粉煤灰聚苯乙烯新型保温建筑材料的实验研究  

Experimental study of new insulation building materials made from fly ash and styrofoam

作　　者：徐子芳[1] 张明旭[1] 闵凡飞[1] 

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《中国矿业大学学报》2011年第2期264-268,共5页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(10872001);安徽省教育厅自然科学研究项目(KJ2008B274)

摘　　要：为了有效利用粉煤灰和废弃聚苯乙烯研制新型节能墙体建筑材料,以石灰、石膏作为粉煤灰活性激发剂,用废弃聚苯乙烯颗粒(EPS)作为保温成分制备砌块材料,采用X射线衍射(XRD),热重-差热分析(TGA-DTA)和扫描电子显微镜(SEM)分析方法,研究了砌块材料的优化配比及分析了砌块材料的龄期水化机理.结果表明:石灰掺比为10%,石膏掺比为5%,粉煤灰掺量为20%～25%,改性EPS为2.5%时,砌块材料的导热系数为0.505W/(m.K),保温性、施工性能、耐久与耐候性能均优良.In order to get a new kind of energy-saving wall building materials made from fly ash and waste styrofoam,a wall block materials was made using lime and gypsum as the activating agents of fly ash and waste polystyrene（EPS） particles as a constituent of the insulating material.The optimum ratio and the age hydration mechanism of wall block materials were studied using X-ray diffraction,scanning electron microscope and thermogravimetry-differential thermal analysis.The results show that when the ratio of fly ash to lime is 10% and that to gypsum is 5%,the dosage of fly ash is 20%-25% and that of modified EPS is 2.5%,the thermal coefficient of the block material is 0.505 W/（m·K）.The heat insulation property,construction property,lasting quality and weatherability are all good.

关 键 词：激发剂 聚苯乙烯泡沫 新型保温建筑材料 耐久性能 

分 类 号：X705[环境科学与工程—环境工程]