합성섬유로 보강된 시멘트 혼합토의 강도 특성에 관한 실험적 연구

Abstract

The strength behavior of synthetic fiber reinforced soil-cement mixtures was evaluated through unconfined compression tests in this study. Test specimens were prepared with a variety of cement contents, fiber contents, and fiber lengths to investigate the effect of strength characteristics. An laboratory tests was carried out through the unconfined compressive strength test on these test specimens. As the amount of cement and sand increases, unconfined compressive strength tended to increase. The PP and PVA fiber reinforced soil-cement mixture showed a ductile behavior whereas the soil-cement mixture without fibers showed a brittle behavior. Residual strength and unconfined compressive strength were increased when the fiber content is increased from 0.5 to 1.0 percent. When the fiber content exceeds 1.0 percent, the residual strength was still increased whereas the unconfined compressive strength was slightly decreased.