Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Bond Properties of Structural Poly Vinyl Alcohol Fiber in Cement Based Composites with Metakaolin and Silica Fume Contents

메타카올린 및 실리카퓸 첨가율에 따른 구조용 PVA 섬유와 시멘트 복합재료의 부착특성

  • 이정우 (공주대학교 대학원 농공학과) ;
  • 박찬기 (공주대학교 지역건설공학과)
  • Received : 2012.02.23
  • Accepted : 2012.05.25
  • Published : 2012.09.30
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Abstract

In this study, the effect of metakaoline and silica fume on the bond performances of structural polyvinyl alcohol (PVA) fiber in cement mortar, including bond strength, interface toughness, and microstructure analysis are presented. Metakaoline and silica fume contents ranging from 0 % to 15 % are used in the mix proportions. Pullout tests are conducted to measure the bond performance of PVA fiber from cement mortar. Test results showed the incorporation of metakaoline and silica fume can effectively enhance the PVA fiber-cement mortar interfacial properties. Bond strength and interface toughness increased with metakaoline and silica fume content up to 10 % in cement mortar and decreased when the metakaoline and silica fume content reached 15 %. The microstructural observation confirms the findings on the interface bond mechanism drawn from the fiber pullout test results.

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References

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