Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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An Experimental Study on the Residual Compressive Strength of PCM Depending on Temperature Variations

온도변화에 따른 폴리머 시멘트 모르타르의 잔존압축강도 특성에 관한 실험적 연구

  • Seo, Dong-Goo (Department of Fire and Protection Engineering, Hoseo University) ;
  • Koo, In-Hyuk (Department of Fire and Protection Engineering, Hoseo University) ;
  • Yoon, Ung-Gi (Department of Fire and Protection Engineering, Hoseo University) ;
  • Kim, Bong-Chan (Department of Fire and Protection Engineering, Hoseo University) ;
  • Kim, Hyung-Jun (Korea Conformity Laboratories) ;
  • Kwon, Young-Jin (Department of Fire and Protection Engineering, Hoseo University)
  • Received : 2015.06.15
  • Accepted : 2015.09.21
  • Published : 2015.10.20
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Abstract

The Purpose of this study was to establish the basic data on the mechanical properties of PCM in the high temperature range. To this end, an experiment was conducted on the characteristics of the residual compressive strength by temperature (100, 200, 400 and $600^{\circ}C$) with a fixed temperature heating. An after heating test was performed to investigate the properties after fire damage. The result showed that the residual compressive strength of PCM had a tendency to decrease, regardless of the type of polymer. It was also found that when the contents were low, the residual compressive strength started to greatly decrease from the high temperature range of $400^{\circ}C$, and that the specimen containing PAE showed a steeper slope than the specimen containing EVA. However, since little studies have been conducted on the mechanical properties of PCM with the high temperature, it is considered that, in addition to this study, basic studies must be preceded, including studies on the repairing methods.

본 연구는 고온영역에 있어서 PCM의 역학특성의 기초적인 자료를 구축하는 것을 목적으로, 정온가열에 따른 온도별(100, 200, 400, $600^{\circ}C$) 잔존압축강도 특성에 대하여 실험하였다. 화재피해 이후의 특성을 살펴보기 위해 냉간시험을 실시하였으며 그 결과, PCM의 잔존압축강도는 폴리머의 종류에 관계없이 모두 감소하는 경향이 나타났다. 또한 함유량이 많을수록 $400^{\circ}C$의 고온영역부터 크게 감소하는 특성을 보였으며, PAE가 함유된 시험체가 EVA가 함유된 시험체보다 압축강도 기울기가 크게 나타나는 것을 확인하였다. 하지만 현재 PCM의 고온에 따른 역학적특성에 관한 연구는 상당히 미흡하기 때문에 본 연구와 더불어 보수방법 등에 대한 기초적인 연구가 반드시 선행되어야 할 것으로 판단된다.

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