The Dehydration and Hardening Characteristics of High Water Content Clay Added by a Small Amount of Stabilizer.

概要

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It is longed to improve high water content soil which is discharged at the civil engineering works and to reuse the improved soil effectively because of decreasing the lands for spoil-banks.<BR>High water content clay is usually dehydrated to reduce its volume, but further the dehydrated cake needs to be hardened by a cement type stabilizer to be reused. So, the authors worked out a new method that was adding a small amount of cement before dehydrating in order to improve the both dehydrating and solidifying characteristics of the cake.<BR>As the result of the research on this method, the following were clarified.<BR>1. Due to the addition of a small amount of cement, the dehydration characteristic was greatly improved, and the strength of the dehydrated cake became larger.<BR>2. The dehydration characteristic was affected by the liquid limit of soil, and the strength of the dehydrated cake could be designed by cement content rate to dry soil.
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