作　　者： ; ; ;

机构地区： 郑州大学

出　　处： 《工业建筑》 2011年第1期101-104,119,共5页

摘　　要： 通过矿渣微粉纤维混凝土高温后立方体抗压和轴心抗压试验,分析温度、矿渣微粉掺量、钢纤维体积率、聚丙烯纤维掺量和混凝土强度等级等因素对混凝土高温后抗压强度的影响。结果表明,随着温度升高,高温后矿渣微粉纤维混凝土立方体抗压强度和轴心抗压强度不断降低,且逐渐趋于一致;矿渣微粉纤维混凝土高温后抗压强度随矿渣微粉、钢纤维和聚丙烯纤维掺量的增加而增大,但增大幅度不同。 Through the compressive experiments on the cubic and prismatic specimens respectively,the influences of temperature,slag powder content,steel fiber volume ratio,polypropylene fiber content and concrete strength grade on compressive strength after high temperature were analyzed.The results show that the cubic and prismatic compressive strength of the fiber reinforced concrete with slag powder reduces along with the rising of temperature,and the cube compressive strength is close to the axial compressive strength gradually.Furthermore,the cubic and prismatic compressive strength of fiber reinforced concrete with slag powder increases with the increasing of slag powder content,steel fiber volume ratio and polypropylene fiber content after the action of high temperature;but the rates of increase are not different.

关 键 词： 高温 矿渣微粉 纤维混凝土 抗压强度

领　　域： [建筑科学]