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Setting Shrinkage, Coefficient of Thermal Expansion, and Elastic Modulus of UP-MMA Based Polymer Concrete

UP-MMA 폴리머 콘크리트의 경화수축, 열팽창계수 및 탄성계수

  • Yeon, Kyu-Seok (Dept. of Regional Infrastructure Engineering, Kangwon National University) ;
  • Yeon, Jung-Heum (Center for Transportation Research at the University of Texas at Austin)
  • 연규석 (강원대학교 지역건설공학과) ;
  • 연정흠 (미국 텍사스대 교통연구센터)
  • Received : 2012.05.07
  • Accepted : 2012.07.04
  • Published : 2012.08.31

Abstract

This study examines setting shrinkage, coefficient of thermal expansion, and elastic modulus of unsaturated polyester( UP)-methyl methacrylate(MMA) polymer concrete, which is generally used for repair of portland cement concrete pavement and manufacturing of precast products. In this study, a series of laboratory test were conducted with variables such as UP-MMA ratio, shrinkage reducing agent (SRA) content, and test temperature. The results showed that the setting shrinkage ranged from 29.2 to $82.6{\times}10^{-4}$, which was significantly affected by test temperature. Moreover, the findings revealed that the coefficient of thermal expansion, elastic modulus and ultimate strain of UP-MMA based polymer concrete ranged from 21.6 to $31.2{\times}10^{-6}/^{\circ}C$, 2.8 to $3.3{\times}10^4$ MPa, and 0.00381 to 0.00418, respectively. The results of this study will be used as important data for design and application of UP-MMA based polymer concrete.

Acknowledgement

Supported by : 농림수산식품부

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