README.md

---
title: Concrete Strength Predict Design
colorFrom: gray
colorTo: blue
sdk: docker
app_port: 8501
pinned: false
license: mit
---

# Concrete Compressive-Strength Predict / Design

An interactive tool for concrete mix design.

- **Predict strength** - enter a mix design, with optional fields allowed, and get the predicted compressive strength.
- **Design a mix** - enter a target strength and get several detailed mix designs that reach it.

Trained on about 9,700 mixes spanning about 2 to 198 MPa, from normal-strength concrete through ultra-high-performance concrete.

## Running locally

```bash
pip install -r requirements.txt
streamlit run streamlit_app.py
```

## Files

| file | purpose |
|---|---|
| `streamlit_app.py` | the web UI |
| `inference.py` | model loading plus predict / design logic |
| `build_inverse_index.py` | offline script to precompute the design index and `model_config.json` |
| `checkpoints_full_rich/` | trained model files and `model_config.json` |
| `inverse_index.csv` | precomputed predictions over the training mixes |