Yang, W, Marshall, AM, Wanatowski, D orcid.org/0000-0002-5809-0374 et al. (1 more author) (2017) An Experimental Evaluation of the Weathering Effects on Mine Shaft Lining Materials. Advances in Materials Science and Engineering, 2017. 4219025. ISSN 1687-8434
Abstract
Many shaft collapses are related to the deterioration and failure of the masonry shaft lining materials. In modern mine shaft, concrete is widely used to provide support. To analyse shafts stability, the properties of the lining need to be well defined. The behaviour of masonry and concrete can be considerably affected by long-term exposure to harsh mine water. This paper presents a study which focuses on the weathering effects of mine water on lining materials (brick, mortar, and concrete). To reproduce the weathering process, samples were placed into solutions of potable water, artificial mine water, and a more aggressive mine-water solution for just less than one year. Four phases of laboratory tests were conducted throughout the time period to assess the degradation of mechanical properties of the lining materials. Particular attention is given to the degradation of material strength and stiffness. Results indicate that the harsh acidic mine water has pronounced detrimental effects on the strength and stiffness of mortar. The weathering process is shown to have the most significant effect on the stiffness of concrete and mortar. It is also shown that the use of mass loss as an index for evaluation of mechanical properties may not be appropriate.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 W. Yang et al. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | weathering; shaft lining.; brick; mortar; concrete |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > SWJTU Joint School (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Dec 2016 09:47 |
Last Modified: | 22 Aug 2019 05:27 |
Published Version: | https://www.hindawi.com/journals/amse/aip/4219025/ |
Status: | Published |
Publisher: | Hindawi |
Identification Number: | 10.1155/2017/4219025 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109145 |