Durability Test of Gangue Paste Filling Material

DOI

10.2991/mining-14.2014.22How to use a DOI?

Keywords

gangue paste; filling material; durability; anti-erosion; anti-permeability; heat stability

Abstract

In order to study the durability of gangue paste, the cement, fly ash and gangue were mixed with the proportion of 1:4:6 to compose paste and the mass concentration was 74%. Anti-erosion, anti-permeability and heat stability of filling body after 28d’s maintenance were tested. The results showed that filling body had a good anti-erosion for alkali while the acid and salt had large influence on initial strength of filling body. Filling body’s anti-permeability grade was P6 which stood for weak grade. Under the temperature of 30 and 60 , compressive strength of filling body increased slightly while it declined greatly under the temperature of 90 120 and 150 , heat stability was bad. The paste was suitable for north mines and deep mines with higher temperature.

Copyright

© 2014, 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/).

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TY  - CONF
AU  - Yin Liu
AU  - Qifeng Wang
AU  - Haoqiang Zhang
PY  - 2014/10
DA  - 2014/10
TI  - Durability Test of Gangue Paste Filling Material
BT  - Proceedings of the Taishan Academic Forum – Project on Mine Disaster Prevention and Control
PB  - Atlantis Press
SP  - 144
EP  - 149
SN  - 2352-5401
UR  - https://doi.org/10.2991/mining-14.2014.22
DO  - 10.2991/mining-14.2014.22
ID  - Liu2014/10
ER  -