摘要
针对活性粉末混凝土(RPC)研究与应用中存在的成本高、能耗大等问题,以钢渣粉、超细粉煤灰、硅灰等作活性细掺料、细河砂作集料,进行含钢渣粉RPC的研制。研究分析了水胶比、砂胶比及钢纤维掺量等配比参数对含钢渣粉RPC强度的影响,确定了含钢渣粉RPC的适宜水胶比、胶砂比及钢纤维掺量。按这些配合比参数在一定的胶凝材料组成下,经90℃的热养护可制备出抗压强度188 MPa以上、抗折强度32 MPa以上的含钢渣粉RPC。
Aiming at the main problems in application of RPC,i.e.,high production costs and energy consumption,steel slag powder（SS）as well as ultra-fine fly ash（UFFA）and silicon fume（SF）are used as reactive powder component to product RPC,and meanwhile,fine river sand is used as aggregate instead of quartz sand.The influence of mixing proportion,such as water-binder ratio（W/B）,sand-binder ratio（S/B）and the amount of steel fibers are studied in this paper.The results demonstrated that RPCs whose compressive and flexural strength achieved about 188 MPa and 32 MPa respectively would be obtained according to those mixing parameters and cementitious materials with a certain composition by cured in 90℃ for a appropriate duration.
出处
《公路》
北大核心
2011年第4期160-163,共4页
Highway
基金
国家"十五"科技攻关项目
项目编号2003BA652C
三峡大学人才科研启动基金
项目编号KJ2009B062
关键词
钢渣粉
活性粉末混凝土
水胶比
砂胶比
钢纤维掺量
强度
steel slag powder
reactive powder concrete
water-binder ratio（W/B）
sand-binder ratio（S/B）
steel fibers
strength
