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http://dx.doi.org/10.7855/IJHE.2011.13.1.239

Numerical Analysis of Fiber Reinforced Concrete Base Subjected to Environmental Loads  

Cho, Young-Kyo (경희대학교 토목공학과)
Kim, Seong-Min (경희대학교 공과대학 토목공학과)
Park, Jong-Sub (한국건설기술연구원 기반시설연구본부)
Park, Young-Hwan (한국건설기술연구원 기반시설연구본부)
Publication Information
International Journal of Highway Engineering / v.13, no.1, 2011 , pp. 239-249 More about this Journal
Abstract
The behavior of the fiber reinforced concrete (FRC) base under environmental loads was analyzed numerically as a fundamental study to develop a high structural and functional performance composite pavement system in which the base was formed using FRC and the asphalt or cement concrete surface was placed on it. A two-dimensional finite element model of the FRC base was developed and the sensitivity study was performed with the variables including slab thickness of base, thermal expansion coefficient, elastic modulus, and tensile and compressive strengths. The crack spacing and crack width were selected as representatives of the base behavior. The effects of the selected variables on the crack spacing and crack width were analyzed and the sensitive variables were determined. The results of this study could be useful to determine the optimal material properties of the FRC base for combining well with the surface materials.
Keywords
fiber reinforced concrete; base; environmental load; finite element; crack spacing; crack width;
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