UHPC与普通混凝土界面黏结性能研究综述

doi:10.3969/j.issn.1671-7775.2020.04.001

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摘要对比分析了超高性能混凝土（UHPC）与普通混凝土（NC）黏结界面的力学性能和耐久性能，评述了UHPC-NC界面黏结影响因素、力学性能、耐久性能3方面的研究成果.对UHPC-NC界面力学性能产生影响的纤维增强机理、约束收缩机理及冻融损伤机理进行了研究，分类讨论了黏结面力学试验和耐久性试验方法及试验结果.阐述了UHPC-NC界面破坏模式和力学性能研究成果，并对UHPC加固性能劣化NC桥梁进行展望.结果表明：UHPC纤维和界面处理情况对界面黏结性能影响显著；UHPC-NC黏结界面的力学性能和耐久性能明显优于NC-NC界面，耐久性能表现最优越.

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	周建庭1
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	周璐3
	杨俊1
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	王宗山1

关键词 ： , 加固材料, 超高性能混凝土, 界面黏结, 力学性能, 耐久性能

Abstract：The mechanical properties and durability of the bonding interface between ultra-high performance concrete (UHPC) and normal concrete (NC) were compared and analyzed, and the research results in three aspects of influential factors, mechanical properties and durability of UHPC-NC bonding interface were also reviewed. The effects of fiber-reinforced mechanism, restrained shrinkage mechanism and freeze-thaw damage mechanism on the mechanical properties of UHPC-NC interface were investigated, and the bonding interface mechanical testing and durability testing method and test results were classified and discussed. The research results of UHPC-NC interface failure mode and mechanical properties were described, and the outlook of reinforcing deteriorative NC bridges by UHPC was also forecasted. The results show that UHPC fiber and interface treatment have significant effects on the interface bonding performance. The mechanical properties and the durability of the UHPC-NC bonding interface are significantly better than those of the NC-NC interface, and the durability of UHPC-NC bonding interface is the most superior.

Key words： reinforcement material UHPC interfacial bonding mechanical properties durability

收稿日期: 2018-08-02

基金资助:国家重点研发计划项目（2017Y项目FC0806007）；国家杰出青年科学基金资助项目（51425801）；贵州交通厅科技项目（2018-123-001）；重庆市社会民生类重点研发项目（cstc2018jscx-mszdX0084）；重庆市研究生科研创新项目（CYS17209）

作者简介: 周建庭（1972—），男，浙江金华人，教授，博士生导师（jtzhou@cqjtu.edu.cn），主要从事桥梁检测加固、结构损伤与健康监测研究. 周璐（1994—），女，广西桂平人，助理工程师（923402074@qq.com），主要从事桥梁新材料、评估加固研究.

引用本文:

周建庭1,2，周璐3，杨俊1,2，王宗山1. UHPC与普通混凝土界面黏结性能研究综述[J]. 江苏大学学报（自然科学版）, 2020, 41(4): 373-381. ZHOU Jianting1,2, ZHOU Lu3, YANG Jun1,2, WANG Zongshan1. Summarization on bonding behaviors of ultra-high performance concrete and normal concrete[J]. Journal of Jiangsu University(Natural Science Eidtion) , 2020, 41(4): 373-381.

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