摘要
通过聚羧酸减水剂、三聚氰胺减水剂和萘系减水剂在泡沫混凝土中应用效果的比较表明,萘系减水剂的综合效果最好。萘系减水剂可提高水泥的分散性及泡沫混凝土的7 d和28 d抗压强度,掺加萘系减水剂后泡沫混凝土的自然干燥收缩率降低,同时质量吸水率和体积吸水率都呈下降趋势。
In this paper, polycarboxylie acid, melamin and polynaphthaene sulphonate water-reducing agent are tested respectively in foamed concrete. The result shows that polynaphthaene sulphonate water-reducing agent has the best comprehensive application effect. It can improve the dispersion of cement and foamed concrete compressive strength of 7 d and 28 d. After dosing polynaphthaene sulphonate water-reducing agent,the natural drying shrinkage of foamed concrete decreased,while mass water absorption and volume absorption showed a down trend.
出处
《新型建筑材料》
北大核心
2011年第5期46-49,共4页
New Building Materials
基金
上海市科学技术委员会重大课题(09-114)
关键词
泡沫混凝土
减水剂
孔隙形貌
抗压强度
吸水率
自然干燥收缩
foamed concrete
water -reducing agent
foam pore morphology
compressive strength
water absorption
natural drying shrinkage
