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新型墙体材料与施工
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解毒飞灰资源化制备混凝土自保温砌块的试验研究

作者:张磊蕾1,王武祥1,张旭2,王爱军1,廖礼平1,石然1

关键字:解毒,飞灰,资源化,制备,混凝土,自,保温,砌块,

 
(1.中国建筑材料科学研究总院有限公司,北京  100024;
2.中投咨询有限公司,北京  100035)
    摘要:解毒飞灰用于制备混凝土自保温砌块,既缓解了飞灰对环境的压力,又对推进墙材革新与建筑节能工作产生积极作用。通过化学发泡、物理发泡制备混凝土自保温砌块基材技术路线均不可行。而在解毒飞灰中掺加超轻集料玻化微珠制备干表观密度700~1000级解毒飞灰轻质砂浆用于自保温砌块基材,抗压强度分别达到A3.5级、A5.0级和A7.5级;可以制备密度等级600~800级、强度等级MU3.5、MU5.0的实心自保温砌块和复合自保温砌块。
    关键词:解毒飞灰;轻质砂浆;实心自保温砌块;复合自保温砌块;抗压强度
    中图分类号:TU522.3+2        文献标识码:A        文章编号:1001-702X(2023)02-0110-04
 
Experimental research on preparation of self-insulation concrete block with detoxificated fly ash
ZHANG Leilei1,WANG Wuxiang1,ZHANG Xu2,WANG Aijun1,LIAO Liping1,SHI Ran1
(1.China Building Materials Academy,Beijing 100024,China;
2.China National Investment Consulting Co. Ltd.,Beijing 100035,China)
    Abstract:Using detoxicated fly ash to prepare self-insulation concrete blocks not only relieves the pressure of fly ash on environment,but also promotes the innovation of wall materials and energy saving of buildings. The research shows that the method of preparing foamed concrete used as self-insulation block by chemical foaming or physical foaming is not feasible. The detoxificated fly ash lightweight mortar with dry apparent density of 700~1000 grade made by adding ultra-light aggregate vitrified beads into the detoxicated fly ash can be used as the base material of self-insulation block,and its compressive strength reaches A3.5 grade,A5.0 grade and A7.5 grade,the solid self-insulating block and composite self-insulating block with density grade 600~800,strength grade MU3.5 and Mu5.0 can be prepared.
    Key words:detoxificated fly ash,lightweight mortar,solid self-insulation block,composite self-insulation block,compressive strength