防水型岩棉外保温系统抹面砂浆研究  

Research on surface mortar of ETICS based on rock wool

作　　者：王辉 王霞 

机构地区：[1]北京天维宝辰化学产品有限公司,北京102200

出　　处：《新型建筑材料》2011年第10期68-70,共3页New Building Materials

摘　　要：针对岩棉对水敏感的弱点,重点研究具有良好防水功能的岩棉外保温系统抹面砂浆,对比了EVA乳胶粉和丙烯酸乳胶粉与有机硅憎水剂在抹面砂浆中复合使用情况,研究结果表明,丙烯酸乳胶粉的防水性更为优异,丙烯酸乳胶粉7042W掺量2.5%时可以使5 mm抹面砂浆不透水,EVA乳胶粉6022E和有机硅憎水剂复合使用也可以达到相同效果;在热老化作用下,抹面砂浆的吸水量有所增加,抗冲击强度有所下降,丙烯酸乳胶粉7042W的耐热老化性能明显优于EVA乳胶粉6022E。Aiming at the water-sensitive weakness of rock wool,surface mortar for rock wool-based ETICS with good waterproof performance was particularly, researched. The compound use condition of EVA emulsion powder, acrylic latex powder with silicone water repellent in surface mortar was compared. The research results showed that the waterproof performance of acrylic latex powder was better, 5 mm surface mortar can be impermeable when the content of acrylic latex powder 7042W was 2.5%, and compound use of EVA emulsion powder 6022E and silicone water repellent can achieve the same effect： under the function of thermal aging, the water absorption of the surface mortar increased, and impact strength decreased. The heat-resisting performance of acrylic latex powder 7042W was significantly better than that of EVA emulsion powder 6022E.

关 键 词：岩棉 外保温 抹面砂浆 防水 抗冲击强度 丙烯酸乳胶粉 热老化 

分 类 号：TU578.1[建筑科学—建筑技术科学]