钢纤维自密实混凝土抗离析性能试验研究  

Experimental Study on Anti-segregation Performance of Steel Fiber Self-compacting Concrete

作　　者：张春晓[1] 蔡灿柳[1] 丁庆军[2] 

机构地区：[1]总参工程兵科研三所,河南洛阳471023 [2]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《施工技术》2011年第6期48-50,共3页Construction Technology

摘　　要：通过对钢纤维自密实混凝土流变特性与分层特性的理论分析,制定了其工作性能控制方法。在工作性能控制方法指导下,配制了钢纤维自密实混凝土,通过试验验证其流动性、填充性,并通过自制试验方法着重研究了其抗离析性能:垂直浇注3根钢纤维自密实混凝土圆柱,分别进行骨料筛分、强度分段、钢纤维分散均匀性试验研究。试验证明:采用工作性能控制方法配制出的钢纤维自密实混凝土流动性、填充性良好,在一次浇注高度4m范围内,粗骨料和钢纤维分散均匀,抗压强度均匀一致。By theoretical analysis of rheological and stratified properties of self-compacting concrete, control method is developed. Under the guide of this method, steel fiber self-compacting concrete is mixed, and its performances are detected. Three steel fiber reinforced self-compacting concrete columns are used for the experimental studies of the screening of aggregate, segmentation for strength and dispersible uniformity of steel fiber. The results show that this method is excellent for fluidity and fallibility of steel fiber self-compacting concrete. And in the pouring height of 4 meters, coarse aggregate and steel fiber uniformly disperses, and the strength is uniform.

关 键 词：自密实混凝土 拌合料 钢纤维 骨料 均匀性 

分 类 号：TU528.59[建筑科学—建筑技术科学]