Anti-cracking Property of EVA-modified Polypropylene Fiber-reinforced Concrete Under Thermal-cooling Cycling Curing
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2019年第5期
论文作者：刘斯凤 YANG Siyu KONG Yaning WAN Tingting ZHAO Guorong
文章页码：1109 - 1118
摘 要：In order to investigate the synergistic effect of re-dispersible powder-ethylene-vinyl acetate copolymer（EVA） and polypropylene fiber on the crack resistance of concrete under thermal fatigue loading, the compressive strength, ultimate tensile strength, ultimate tensile strain and tensile modulus of elasticity were tested. In addition, ultrasonic method and scanning electron microscope analysis were used to explain the microstructure mechanism. The results show that polypropylene fiberreinforced concrete presents a better performance on crack resistance than ordinary concrete, and the synergism of EVA and polypropylene fiber can improve the anti-cracking ability of concrete further.
刘斯凤1,2,3，YANG Siyu1，KONG Yaning1，WAN Tingting1，ZHAO Guorong1
1. School of Materials Science and Engineering, Tongji University2. Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University3. Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education, Tongji University
摘 要：In order to investigate the synergistic effect of re-dispersible powder-ethylene-vinyl acetate copolymer（EVA） and polypropylene fiber on the crack resistance of concrete under thermal fatigue loading, the compressive strength, ultimate tensile strength, ultimate tensile strain and tensile modulus of elasticity were tested. In addition, ultrasonic method and scanning electron microscope analysis were used to explain the microstructure mechanism. The results show that polypropylene fiberreinforced concrete presents a better performance on crack resistance than ordinary concrete, and the synergism of EVA and polypropylene fiber can improve the anti-cracking ability of concrete further.
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