骨料对混凝土材料冲击压缩行为的影响

Influence of Aggregate on the Compression Properties of Concrete under Impact

利用大尺寸 Hopkinson压杆 ,以实验数据为依据 ,研究了四种不同骨料尺寸的普通混凝土材料和两种不同配比的钢纤维增强混凝土材料在冲击载荷下的压缩强度 ,从唯象的角度分析了骨料性质及其粒径对混凝土材料动态压缩性能的影响及可能的力学机理 ,为在工程上更好地利用混凝土材料提供一定的理论和实验的支持 .

By experiments on Hopkinson pressure bar (SHPB), the dynamic mechanical behavior for four kinds of concrete as well as two kinds of fiber reinforced concrete are investigated. Based on the experimental data, a phenomenological analysis is made to study the influence of different ingredients on the uniaxial compressive strength of concrete under impact. The results can provide both theoretical and experimental reference for the concrete being used in engineering construction.