콘크리트 패널 제조용 폴리에스터 가공사의 공학적 성능 평가에 의한 감소계수 및 장기성능 해석

초록

In this study, polyester composite yarn, which is resin-coated polyester hightenacityyarn, was used as a fiber for reinforcing concrete panels, and resistance to acidicand alkaline solutions, chemical resistance, and salt water resistance were measured toanalyze the application characteristics in manufacturing concrete panels. For polyestercomposite yarn, it can be seen that the strength retention rate by acidic and alkaline solutionsdoes not significantly decrease even if the temperature rises and the test timebecomes longer, In the case of polyester composite yarn, the reduction coefficient by theacidic solution was not significantly affected by the acidic solution, but the reduction coefficientby the alkaline solution decreased as the temperature, pH, and time increased, butthe strength retention decreased significantly. The long-term performance of polyestercomposite yarn did not show a significant decrease in strength retention compared to thatof raw fiber, and although a decrease in strength retention was predicted in a high-temperaturealkaline state, it was found that the extent was not large.

키워드