摘要
不同活性粉末混掺取代部分水泥,在普通成型及标准养护条件与蒸养条件下,比较了矿渣与粉煤灰双掺情况、矿渣与粉煤灰和硅灰三掺情况下对水泥基抗折性能的改善效果.通过流动度、抗压强度及抗折强度试验,分析了双掺和三掺活性粉末水泥基的基本力学性能和物化规律.通过比较不同活性粉末的不同混掺比例的正交试验对水泥基力学性能的影响,分析了活性粉末的复合效应.在标准养护条件下,通过粉煤灰、矿渣和硅灰的复配,在控制成本的情况下,配制出C100,折压比0.3,抗折强度达到32.8 MPa的高抗折水泥基体.
Under the common molding ,normal and steaming curing conditions,the flexural properties of cement based materials mixing different reactive powder were improved. The improving effects of two kinds of slag and fly ash, and three kinds of slag, fly ash and silica fume were compared . Through the fluidity, compressive and flexural properties tests, the basic mechanical properties and physical chemistry of mixing the two and three kinds of reactive powder cement based materials were analyzed. The orthogonal experi- ments with different reactive powder mixing different ratio on the basic mechanical properties of cement based materials was studied. And the composite effects of the reactive powder were analyzed. Under the standard curing and cost control conditions, the high flexural properties of cement based materials with the strength up to C100, the ration of flexural and compressive strength up to 0.3, and the flexural strength up to 32.8 MPa were prepared by mixing the slag, fly ash and silica fume.
出处
《湘潭大学自然科学学报》
CAS
北大核心
2015年第4期10-15,41,共7页
Natural Science Journal of Xiangtan University
基金
辽宁省交通科研项目(201412-1)
关键词
活性粉末
抗折强度
水泥基体
复合效应
reactive powder
flexural strength
cement based materials
composition effect
