[1]封金财,李 涛,刘文影.骨料掺量对硅气凝胶砂浆性能的实验研究[J].常州大学学报(自然科学版),2019,31(02):88-92.[doi:10.3969/j.issn.2095-0411.2019.02.012]
 FENG Jincai,LI Tao,LIU Wenying.Experimental Study on Influence of Aggregate Contents on Properties of Silica Aerogel Thermal Insulation Mortar[J].Journal of Changzhou University(Natural Science Edition),2019,31(02):88-92.[doi:10.3969/j.issn.2095-0411.2019.02.012]
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骨料掺量对硅气凝胶砂浆性能的实验研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第31卷
期数:
2019年02期
页码:
88-92
栏目:
土木工程
出版日期:
2019-03-28

文章信息/Info

Title:
Experimental Study on Influence of Aggregate Contents on Properties of Silica Aerogel Thermal Insulation Mortar
文章编号:
2095-0411(2019)02-0088-05
作者:
封金财李 涛刘文影
(常州大学 环境与安全工程学院,江苏 常州 213164)
Author(s):
FENG Jincai LI Tao LIU Wenying
(School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China)
关键词:
环境友好型砂浆 SiO2气凝胶 骨料掺量
Keywords:
the environment-friendly building insulation mortar SiO2 aerogel aggregate content
分类号:
O 621.3
DOI:
10.3969/j.issn.2095-0411.2019.02.012
文献标志码:
A
摘要:
为研制新型环境友好型建筑保温隔热材料,试验探讨了不同骨料(气凝胶+砂)掺量对SiO2气凝胶保温隔热砂浆性能的影响。基于体积法设计砂浆配合比,其中骨料体积取总体积的50%,55%,60%,65%,70%,气凝胶体积取骨料体积的60%。结果表明:当骨料掺量为60%时,导热系数最低为0.15 W/(m·k),密度为1 243 kg/m3,28 d的抗压、抗折强度为9.14 MPa 和3.14 MPa,吸水率为16.6%。采用扫描电镜SEM法对砂浆的微观结构进行了分析,从微观角度验证了保温隔热砂浆的基本性能。
Abstract:
In order to develop a new environment-friendly building insulation material, the influence of differentaggregrate contents(aerogel+sand)on SiO2 aerogel insulation mortar performance was investigated.Using the volume method, the mortar mix proportion was designed, in which the total volume of aerogel and sand are 50%,55%, 60%,65%,70%, with a fixed aerogel volume ratio of 60%. The results indicated a compressive strength and flexural tensile strength of 9.14 MPa and 3.14 MPa, a density of 1 243 kg/m3, a water absorption of 16.6%, a thermal conductivity of 0.15W/(m·k)at the aerogel content of 60%. Using SEM to analyse the microstructure of the thermal insulation mortar, the basic properties of thermal insulation mortar were verified from the microscopic point of view.

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备注/Memo

备注/Memo:
收稿日期:2018-12-05。
基金项目:国家自然科学基金资助项目(51678080, 51678081)。
作者简介:封金财(1970—),男,河北景县人,硕士,副教授。E-mail: hjxfjc@cczu.edu.cn
更新日期/Last Update: 2019-03-30