Abstract
The objective of the present study is to improve durability of the cement-treated soil against wetting and drying repeated actions by applying fiber reinforcement technique. The wetting and drying cycle tests were conducted on the specimens of the cement-treated soils and the fiber-reinforced cement-treated soils, respectively. The degradation ranks were evaluated based on the observation of the external state changes, and the changes in deformation and strength characteristics were evaluated by unconfined compression tests on the specimens after each cycle of repetitive actions. From the laboratory test results of 1 to 15 cycles, it was clearly shown that the durability of the cement-treated soil against wetting and drying repeated actions was greatly improved by fiber reinforcement.