Anti-cracking Property of EVA-modified Polypropylene Fiber-reinforced Concrete Under Thermal-cooling Cycling Curing

作     者：LIU Sifeng[[ YANG Siyu KONG Yaning WAN Tingting ZHAO Guorong 刘斯凤;YANG Siyu;KONG Yaning;WAN Tingting;ZHAO Guorong

作者机构：School of Materials Science and EngineeringTongji UniversityShanghai 201804China Key Laboratory of Advanced Civil Engineering Materials of Ministry of EducationTongji UniversityShanghai 200092China Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of EducationTongji UniversityShanghai 200092China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2019年第34卷第5期

页      面：1109-1118页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0702[理学-物理学] 

基　　金：Funded by National Key R&D Program(No.2016YFC0701003)of China the Fundamental Research Funds for the Central Universities 

主　　题：anti-cracking property EVA-modified polypropylene fiber-reinforced concrete thermal-cooling cycling curing 

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.