Table 1 Physical properties of various materials used in the study.
From: Sustainable subgrade improvement with calcium carbide residue and rice husk ash
Properties | Units | Black cotton soil | Calcium carbide residue | Rice husk ash |
|---|---|---|---|---|
Sieve No. 4 | % | 100 | 100 | 100 |
Sieve No. 200 | % | 93.74 | 85.47 | 84.13 |
Silt Fraction | % | 68 | - | - |
Clay Fraction | % | 23 | - | - |
Type | - | CH | ML | ML |
Colour | - | Black | White | Greyish |
Liquid Limit | % | 64 | - | - |
Plastic Limit | % | 24 | - | - |
Plasticity Index | % | 40 | - | - |
Specific Gravity | - | 2.61 | 2.32 | 2.07 |
Differential Free Swell | % | 73 | - | - |
Optimum Moisture Content | % | 21 | 18.2 | 18.2 |
Maximum Dry Density | g/cc | 1.58 | 1.73 | 1.73 |
