Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Effect of VAE Type Powder Polymer on Strength Properties of High Strength Polymer Cement Mortars

VAE 분말수지가 고강도 폴리머 시멘트 모르타르의 강도 특성에 미치는 영향

  • Choi, Jung-Gu (Department of Architectural Engineering, Korea National University of Transportaion) ;
  • Lee, Gun-Cheol (Department of Architectural Engineering, Korea National University of Transportaion) ;
  • Ko, Kyung-Taek (Construction Fusion Research Institute, Korea institute of Civil Engineering and Building Technology) ;
  • Ryu, Gum-Sung (Construction Fusion Research Institute, Korea institute of Civil Engineering and Building Technology)
  • Received : 2015.04.07
  • Accepted : 2015.05.08
  • Published : 2015.06.20
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Abstract

In construction materials area, many research on polymer for cement-based materials have been conducted. In spite of these research, general research scope is limited to the normal strength range, and thus in this research, for both normal and high strength range mixtures, the strength and mechanical properties of high strength cement mortar incorporating Vinyle Acetate-Ethylene(VAE) type powder polymer are evaluated. As a result of experiment, in the case of high strength mixture, as the amount of VAE polymer addition was increased the compressive and flexural strengths were decreased while the tensile and bonding strengths were increased because of the formation of the polymer membrane inside of the mortar matrix.

현재 건축분야에서는 시멘트 혼화용 폴리머를 혼입한 연구가 진행되고 있는 상황이다. 하지만 대부분의 연구는 보통강도 배합을 대상으로 연구가 진행되고 있다. 따라서 본 연구에서는 고강도 배합과 보통강도 배합에 VAE 계열의 분말형 폴리머를 혼입하여 고강도 폴리머 시멘트 모르타르의 강도 특성 및 역학적 성질을 검토하고자 하였다. 실험결과, 고강도 배합의 경우 VAE 폴리머 적용 시 폴리머 혼입양이 증가할수록 보통강도 배합에 비해 압축강도 및 휨강도가 감소하는 단점을 나타내지만, 폴리머필름 형성으로 인하여 인장강도 및 부착강도가 향상되는 장점을 나타내었다.

Keywords

References

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