钢纤维高强混凝土的配合比设计

Mix Proportion Design of the Steel Fiber High-Strength Concrete

结合钢纤维高强混凝土的工作特点,对钢纤维高强混凝土的原材料选择要求与配合比设计进行了阐述.根据设计的钢纤维高强混凝土配合比,浇筑了168个150 mm×150 mm×150 mm立方体、30个100 mm×100 mm×400 mm和60个150 mm×150 mm×450 mm棱柱体钢纤维高强混凝土试件,并测试了其基本力学指标.结果表明,通过材料优选和适宜的配合比设计,采用常规制备工艺可以配制出拌和性能良好及满足强度要求的钢纤维高强混凝土.

Combined with the working characteristic of the steel fiber high-strength concrete CSFHSC）, requirements on raw material selection and mix proportion design for the SFHSC are elaborated. According to the mix proportion, the 168 concrete specimens with 150 mm×150 mm×150 mm, 30 concrete specimens with 100 mm×100 mm×400 mm and 60 concrete specimens with 150 mm×150 mm×450 mm are cast. The basic mechanical index for the SFHSC is tested. The result show that through the good selection on material and optimal design, the SFHSC which meets to the demands with respect to mobility and strength can be manufactured by convenient casting process.