Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Fundamental Properties Analysis for Thixotropic Cement-Based Materials Using PVA and Borax

PVA 및 붕사를 사용한 고요변성 시멘트 계열 재료 제조를 위한 기초 물성 분석

  • Lee, Hyang-Sun (Department of Architectural Engineering, Gyeongsang National University) ;
  • Lee, You-Jung (Department of Architectural Engineering, Gyeongsang National University) ;
  • Lee, Young-Jun (Department of Architectural Engineering, Gyeongsang National University) ;
  • Han, Dongyeop (Department of Architectural Engineering, and Engineering Research Institute, Gyeongsang National University)
  • Received : 2020.02.23
  • Accepted : 2020.05.11
  • Published : 2020.06.20
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Abstract

The aim of the research is to provide thixotropy on cement-based materials. For this purpose, the linkage between polyvinyl alcohol (PVA) and borax was used. Namely, adding the suspensions of PVA and borax in cement paste, the thixotropy of cement paste was confirmed. The thixotropy of cement-based materials can have various advantages on construction process, especially, the placing method using pipe can have advantages. As a result of this research, the linkage between PVA and borax is valid inside of cement paste. Therefore, using PVA and borax, it is confirmed that the cement-based materials can have thixotropy with this method, and it can be expected to contribute on developing new method of placing cement-based materials with thixotropy.

본 연구의 목적은 시멘트 계열재료에 요변성을 부여하기 위하는 것이다. 이를 위해 PVA와 붕사의 결합을 이용하였다. 즉, PVA와 붕사 수용액을 시멘트 페이스트에 첨가하여 PVA 및 붕사의 결합에 의한 요변성 발현여부를 확인하였다. 시멘트 계열 재료에서 요변성 발현은 시공과정에서 다양한 이점을 확보할 수 있으며 특히 최근 주된 타설 방법인 관을 사용한 타설 방법에서 유리하게 작용할 수 있다. 본 연구의 결과로써 시멘트 페이스트 내부에서 PVA와 붕사의 결합이 유효하다는 것을 알 수 있었다. 결과적으로 시멘트 계열 재료에 대하여 PVA와 붕사를 이용하여 요변성을 부여할 수 있었다. 향후 본 연구의 결과를 이용하여 다양한 형태의 시멘트 계열재료의 시공성 개선에 도움이 될 것으로 기대한다.

Keywords

References

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