Study on Properties of Coal Gangue Derived SiO2 Aerogel and Composite Mortar
- 10.2991/caai-18.2018.41How to use a DOI?
- SiO2 aerogel; composite mortar; preparation technology; coal gangue
In the paper, a kind of SiO2 aerogel based on coal gangue was synthesized and its physical properties were investigated. The properties of the composite mortar prepared with the synthesized aerogel as aggregate were further discussed. The results showed that the aerogel gained has a specific surface area of 690 m2/g, a porosity of >90%, an average pore size of 20-50 nm, a density of 0.19 g/cm3, and a thermal conductivity of 26.5×10-3 W/(m·K). The composite mortar was designed by the volume method. The performance of composite mortar with different aerogel content was studied. The results showed that the thermal conductivity, compressive strength and flexural strength of 28 days reached 0.06 W/(m·K), 3.81 MPa and 2.23 MPa, respectively.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Shuqi Yu AU - Pinghua Zhu PY - 2018/08 DA - 2018/08 TI - Study on Properties of Coal Gangue Derived SiO2 Aerogel and Composite Mortar BT - Proceedings of the 2018 3rd International Conference on Control, Automation and Artificial Intelligence (CAAI 2018) PB - Atlantis Press SP - 173 EP - 176 SN - 2589-4919 UR - https://doi.org/10.2991/caai-18.2018.41 DO - 10.2991/caai-18.2018.41 ID - Yu2018/08 ER -