SILICATE-BASED CHEMICAL FOR STABILIZING SOIL

摘要

PROBLEM TO BE SOLVED: To obtain a chemical for soil stabilization having excellent development of strength of hardened body obtained in an instant hardening type or a middle hardening to a long hardening type and not causing disproportionation phenomena by precipitation and settling of a silicic acid component in the chemical. SOLUTION: In this chemical for soil stabilizer comprising a main agent solution composed of an aqueous solution of an alkali silicate as a main component and a hardening agent solution composed of an aqueous solution of sulfamic acid as a main component, the total number of mols of Al and Mg contained based on 1 mol of an SiO2 component in the chemical is >=0.005 mol and <0.020 mol, and the hardening agent solution is formulated with >=0.005 mol of the total number of mols of Al and Mg derived from at least one kind of component selected from the group consisting of aluminum sulfate and magnesium (hydroxide)oxide based on 1 mol of the SiO2 component.