Slurry composition for ground improvement using blast furnace slag composition and method for preparing soil cement slurry using the same

摘要

PPROBLEM TO BE SOLVED: To provide a ground-improving slurry composition which ensures good applicability in ground-improving constructions, uses blast furnace slag powder in a higher rate than the present slurry compositions to give ground-cured products having necessary strengths, and can inhibit the generation of carbon dioxide, and to provide a method for preparing a soil cement slurry using the same. PSOLUTION: This ground-improving slurry composition is characterized by using the following blast furnace slag composition as a binder to prepare a water/the blast furnace slag composition in a mass ratio of 40 to 250%, and containing an admixture in an amount of 0.1 to 5 pts.mass per 100 pts.mass of the blast furnace slag composition. The blast furnace slag composition is prepared by adding 0.5 to 1.5 pts.mass or 5 to 45 pts.mass of an alkali stimulating material to 100 pts.mass of a mixture comprising 80 to 95 mass% of blast furnace slag powder having a fineness of 3,000 to 13,000 cmSP2/SP/g and 5 to 20 mass% of gypsum (totally 100 mass%). PCOPYRIGHT: (C)2011,JPO&INPIT