| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition, which comprises, as its essential components, a specified amount of aluminium sulfate and/or iron sulfate, and the balance magnesium oxide, thereby improving the solidification-improving property of moisture-containing soil. SOLUTION: The amount of aluminium sulfate and/or iron sulfate in this solidifying material ranges 10 to 50 pts.wt. per 100 pts.wt. of the essential components. In doing so, there can be obtained such a solidifying material which is able to provide modified soil satisfying strength and a pH value. The solidifying material may further comprise an inorganic porous moisture-absorbing material and/or a moisture-absorbing organic 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 includes perlite or the like, and is added to in an amount of 5 to 60 pts.wt. per 100 pts.wt. of the essential components. The moisture-absorbing organic material includes a synthetic polymer such as polyacrylamide or the like, and is added in an amount of 0.1 to 5 pts.wt. per 100 pts.wt. of the essential components. |
