超高性能混凝土抗侵彻及抗爆炸性能研究  

Properties of ultra-high performance concrete subjected to penetration and explosion

作　　者：赖建中[1] 过旭佳[1] 朱耀勇[1] 

机构地区：[1]南京理工大学材料科学与工程学院,江苏南京210094

出　　处：《河北工业大学学报》2014年第6期50-53,共4页Journal of Hebei University of Technology

基　　金：国家自然科学基金(51278249;50808101)

摘　　要：采用不同品种纤维增强技术,通过大掺量超细工业废渣取代水泥熟料,制备出了超高性能纤维混凝土,研究了超高性能混凝土靶体抗侵彻和抗爆炸性能,测试了不同靶体的侵彻深度和爆炸损伤.研究表明通过钢纤维和玄武岩纤维混杂增强技术,显著提高了超高性能混凝土的抗侵彻和抗爆炸性能.掺入玄武岩粗骨料的混凝土第二次侵彻深度有所降低,但含粗骨料的混凝土在侵彻作用下开裂情况较不含粗骨料的混凝土严重,混杂纤维增强的超高性能混凝土具备更加优异的抗爆炸性能.Ultra-high performance concrete （UHPC） with fibers reinforcement was prepared by replacing cement with large amount of ultra-fine industrial waste powder. The properties of UHPC were studied under penetration and explosion. The penetration depth and explosion damage of different UHPC targets were measured. Results show that the UHPC resistance to penetration and explosion is improved significantly by hybrid rein forcement of steel and basalt fibers. The second penetration depth of UHPC with basalt coarse aggregates is decreased and the damage of UHPC with basalt coarse aggregates is more than that of UHPC without basalt coarse aggregates. The hybrid fibers reinforced UHPC has much better ability to resist blast.

关 键 词：超高性能混凝土 侵彻 爆炸 损伤 

分 类 号：TU528.572[建筑科学—建筑技术科学]