ENVIRONMENT-CONSCIOUS EMBANKMENT MATERIAL USING HIGH-VOLUME INDUSTRIAL WASTE BY HYDRATION REACTION OF PHOSPHOGYPSUM-SLAG

摘要

More particularly, the present invention relates to a method for improving the cement strength of a mixed soil, neutralization treatment and prevention of leaching of harmful substances by mixing gypsum powder with a gypsum slurry and mixing the gypsum powder with petroleum coke The present invention relates to an environmentally stable clayey composition which exhibits excellent performance over that of general embankment and soil materials including desulfurized gypsum. 1 to 10 parts by weight of blast furnace slag fine powder and 1 to 20 parts by weight of petroleum gypsum desulfurized gypsum based on 100 parts by weight of the mixed soil mixed with the gypsum of the present invention.