成型方式对聚合物水泥防水涂料物理力学性能的影响

Effects of Application Methods on Physical and Mechanical Performance of Polymer-modified Cement Compounds for Waterproofing Membrane

聚合物水泥防水涂料的成型方式很多,GB/T 23445—2009《聚合物水泥防水涂料》标准规定成型方式为:分2次或3次涂覆,使试样厚度达到(1.5±0.2)mm。一般实验室采用刮涂成型方式,但在工程施工中多采用刷涂或滚涂成型方式。本文分别采用刮涂、刷涂和滚涂成型方式成型不同厂家的JS涂料样品,并研究其对JS涂料拉伸强度和断裂伸长率的影响。结果表明,刷涂和滚涂成型的样品上述性能优于刮涂成型的样品。

Polymer cement waterproofing coating has several ways of application.According to GB/T 23445-2009《Polymer-modified Cement Compounds for Waterproofing Membrane》,the samples are prepared by coating 2 or 3 times to have thickness of 1.5±0.2 mm.This article studies effects of application methods such as knifing,brushing and roll coating on tensile strength and elongation at break of JS coatings from various manufacturers.The results show that performance of samples by brushing and roll coating is better than knifing.