不掺硅粉的活性粉末混凝土配合比试验  

Experiment research on proportions of reactive powder concrete without silica fume

作　　者：肖锐[1] 邓宗才[1] 兰明章[2] 申臣良 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京工业大学材料科学与工程学院,北京100124 [3]北京正华混凝土有限公司,北京100061

出　　处：《吉林大学学报（工学版）》2013年第3期671-676,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(50678011)

摘　　要：在遵循活性粉末混凝土(RPC)基本配制原则的基础上,不掺入硅粉,采用超细水泥、普通水泥、掺合料(粒化高炉矿渣和粉煤灰)、砂、水、减水剂、钢纤维进行配合比试验。试验结果表明:不采用硅粉制备RPC是可行的;在制备RPC时,将超细水泥与适量掺合料混掺后,可以在保证材料强度和流动性的同时提高材料的经济性;用普通水泥取代大部分超细水泥后,材料的性能仍可保证,且更加经济。另外,研究了钢纤维掺量对材料性能(抗压、抗折、流动性及弯曲韧性)的影响规律。Based on the basic principles for producing Reactive Powder Concrete （RPC）, a new kind of RPC with compositions of superfine cement, Portland cement, admixtures （ground granulated blast furnace slag and fly ash）, sand, water, superplasticizer, steel fibers, without silica fume was produced and tested. Experiment results show that it is feasible to produce RPC without the admixture of silica fume. The strength, fluidity and cost of RPC are satisfied with appropriate proportion of superfine cement and admixtures. The superfine cement in RPC can be partly replaced by Portland cement to reduce the cost. The effect of the amount of steel fibers on the mechanical properties, such as compression resistance, breaking resistance, fluidity and flexural toughness, of the RPC was analyzed.

关 键 词：建筑材料 活性粉末混凝土 配合比 超细水泥 掺合料 性能 

分 类 号：TU528[建筑科学—建筑技术科学]