SLURRY COMPOSITION FOR SOIL IMPROVEMENT CONTAINING BLAST FURNACE SLAG CEMENT AND METHOD FOR PREPARING SOIL CEMENT SLURRY USING SAME

摘要

Provided is a slurry composition for soil improvement in which a fine powder of blast furnace slag is used in a higher proportion than in conventional compositions on the premise that a cured soil having necessary strength is obtained while ensuring satisfactory applicability in soil improvement works and which therefore can contribute to a reduction in carbon dioxide emission. Also provided is a method for preparing a soil cement slurry using the composition. The slurry composition for soil improvement is a composition which has been prepared using the blast furnace slag cement described below as a cement, while regulating the mass ratio of water to the blast furnace slag cement to 40-250%, and which further contains an admixture in an amount of 0.1-5 parts by mass per 100 parts by mass of the blast furnace slag cement. Blast furnace slag cement: A blast furnace slag cement composed of a fine powder of blast furnace slag having a fineness of 3,000-13,000 cm2/g and portland cement, the contents of the fine powder of blast furnace slag and the portland cement being 60-80 mass% and 20-40 mass%, respectively (total, 100 mass%).