超高性能混凝土钢纤维-基体界面黏结性能研究综述  

Steel Fiber-Matrix Interfacial Bond in Ultra-High Performance Concrete:A Review

作　　者：邓毓琳 张祖华 史才军 吴泽媚 张超慧 Yulin Deng;Zuhua Zhang;Caijun Shi;Zemei Wu;Chaohui Zhang(Key Laboratory for Green&Advanced Civil Engineering Materials and Application Technology of Hunan Province,College of Civil Engineering,Hunan University,Changsha 410082,China;Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,School of Materials Science and Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]Key Laboratory for Green&Advanced Civil Engineering Materials and Application Technology of Hunan Province,College of Civil Engineering,Hunan University,Changsha 410082,China [2]Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,School of Materials Science and Engineering,Tongji University,Shanghai 201804,China

出　　处：《Engineering》2023年第3期215-232,共18页工程（英文）

基　　金：the National Natural Science Foundation of China(51878263,U2001225,and 51638008);the National Key Research and Development Program of China(2018YFC0705400).

摘　　要：超高性能混凝土(UHPC)是一种相对较新的水泥混凝土复合材料,由于其优异的机械强度和耐久性,在基础设施建设中具有巨大的应用潜力。钢纤维与基体的界面黏结性能是决定UHPC其他力学性能的主要因素,包括抗拉、抗折、抗压强度和破坏模式(断裂行为)。本文通过讨论并比较多种纤维拉拔测试方法和分析模型,全面综述了UHPC的纤维-基体黏结行为的研究进展;详细确定并讨论了影响纤维-基体黏结的参数,包括纤维的几何形状和方向、表面处理、基体的组成和强度。最后,基于现有研究,对未来UHPC增强方法和测试细节提出了建议。Ultra-high performance concrete(UHPC)is a relatively new cementitious concrete composite with significant application potential in infrastructure construction because of its excellent mechanical strength and durability.The steel fiber-matrix interfacial bond is the main factor that governs other mechanical properties of UHPC,including tensile,flexural,and compressive strengths and failure mode(fracture behavior).This paper presents a comprehensive review on the research progress of fiber-matrix bond behaviors of UHPC by discussing and comparing a range of fiber pullout testing methods and analytical models.The parameters of the fiber-matrix bond,including the geometry and orientation of fibers,surface treatment,and composition and strength of the matrix,are identified and discussed in detail.Lastly,recommendations for future research related to UHPC strengthening methods and testing details are provided based on recent progress.

关 键 词：Ultra-high performance concrete Interfacial bond Steel fiber Pullout behavior 

分 类 号：TU528[建筑科学—建筑技术科学]