SiO_2粉体对硅酸盐混凝土改性的研究  

Study on Modification of Silicate Concrete With Silica Powder

作　　者：程军[1,2] 祝保林 CHENG Jun;ZHU Bao-lin(School of Chemistry and Environment,Weinan Normal University, Shaanxi Weinan 714099, China;Key Laboratory for Ecology and Environment of River Wetlands in Shaanxi Province, Shaanxi Weinan 714099, China)

机构地区：[1]渭南师范学院化学与环境学院,陕西渭南714099 [2]陕西省河流湿地生态与环境重点实验室,陕西渭南714099

出　　处：《当代化工》2019年第3期474-476,480,共4页Contemporary Chemical Industry

摘　　要：硅酸盐混凝土是建筑工程领域广泛运用的建筑材料,但是随着建筑施工的要求的迚一步提升,硅酸盐混凝土的自身缺陷日益明显,这导致其应用范围推广受限。采用添加SiO_2粉体对硅酸盐混凝土凝结时间性、安固性和抗折性的实验研究,以期在试验后硅酸盐水泥净浆、水泥胶砂、混凝土,以及浆体流动性,各项力学性都能有所提升。Cement concrete is a building material widely used in the field of construction engineering. However, with the further increase of the requirements for building construction, the self-defect of cement concrete has become increasingly obvious, which has limited its application and promotion. In this experiment, SiO2 powders were used to modify the cement concrete, in order to improve the performance of portland cement paste, cement mortar and concrete, such as setting time, mechanical performance, slurry fluidity and so on.

关 键 词：SiO2粉体 硅酸盐混凝土 混凝土改性 

分 类 号：TQ172[化学工程—水泥工业]