摘要
通过对气凝胶掺杂玻化微珠砂浆改性研究,掺杂不同体积比例的改性或未改性气凝胶颗粒,分别测试其养护7天和28天的抗压强度和抗折强度,数据表明,随着气凝胶掺杂比例的增加,其抗压强度逐渐降低,从未掺杂的0.81MPa和1.01MPa逐渐降低至0.40MPa和0.56MPa;抗折强度从未掺杂的0.429MPa和0.685MPa逐渐降低至掺杂比例8%的0.142MPa和0.305MPa;其砂浆的导热系数呈线性下降趋势;当掺量达到6%时,导热系数值从0.0838W/(m·K)降至0.0658W/(m·K).
By studying the modification of aerogel doped vitrified microbead mortar, the modified or unmodified aerogel particles with different volume ratios were tested, and the compressive and flexural data of 7 and 28 days of curing were tested. With the increase of the aerogel doping ratio, the compressive strength gradually decreases, and the undoped 0.81 MPa and 1.01 MPa gradually decrease to 0.40 MPa and 0.56 MPa. The flexural strength gradually decreased from 0.429 MPa and 0.685 MPa undoped to 0.142 MPa and 0.305 MPa in the doping ratio of 8%. The thermal conductivity of the mortar decreases linearly. When the dosage reaches 6%, the thermal conductivity decreases from 0.083 8 W/(m·K) to 0.065 8 W/(m·K).
作者
李安宁
沈志明
张新生
曹静
李娟
李伟
朱灿银
LI An-ning;SHEN Zhi-ming;ZHANG Xin-sheng;CAO Jing;LI Juan;LI Wei;ZHU Cart-yin(Jiangsu Colourful New Building Material Industry Co. Ltd.,Nanjing 211100,China;Jiangsu Greening of Existing Buildings Engineering and Technology Research Center,Nanjing 211100,China)
出处
《安徽化工》
CAS
2019年第3期67-70,共4页
Anhui Chemical Industry
关键词
气凝胶
保温砂浆
导热性能
aerogel
thermal insulation mortar
thermal conductivity
