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Title |
Setting Shrinkage, Coefficient of Thermal Expansion, and Elastic Modulus of UP-MMA Based Polymer Concrete
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Keywords |
폴리머 콘크리트 ; 경화수축 ; 열팽창계수 ; 극한변형률 ; 탄성계수 polymer concrete ; setting shrinkage ; thermal expansion ; ultimate strain ; elastic modulus |
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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 82.6×10-4, 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 31.2×10-6/oC, 2.8 to 3.3×104 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.
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