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Yu R.,China University of Petroleum - East China | Zhou J.,China University of Petroleum - East China | Li Z.,China University of Petroleum - East China | Ran Y.,Shandong Chemical Planning and Design Institute SCPDI
2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings | Year: 2011

In order to study polypropylene fiber concrete's fracture properties, the polypropylene fiber concrete with different fiber content and size under three-point bending was researched, and the fracture energy, unstable fracture toughness and critical crack tip opening displacement of the polypropylene fiber concrete in modified double-K criterion parametric model were also analyzed. The result indicated that any influence coefficient of the different specimen sizes was approximately similar with different fiber volume ratio; polypropylene fiber had biggish enhancement effect to the concrete, and there was a optimumfiber content of 0.9kg/m3. © 2011 IEEE.

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