UHPC防护工程材料研究进展  

Progress of UHPC protective engineering material research

作　　者：赖建中[1] 何勇[1] 任辉启 LAI Jianzhong;HE Yong;REN Huiqi(Institute of Engineering Safety Protection Technology,Nanjing University of Science and Technology,Nanjing 210094,China;Defense Engineering Institute,AMS,PLA,Beijing 100850,China)

机构地区：[1]南京理工大学工程安全防护技术研究所,江苏南京210094 [2]军事科学院国防工程研究院,北京100850

出　　处：《防护工程》2023年第1期1-7,共7页Protective Engineering

基　　金：国家自然科学基金面上项目(52078253,51678308)

摘　　要：现代战争对防护工程材料性能提出了更高要求。超高性能混凝土(UHPC)作为一种高强度的建筑材料,其抗压强度大于150 MPa,抗折强度大于30 MPa,同时具备抗多次打击能力,相较于普通混凝土其防护性能提升巨大。介绍了UHPC材料在对抗多次冲击、侵彻、爆炸和侵爆耦合条件下的防护性能及UHPC材料的防护机理。为进一步提高UHPC材料的抗侵彻性能,提出功能梯度设计方法,使用高强骨料和纤维对UHPC材料进行梯度强化,并从实验方法、数值仿真、理论研究等3个方面概述功能梯度UHPC的设计理念和研究进展。Modern warfare requires protective engineering materials with higher performance. Ultra-high-perfor-mance concrete(UHPC), as a high strength construction material, has a compressive strength of more than 150 MPa and flexural strength of more than 30 MPa. Meanwhile, it has the multiple impact resistance capability, which significantly improves the protective performance compared with that of normal concrete. This paper first described the protective performance and mechanism of the UHPC when countering the multiple impact, penetration, explosion and penetration-explosion coupling;then, proposed a gradient functional design method in order to further improve the penetration resistance of the UHPC that uses high strength aggregates and fibers for gradient reinforcement;and finally overviewed the concept and research progress of the gradient functional design of UHPC from the aspects of experimental method, numerical simulation and theoretical model.

关 键 词：超高性能混凝土 多次冲击 侵彻 爆炸 功能梯度设计 

分 类 号：TU528[建筑科学—建筑技术科学]