高性能低密度加气混凝土的研究  

Research on the High Performance and Low Density Aerated Concrete

作　　者：黄政宇[1] 樊峻[1] 谢学钦[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《材料导报》2013年第12期136-140,共5页Materials Reports

基　　金：国家自然科学基金(51178711);广东省产学研项目(2012B091100177)

摘　　要：研究了高性能低密度加气混凝土的凝结时间、抗压强度、干密度、吸水率、导热系数。实验结果表明,掺入7.5%的硫铝酸盐水泥和0.03%的碳酸锂,可以显著缩短加气混凝土料浆的凝结时间,水温也可调节料浆凝结时间;高锰酸钾可以提高双氧水发泡量;同密度等级的加气混凝土,在低水灰比条件下抗压强度明显较高,导热系数和吸水率较低。The properties of high performance and low density aerated concrete, including setting time, corn pressive strength, dry bulk density, water absorption and thermal conductivity were investigated. The results showed that adding 7. 5% sulfur aluminate cement mixed with 0. 03% lithium carbonate can significantly shorten the setting time of aerated concrete. In addition, adjustment of water temperature has great influence on setting time. Potassium permanganate can significantly increase the amount of foaming. For the aerated concrete of the same density grade, compressive strength under the condition of low water to binder ratio was obviously higher, and its thermal conductivity and water absorption properties were lower.

关 键 词：加气混凝土 双氧水 抗压强度 干密度 

分 类 号：TU528[建筑科学—建筑技术科学]