Abstract
Strength and deformation of unsaturated compacted clay under wetting-drying cycles considering different amplitudes and numbers have been studied in the present study. A non-suction controlled method was applied to carry out cyclic wetting-drying on the compacted clay, and the effect of wetting-drying cycles on confined compressive strength peak and deformation of specimens have been investigated. The results show that wetting-drying cycles can reduce the strength of compacted clay, and after 4-5 times of cycle the strength tends to be stable. The height and volume of compacted clay increase as the number of cycle increases. It can be indicated that under wet condition the influence of amplitude of wetting- drying cycle on the deformation is greater than that under dry condition.
Published Version
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