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保温材料与建筑节能
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纳米SiO2对无机轻集料保温砂浆性能的影响

作者:胡玲霞1,马立涛2,赵潇武2,赵忠强2

关键字:纳米,SiO2,对,无机,轻,集料,保温,砂浆,性能,的,

 
(1.金华职业技术学院 制药与材料工程学院,浙江 金华  321000;
2.浙江大森建筑节能科技有限公司,浙江 金华  321000)
摘要:主要考察了纳米SiO2掺量对无机轻集料保温砂浆密度、抗压强度、导热系数、体积吸水率等性能的影响。结果表明,无机轻集料保温砂浆的干密度、导热系数随着纳米SiO2掺量的增加而减小。纳米SiO2掺量在0~3%时对抗压强度有益,但掺量高于6%时,抗压强度急剧下降;纳米SiO2掺量为3%时,无机轻集料保温砂浆的体积吸水率小于20%。
关键词:纳米SiO2;无机轻集料保温砂浆;抗压强度;体积吸水率
中图分类号:TU528.2        文献标识码:A        文章编号:1001-702X(2018)12-0131-03
 
Influence of nano silica on the performance of inorganic lightweight aggregate thermal insulation mortar
HU Lingxia1,MA Litao2,ZHAO Xiaowu2,ZHAO Zhonqiang2
(1.Jinhua Polytechnic College of Pharmaceutics and Material Engineering,Jinhua 321000,China;
2.Zhejiang Dasen Building Energy Conservation Technology Co. Ltd.,Jinhua 321000,China)
Abstract:In this paper,the effect of nano-SiO2 content on the density,compressive strength,thermal conductivity and volume water absorption of inorganic lightweight aggregate insulation mortar was investigated. The results show that,as the increase of nano-SiO2 content,the dry density and thermal conductivity of the inorganic lightweight aggregate thermal insulation mortar would reduce gradually. And when the content of nano-SiO2 is 0~3%,the compressive strength will increase,however,when the content is more than 6%,the compressive strength decreased rapidly. When the amount of nano-SiO2 is 3%,the volumetric water absorption of inorganic lightweight aggregate thermal insulation mortar is less than 20%.
Key words:nano-SiO2,inorganic lightweight aggregate thermal insulation mortar,compressive strength,volumetric water absorption