Natural river sand is rapidly depleting due to excessive use in construction, causing environmental imbalance and increasing costs. At the same time, foundry sand, an industrial waste material, is disposed of in landfills. This project aims to utilize foundry sand as a sustainable alternative in concrete.
This project investigates the use of foundry sand as a partial replacement of fine aggregate in M25 grade concrete to enhance sustainability while maintaining strength and workability.
- Evaluate foundry sand as an alternative to natural sand
- Analyze workability using slump test
- Measure compressive strength at 7, 14, and 28 days
- Identify optimal replacement level
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Concrete Grade: M25
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Replacement Levels:
- FS0 → 0%
- FS20 → 20%
- FS40 → 40%
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Tests Conducted:
- Slump Test
- Compressive Strength Test (CTM)
| Mix | Slump (mm) | 28-Day Strength (MPa) |
|---|---|---|
| FS0 | 90 | 27.55 |
| FS20 | 75 | 31.41 |
| FS40 | 55 | 27.11 |
👉 20% replacement (FS20) provides the best performance, achieving the highest strength while maintaining acceptable workability.
- Experimental data stored in
/data - Python script (
analysis.py) used for visualization - Strength variation analyzed across curing periods
- Reduces dependency on natural river sand
- Utilizes industrial waste (foundry sand)
- Promotes eco-friendly and cost-effective construction
/report→ Project report/data→ Experimental datasets/analysis→ Python analysis/images→ Experimental visuals
- Use of admixtures to improve workability
- Durability testing (permeability, shrinkage)
- Real-world construction applications
Pranav Mathur