硅钙板-泡沫混凝土界面粘结性能研究  

Study on the interfacial bonding performance of betweenfoamconcrete and calcium silicate board

作　　者：罗云峰[1] 陈镇杉 余其俊[1] 韦江雄[1] 李方贤[1] 胡捷[1] 林东[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510640

出　　处：《功能材料》2015年第22期22049-22053,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51208209);广东省产学研资助项目(2013B090600056);广东省重大科技专项资助项目(2012A010800026)

摘　　要：采用直接浇注成型的方式制备了硅钙板G泡沫混凝土复合墙板,对其界面粘结性能进行研究.探讨了硅钙板处理工艺和不同添加剂对复合板界面粘结性能的影响.结果表明,随着乳胶粉的掺量的增加,复合板的粘结强度增大;湿、干、干＋胶、干＋胶＋凹四种处理方式的硅钙板,其复合板粘结强度大小为干＋胶＋凹〉 干＋ 胶〉 干〉 湿;硅钙板相对含水率在0-50%时,复合板粘结强度不低于200kPa;掺入增稠剂对复合板粘结强度没有不利影响,但可以降低其塌模程度,掺入速凝剂降低了其粘结强度.从复合板的粘结性能、泡沫混凝土浇注稳定性和生产成本综合考虑,乳胶粉掺量为1%、掺入少量增稠剂、硅钙板相对含水率为50%,可以制备出粘结强度较高、且不产生塌模的复合板.In this paper,composite board was prepared by pouring foam concrete,and the bonding strength between foam concrete and calcium silicate board was discussed.The influence of processing methods of calcium silicate board and admixture of foam concrete on the bonding strength of the composite board were investigated.The results show that the bonding strength of composite board increased when the dosage of emulsion powder increased.The bonding strength order with different processing methods of calcium silicate board was dry+glue+groove>dry+glue>dry>wet.When the relative moisture content of calcium silicate board was between 0%and 50%,the bonding strength was higher than 200 kPa.Thickening agents can improve the stability of fresh foam concrete in composite board,without adverse effect on the bonding strength.Accelerator would decrease the bonding strength.In consideration of bonding strength,stability of foam concrete,and cost of production,by using foam concrete with 1% of emulsion powder and a few thickening agent,and using composite board with 50%relative moisture content,composite board with high bonding strength and non-collapse can be prepared.

关 键 词：泡沫混凝土 硅钙板 复合板 粘结强度 

分 类 号：TU528.2[建筑科学—建筑技术科学]