The aluminum sulfate of the solidification revised mannered null 10 - 30 weight sections

摘要

PROBLEM TO BE SOLVED: To obtain a composition, which comprises, as its essential components, specified amounts of aluminium sulfate and/or iron sulfate and a lithium salt, and the balance alumina cement, thereby improving the solidification-improving property of moisture-containing soil. SOLUTION: The amount of aluminium sulfate and/or iron sulfate in the solidifying material ranges 10 to 30 pts.wt. 100 pts.wt. of the essential components and the amount of the lithium salt ranges from greater than 5 pts.wt. to 5.3 pts.wt. per 100 pts.wt. of the essential components. The most preferred lithium salt is lithium carbonate. The solidifying material may further comprise an inorganic porous moisture-absorbing material and/or an organic polymer moisture-absorbing material, so that the uniaxial compression strength of the soil obtained after improvement in solidification can further be improved, with the soil after the addition of the solidifying material suffering little variation in the pH value. The inorganic porous moisture-absorbing material preferably includes perlite or the like, and the organic polymer moisture-absorbing material preferably includes polyacrylamide, polymethacrylamide or the like.