Journal
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
Volume 32, Issue 8, Pages 519-535Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17480930.2017.1299604
Keywords
Mesh corrosion; underground coal mining; corrosion rate; controlled mine environment
Funding
- Australian Research Council Linkage Projects [LP100200238, LP140100153]
- Australian Research Council [LP140100153, LP100200238] Funding Source: Australian Research Council
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The effect of corrosion on different steel mesh types was examined in a Controlled Mine Environment laboratory which recreated underground mine environmental conditions. Corrosion rates of mesh at different testing conditions were calculated and weld strengths of the corroded mesh were examined. Mesh specimens in dry' conditions had no significant corrosion effects over 12weeks. However, wet-dry cycle' mesh specimens exhibited significant corrosion rapidly, with estimated corrosion rates of around 0.01mm/yr for galvanised mesh, whether sprayed once or three times daily, 0.70mm/yr for three times daily sprayed black mesh and 0.48mm/yr for once daily sprayed black mesh. The mesh corrosion mechanism was dramatically changed by wet-dry cycle. The results are indicative of the behaviour of installed mesh.
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