Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Development of Polymer-Concrete Composite(I) - Physical Properties of Polymer-Cement Concrete Composites -

폴리머-콘크리트 복합재료 개발(I) - 폴리머-시멘트 콘크리트의 물성 -

  • Hwang, Eui-Hwan (Dept. of Industrial Chem., Cheon-an Nat'l Tech. College) ;
  • Kil, Deog-Soo (Dept. of Industrial Chem., Cheon-an Nat'l Tech. College) ;
  • Oh, In-Seok (Dept. of Polymer Eng., Chung-nam National Univ.)
  • 황의환 (천안공업전문대학 공업화학과) ;
  • 길덕수 (천안공업전문대학 공업화학과) ;
  • 오인석 (충남대학교 공과대학 고분자공학과)
  • Received : 1997.08.18
  • Accepted : 1997.10.18
  • Published : 1997.12.10
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Abstract

Test specimens of polymer-cement concrete composites were prepared using styrene-butadiene rubber(SBR) latex, ethylenevinyl acetate(EVA) and polyacrylic ester(PAE) emulsions as polymer dispersions in cement modified system at constant slump($10{\pm}0.5cm$), then compressive and flexural strengths water absorption, pore size distribution, and microstructures were investigated. Compressive and flexural strengths of these composites were remarkably improved with an increase of polymer-cement ratio. These composites had a desirable pore size distribution against frost damage due to a small capillary pore volume. Continuous polymer film was able to form in higher than 15% of polymer cement ratio.

폴리머 혼화제로서 styrene-butadiene rubber(SBR)라텍스, ethylene-vinyl acetate(EVA)에멀젼 및 polyacrylic ester(PAE)에멀젼을 사용하여 동일한 스럼프에서 폴리머-시멘트비를 변화시켜 공시체를 제조하여, 압축과 휨강도시험, 흡수시험, 세공분포측정 및 미세구조 관찰 등을 실시하였다. 그 결과 폴리머-시멘트비의 증가와 더불어 압축과 휨강도 모두 향상되었고, 동해에 큰 영향을 주는 모세관 공극범위의 세공량은 감소되었으며, 폴리머 시멘트비 15wt% 이상에서 연속적인 폴리머필름이 형성되었다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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