化学发泡制备超轻憎水泡沫混凝土研究  

Research on preparation of ultra-light and hydrophobic foam concrete by chemical foaming

作　　者：张欣[1] 叶剑锋 周海兵[1] 李石林[1] 冯涛[1] 

机构地区：[1]湖南科技大学煤炭资源清洁利用与矿山环境保护湖南省重点实验室,湖南湘潭411201 [2]海螺(益阳)水泥有限公司,湖南益阳413500

出　　处：《新型建筑材料》2013年第3期49-51,78,共4页New Building Materials

基　　金：湖南科技大学煤炭资源清洁利用与矿山环境保护湖南省重点实验室开放基金资助项目(Coal201103)

摘　　要：研究了水胶比、粉煤灰与发泡剂用量以及促凝剂与憎水剂类型及用量对硅酸盐水泥化学发泡制备泡沫混凝土的浆体发泡与成型的影响,并对硬脂酸钙憎水剂对试样吸水率的影响进行了试验。研究结果表明,以普通硅酸盐水泥和粉煤灰为主要原料、硬脂酸钙为憎水剂,选用促凝剂A、水胶比为0.55、粉煤灰掺量为30%、发泡剂用量为6.5%,可以制得密度为200 kg/m3的超轻憎水泡沫混凝土。该研究成果已应用于河南某公司的水泥发泡保温板生产线中。Influences of water-cement ratio, amount of fly ash and foaming agent,and type and amount of aecelerant and hydrophobic agent on foaming and forrhing of slurry in preparing foam concrete from Portland cement by chemical foaming were examined, and effect of hydrophobic agent of calcium stearate on water absorption of the sample was＂ studied. It has been shown that the ultra-light （with density 200 kg/m3） foam concrete can he manufactured by chemical foaming with Portland cement and fly ash as main raw material,calcium stearate as hydrophobic agent,O.55 of water-cement ratio,30% of fly ash,and 6.5% of foaming agent. The research results have been applied to cement foaming insulation board production line of a company in Henan.

关 键 词：化学发泡 保温材料 憎水剂 硅酸盐水泥 泡沫混凝土 

分 类 号：TU528.2[建筑科学—建筑技术科学]