论文部分内容阅读
上海市南市区房地局科研小组,针对一些旧式里弄的房屋结构质量较差,造成晒台漏水的问题,进行了建筑防水涂层研究。经过二年多的试验研究,并应用于晒台和预制板水泥屋面防水,施工了二千多平方米,通过实际使用,效果较好。这种建筑防水涂层(简称NF涂层),是由聚乙烯醇缩甲醛胶(又名107建筑胶水)与水泥混合的涂料为基层,以氯乙烯偏氯乙烯涂料(LP涂料)罩面涂刷三至四度而成。一、NF涂层的性能 1.耐水性试验:试件浸水15天,吸水率小于15％,涂层表面无起皮、起泡、剥落,
The research team of the Shanghai Municipal Bureau of Housing and Land Development in the south of the city conducted a research on the waterproof coating of buildings against the problems of poor quality of old-style housing structures and water leakage caused by drying tables. After more than two years of experimental research, it has been used in the waterproofing of drying tables and precast concrete roofs. It has been constructed with more than 2,000 square meters. Through practical use, the effect is good. This architectural waterproof coating (abbreviated as NF coating) is a coating made of polyvinyl alcohol-formaldehyde (also known as 107 construction glue) mixed with cement as a base layer, and a vinyl chloride vinylidene chloride coating (LP coating). Brush from three to four degrees. First, the performance of NF coating 1. Water resistance test: The test piece was soaked in water for 15 days, the water absorption rate was less than 15%, and the coating surface had no peeling, blistering and peeling.