DEHYDRATION SOLIDIFICATION OF SOIL OF HIGH WATER CONTENT AND DEHYDRATION TYPE SOLIDIFICATION MATERIAL

摘要

PROBLEM TO BE SOLVED: To attain dehydration solidification of high-water content soil to high-strength solidification product that is useful as a reclaiming material in situ with high volume reduction rate by adding a dehydration type solidification material to high water content soil to separate into a supernatant water phase and a mud phase and solidifying the mud phase. ;SOLUTION: (A) Soil of high water content is mixed with (B) a dehydration type solidification material [for example, comprising cement (B1), blast furnace slag (B2), and plaster (B3), when necessary, in addition, a dehydration aid such as slaked lime or aluminum polychloride (B4), and a water-reducing agent (B5) at a B1, B2, B3 weight ratio of (30-60):(25-60):(5-30), and when necessary, in addition, the components B4 and B5 are added in amounts of 1-20 wt.% and 0.1-10 wt.% based on the total of the components B1, B2 and B3, respectively. Thus, the soil of high water content separates into supernatant and mud slurry in no need of civil engineering or mechanical dehydration treatment, then the mud slurry is directly solidified in situ.;COPYRIGHT: (C)1999,JPO