硅酸盐通报2018，Vol.37Issue(4)：1174-1180,7.
苯丙乳液改性砂浆的优化配比及其性能研究
Optimum Proportion and Performance of Styrene-acrylic Emulsion Modified Mortar
邢小光 1许金余 1白二雷 2王谕贤1
作者信息
- 1. 空军工程大学机场建筑工程系,西安 710038
- 2. 西北工业大学力学与土木建筑学院,西安 710072
- 折叠
摘要
Abstract
In order to solve the problems of engineering seepage and concrete repair, the modified effect of styrene acrylic emulsion on cement mortar was studied.The results show that styrene acrylic emulsion can improve the flexural strength, tensile strength and bond strength of mortar, and the maximum increase is 42.8%,61.8%and 1.91 MPa respectively.The influence of styrene acrylic emulsion on the water absorption rate of mortar is obvious.The greater the amount of emulsion is, the smaller the water absorption rate is.Styrene acrylic emulsion can improve the frost resistance, impermeability, carbonization resistance,corrosion resistance and shrinkage of mortar.The age of 42 d,the shrinkage of modified mortar is 13.6%less than that of ordinary mortar.The seepage pressure of the modified mortar is 2.4 MPa,increasing by 0.9 MPa.The chloride penetration of modified mortar was reduced by 13.6%. And the greater the amount of emulsion is,the smaller the permeability of chloride ion is.关键词
苯丙乳液/力学性能/耐久性/改性机理Key words
styrene-acrylic emulsion/mechanical property/durability/modification mechanism分类
建筑与水利引用本文复制引用
邢小光,许金余,白二雷,王谕贤..苯丙乳液改性砂浆的优化配比及其性能研究[J].硅酸盐通报,2018,37(4):1174-1180,7.
