1. What is this item?

This refers to densifying the soil to increase its load-bearing capacity and treating the soil chemically or physically to make it more stable. It is typically done in:

o Areas where roads, sheds, or buildings will be constructed

o Low-lying or waterlogged patches

o Farms with high clay content or expansive soils

o Locations where machinery movement is frequent

2. How is the Quantity Estimated?

o Generally measured in square meters (m²) for surface treatment

o For deeper compaction (like under a shed), it's calculated in cubic meters (m³)

o One must define depth of compaction or stabilization, usually 150 mm to 600 mm

o Based on areas planned for infrastructure or regular vehicular use

3. What are the Cost Components for this item?

o Roller hiring cost (₹1,200–₹2,500/hour) depending on size and type (vibratory/manual)

o Water spraying equipment/labor for moisture conditioning

o Soil stabilizers like lime, cement, fly ash, or enzymes (₹3–₹15/kg)

o Mixing & spreading costs (manual or machine-based)

o Testing charges for compaction density or soil strength

o Supervision and quality control

4. What are the Going Rates and How is the Per Unit Rate Calculated?

o Basic surface compaction without stabilization costs around ₹25–₹40/m²

o Moderate stabilization with lime/fly ash, ₹80–₹150/m²

o Heavy-duty compaction for building zones, especially if requiring multi-layered compaction and testing, can go up to ₹250–₹400/m²

o For full-volume compaction (say under a shed), cost is calculated as ₹300–₹500/m³ depending on the soil type and materials used.