| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder additive for soil stabilization, a soil stabilization material and a soil stabilization method capable of improving processability by fluidization and further reducing heavy metals.SOLUTION: There are provided a powder additive for soil stabilization which contains calcium sulfite having pH of 9.0 or more, oxidation reduction potential (ORP) of 50 mv or less and MgO content of 0.5% or more, where the powder additive for soil stabilization is preferably 0.01 to 10 pts.mass based on 100 pts.mass of cement, which further is obtained by mixing a powder water-reducing agent of naphthalenes, melamines, aminosulfonic acids, polycarboxylic acids or polyethers, where the calcium sulfite is a byproduct during manufacturing a lime sulfur, a material for soil stabilization by mixing the powder additive for soil stabilization and cement and a soil stabilization method for reducing viscosity by mixing the powder soil stabilization material with earth.SELECTED DRAWING: None |
