Soil Stabilization (Lime / Cement) Quantity
Lime or cement takeoff for subgrade stabilization from a percent-by-dry-weight mix design.
Example
You enter
- Stabilizer content by dry soil weight (%) 6
- Soil dry density (pcf) 110
- Treatment depth (in) 8
- Treated area (sy) 10000
You get
- Spread rate 39.6 lb/sy
- Stabilizer to order 198 tons
Checked against published worked examples from: Lime Association of Texas.
Details, formula, and sources
ScopeSpread (lb/sy) = percent/100 x density x depth/12 x 9; tons = spread x area / 2000. A 6% lime treatment 8 in deep in 110 pcf soil is 39.6 lb/sy, so a 10,000 sy pad needs 198 tons; a 4% cement treatment is 26.4 lb/sy and 132 tons. The geotech's mix design sets the percent - lime for plastic clays, cement for granular subgrades.
Formula or tablespread_lb_per_sy = application_pct/100 x soil_density_pcf x (depth_in/12) x 9; tons = spread_lb_per_sy x area_sy / 2000.
Source and editionStabilizer-quantity identity by name (spread from percent x density x depth; tons from spread x area); first-principles takeoff arithmetic.
Free accessThe stabilizer takeoff is public quantity geometry; the application percent comes from the geotech's mix design.
What governsEstimate. AHJ and licensed professional govern.
API field namesapplication_pct, soil_density_pcf, depth_in, area_sy, spread_lb_per_sy, tons
- Application percent stabilizer by dry soil weight from the geotech's mix design (lime ~6%, cement ~4% typical)geotechnical mix design
- Soil density the dry density of the subgrade being treated (~110 pcf default)geotechnical report