graphite-based smart pavement composites, carbon-fiber-reinforced cement mortars, and electricity-based multifunctional concrete collectively demonstrate the feasibility and advantages of embedded self-sensing systems for traffic and impact monitoring?


billing: HF Credits ($57 Lab)

question: What measurement configurations and design choices (e.g., electrode layouts, sensing zone geometry, and filler type) are recommended across these studies to maximize the accuracy and robustness of electrical-resistance-based monitoring in real infrastructures?


billing: HF Credits ($57 Lab)

question: How do these works together outline a roadmap from laboratory-scale sensing concepts to practical deployment of electricity-based multifunctional concrete in transportation and structural systems?


billing: HF Credits ($57 Lab)

question: How does ozone treatment modify carbon fiber surfaces and improve cement-matrix interaction?


billing: HF Credits ($57 Lab)

question: What are the comparative effects of silane-treated versus ozone-treated carbon fibers on the mechanical performance of cement pastes?


billing: HF Credits ($57 Lab)

question: How does silane treatment alter the microstructure and durability of natural fibers such as sisal and bagasse used in cementitious composites?


billing: HF Credits ($57 Lab)

question: How do silane coupling agents affect the mechanical performance and interfacial microstructure of UHPFRC containing steel fibers?


billing: HF Credits ($57 Lab)

question: What role does silane chemistry and concentration play in determining the efficiency of surface modification for bagasse fibers?


billing: HF Credits ($57 Lab)

question: Across carbon, steel, and natural fibers, what common mechanisms explain how silane or ozone treatments improve composite strength and self-sensing potential?