机制砂自密实混凝土研制  

Self-compacted Concrete of Machine-made Sand

作　　者：杜毅[1] 李贵平[1] 贾朝政[1] 唐虹[1] 

机构地区：[1]贵州大学土木建筑工程学院,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》2007年第4期88-91,96,共5页Journal of Guizhou University of Technology(Natural Science Edition)

摘　　要：研制中对混凝土原材料配合比进行了优选,将优选出的混凝土进行了下述试验:坍落度、扩展度、间隙通过性、抗分离性及抗压强度等测试,用较多的数据,说明了贵州地区人工机制砂、人工碎石尽管自身条件差,但经过适当的配比,是能够配制出满足工程需要的自密实混凝土。This research optimally selects the concrete using raw materials in optimum mixing proportion,and the following experiments are conducted for the optimally- selected concrete：slump degree, dispersion degree, passing capacity of gaps, anti - separation property and compressive strength. The abundant data reveals that, after appropriate mixing, the artificially machine- made sand and crushed artificial gravels in Guizhou area can prepare the self- compacted concrete which satisfies the requests of projects in spite of their poor qualities.

关 键 词：自密实混凝土 配制 原材料优选 工作性 

分 类 号：TU528[建筑科学—建筑技术科学]