Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Experimental Study on Durability Performance of GFRP Composite for Alkali Solution

충진제 종류에 따른 GFRP 복합체의 내알카리성 실험

  • 유영준 (한국건설기술연구원) ;
  • 박영환 (한국건설기술연구원) ;
  • 김형열 (한국건설기술연구원) ;
  • 문창권 (부경대학교 공과대학 신소재공학부) ;
  • 이승렬 (부경대학교 공과대학 신소재공학부)
  • Published : 2006.11.04
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Abstract

This paper presents experimental results for durability performance of GFRP composite exposed to the $80^{\circ}C$ alkali solution. A total of 280 specimens for 4 types of additive and 7 cases of immersion time were prepared and tested. Additives used in this study were PVA, kaolin clay, and alumina powder. Specimens were immerged up to 30 days and tested for tensile strength for each immersion time. The results indicate that it is important to fill the inner space of GFRP composite densely to avoid the decrease of tensile strength. In this study, PVA additive showed better performance than other additives.

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