Ting, B, O’Hearn, B, Lin, B & Tungol, B 2014, 'Strategies for improving backfill quality in cold temperature mines', in Y Potvin & T Grice (eds), Proceedings of the Eleventh International Symposium on Mining with Backfill
, Australian Centre for Geomechanics, Perth, pp. 175-182, https://doi.org/10.36487/ACG_rep/1404_12_Ting
One of the key factors for good cemented backfill performance is proper cement hydration. By understanding the factors that influence cement hydration, improved backfill performance in subzero conditions can be achieved. The authors report on the results of a laboratory test program comparing various cements and an additive, over a range of subzero to plus zero conditions. Several mix designs were investigated to show strength development including a variation with a thawing period. This paper documents the results and applies the findings in the form of strategies to improve cemented backfill strength in permafrost conditions, and follows a paper presented at the May 2014 CIM conference held in Vancouver BC titled ‘Effect of low temperature on backfill quality in permafrost condition’ (Lin et al. 2014).
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