Table 12 Summary of some other solid wastes used for forming SRS
Solid waste | Source | Main composition | Primary mechanism |
|---|---|---|---|
LKD | A by-product of the manufacture of quick lime | A high amount of calcium | LKD is usually combined with FA for soil stabilization. The active calcium in LKD complements Al2O3 and SiO2 in FA to form C–A–S–H gel |
CCR | A by-product of acetylene, polyvinyl chloride, and polyvinyl alcohol production process | Calcium hydroxide | In the presence of pozzolanic materials (FA, GGBS, and RHA), it provides cementitious function |
Recycled bassanite | Production from the gypsum waste | CaSO4 \(\bullet\) 1/2H2O | Recycled bassanite is a soluble material, so it is usually mixed with cement or lime as a solidification agent. Formation of ettringite and other cementitious gels |
Bagasse ash | A by-product of the combustion process of bagasse, which is the residue obtained by the sugar industry after extracting the juice from sugarcane | Amorphous silica | As a pozzolanic material |