Crack Resistance Properties of Fiber Reinforced Concrete with Recycled PET Fiber

재생 PET 섬유가 혼입된 섬유 보강 콘크리트의 균열저항특성

This study was performed to prove the possibility of utilizing short plastic fibers made for recycled polyethylene terephthalate (RPET) as a structural material. To measure of crack control capacity, restrained drying shrinkage cracking test was performed. In order to verify the capacity of RPET fiber, it was compared with poly propylene (PP) fiber, most widely used short synthetic fiber, for fiber volume fraction of 0%, 0.5%, 0.75%, and 1.0%.

본 연구에서는 재활용된 polyethylene terephthalate (RPET)로 만든 플라스틱 단섬유의 구조재료로써의 사용 가능성을 조사하였다. 실험은 균열제어 성능을 확인하기 위해 구속건조수축균열 시험을 평가하였다. 성능을 검증하기 위해서 가장 널리 상용되는 합성섬유인 poly propylene (PP) 섬유와 비교하였으며, 섬유의 혼입률을 0%, 0.5%, 0.75%, 1.0%로 변화시켜 혼입률에 따른 영향을 함께 검토하였다.