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

Korea Concrete Institute (한국콘크리트학회)
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An Experimental Study on the Properties of Lightweight Aggregate Concrete Using Waste PET Bottles

폐 PET병을 이용한 경량골재콘크리트의 특성에 관한 실험적 연구

  • 최연왕 (세명대학교 토목공학과) ;
  • 정지승 (동양대학교 지구환경시스템공학) ;
  • 문대중 (세명대학교 토목공학) ;
  • 신화철 (세명대학교 토목공학) ;
  • 황윤태 (세명대학교 토목공학과)
  • Published : 2002.10.01
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Abstract

Recently, the more the PET bottles are needed, the more waste PET bottles were produced. So, if there was no suitable recycling, that was contaminate our environment and use up the natural resources. This paper deals with the artificial lightweight aggregate(ALA), made of waste PET bottles, and the properties of concrete replaced with ALA. As a result of experiment, it is shown that the specific gravity of PBLA is 1.39, the unit volume weight is 844 kg/$cm^3$, and absorbing rate is 0. In absorbing rate test, the rate is 10 % increased by replacing of 20 % PBLA and the mixture rate for water and cement is 44.6 % and 51.2 %, in case target strength for 240kgf/$cm^2$, and 270kg/$cm^2$, by added PBLA 75 % and 50 % respectively. So, to obtain a certain target strength, appropriate W/C ratio is required the replacement ratio of PBLA.

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