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Interfacial Pullout Characteristics of Recycled PET Fiber With Hydrophilic Chemical Treatments in Cement Based Composites
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 Title & Authors
Interfacial Pullout Characteristics of Recycled PET Fiber With Hydrophilic Chemical Treatments in Cement Based Composites
Won, Jong-Pil; Park, Chan-Gi; Kim, Yoon-Jeong; Park, Kyung-Hoon;
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 Abstract
The purpose of this study was to enhance bond performance between recycled PET (polyethylene telephthalat) fiber and cement composites through hydrophilic treatment using maleic anhydride grafted polypropylene(mPP). The mPP with various concentration of 0%, 5%, 10%, 15% and 20% to determine effect on bond behavior of recycled PET fiber were applied as experimental variables. Dog bone shaped specimens according to JCI SF-8 was applied to evaluate the bond strength and pullout energy. The results showed increased bond strength and pullout energy as concentration of mPP. Concentration of 15% mPP showed the most effective results while 20% showed reduced performance results. Because 15% mPP ensures perfect coating while 20% makes thick coating area that resulted in crack propagation and consequent separation of PET fiber and coated area during pullout load occurred. Enhancement mechanism of bond performance of recycled PET fiber and cement composites with each concentration of mPP could be conformed through investigation of microstructure of fiber surface.
 Keywords
bond behavior;cement based composites;maleic anhydride grafted polypropylene(mPP);pullout energy;
 Language
Korean
 Cited by
1.
재생 PET섬유가 혼입된 황토 콘크리트 보의 휨 거동,김성배;남진원;이나현;김장호;최홍식;

한국콘크리트학회논문집, 2008. vol.20. 5, pp.619-626 crossref(new window)
2.
재생 PET 섬유가 혼입된 섬유 보강 콘크리트의 구조거동,김성배;김현영;이나현;김장호;

대한토목학회논문집, 2009. vol.29. 5A, pp.543-550
3.
재생 PET 섬유가 혼입된 섬유 보강 콘크리트의 강도 및 균열저항 특성,김성배;김현영;이나현;김장호;

한국구조물진단유지관리공학회 논문집, 2010. vol.14. 1, pp.102-108
4.
폴리올레핀계 합성 섬유와 시멘트 모르타르와의 부착 특성에 미치는 광물질 혼화재의 효과,이진형;박찬기;

한국콘크리트학회논문집, 2011. vol.23. 3, pp.339-346 crossref(new window)
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무수말레인산이 그라프트된 폴리프로필렌 분말 첨가에 따른 시멘트 모르타르와 무극성 마크로 합성섬유의 부착 특성,이진형;박찬기;

대한토목학회논문집, 2011. vol.31. 2A, pp.137-143
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메타카올린 및 실리카퓸 첨가율에 따른 구조용 PVA 섬유와 시멘트 복합재료의 부착특성,이정우;박찬기;

한국농공학회논문집, 2012. vol.54. 5, pp.9-16 crossref(new window)
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