| PVA섬유 보강 CSG 재료의 강도특성 |
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학술지명 한국지반공학회
저자 김기영,김광일,김규원,권혁춘
발표일 2013-12-24
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Recently, application of CSG is increasing in various design?construction projects. At the initial stage of cementation CSG materials show the same mechanical characteristics as soil, however as the cementation process develops, CSG materials gradually reveal material characteristics of concrete. The hardened CSG manifests elastic behavior such as maximum strength at small strain range and rapid brittle failure. In this research, PVA fiber stiffeners were used in order to: ① reduce such brittle behavioral characteristics; ② improve the relatively weak tension performance of CSG materials. The binding strength between the bed materials and fiber prevents rapid brittle failure and increases tensional strength of fiber reinforced CSG materials.Test results show that by fiber reinforcement alone could induce the stress-strain characteristics of CSG materials from brittle failure to ductile failure and also increases the residual strength. |