Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Dissolution Resistance Property of Modified Asphalt Waterproofing Sheet Coated with Polyamide Film by SEM-EDX Analysis

폴리아마이드 필름이 코팅된 개량 아스팔트 방수시트의 SEM-EDX 분석을 통한 유기용제 저항성 확인

  • An, Ki-Won (Graduate School, Seoul National University of Science and Technology) ;
  • Yoo, Jae-Yong (Residential Construction, Lotte Engineering and Construction) ;
  • Oh, Sang-Keun (Department of Architectural Engineering, Seoul National University of Science and Technology)
  • Received : 2017.07.26
  • Accepted : 2017.09.22
  • Published : 2017.10.20
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Abstract

In the composite waterproofing method in which a polyurethane coating waterproofing material is applied on the modified asphalt waterproofing sheet, the organic solvent is diluted in the coating waterproofing material in order to improve the workability. However, since the organic solvent is not volatilized before the curing of the polyurethane coating waterproofing material, the organic solvent causes dissolution of asphalt layer, thereby causing oil leakage. As a result, a polyamide film having a high dissolution resistance property was laminated on modified asphalt sheet, and through testing the dissolution resistance was visually confirmed and quantitative analysis of the polyamide film by SEM-EDX analysis was also used to confirmed the dissolution resistance of the polyamide film.

개량 아스팔트 방수시트 위에 폴리 우레탄 도막방수재가 도포되는 복합방수공법의 경우 시공성 향상을 위하여 도막 방수재에 유기용제를 희석해 사용하고 있지만, 유기용제가 폴리 우레탄 도막방수재의 완전 경화 전에 전부 휘발되지 못하고 시트재와 도막재 사이에 잔류하게 되고 이는 아스팔트 층을 융해시켜 방수층 손상 및 누수문제를 발생시켰다. 이에 용제에 의한 융해 문제를 개선하기 위해 내용제성이 강한 PA 필름을 개량 아스팔트 시트에 코팅(적층)하였고, 그 결과 융해에 대한 안전성을 육안을 관찰하였고, SEM 분석, EDX 분석을 통하여 PA 필름에 대한 내용제성을 정량적으로 확인하였다.

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References

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