E3S Web Conf.
Volume 198, 20202020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|Number of page(s)||4|
|Section||Geosynthetics Applied Design Theory and Method|
|Published online||26 October 2020|
Study on EPS thermal insulation mortar prepared by magnesium oxychloride cement
1 Guangzhou Testing Centre of Construction Quality & Safety Co., Ltd., 833 Baiyun Avenue North, Guangzhou, 510440, China
2 Guangzhou Construction Engineering Co., Ltd. 4 Guangwei Road, Guangzhou, 510030, China
* Corresponding author: firstname.lastname@example.org
In this paper, a composite thermal insulation mortar was prepared with magnesium oxychloride cement and polystyrene (EPS) particles. The influence of EPS particles content on the mechanical strength, density and thermal conductivity of composite thermal insulation mortar was studied. Also, the effect of fly ash on the density and thermal conductivity of the mortar was researched. It was shown that: (1) Generally, EPS particles could reduce the compressive strength, flexural strength, density and thermal conductivity of the mortar. The 28 days compressive strength and 28 days flexural strength decreased by 93.3 % and 81.3 % respectively, with the content of EPS particles from 0 % to 0.486 %. Also the density of the mortar was reduced from 2043 g/dm3 to 805 g/dm3, and the thermal conductivity was fell from 0.4093 W/(m·K) to 0.2191 W/(m·K). (2) Small amounts (less than 5.487 %) of fly ash could increase the density and thermal conductivity. However, when the content of fly ash was more than 5.487 %, the density and thermal conductivity of thermal insulation mortar were significantly reduced.
© The Authors, published by EDP Sciences 2020
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