Authors: Carlier, C; Veenstra, RL

Open access courtesy of:
Principal Sponsor:

DOI https://doi.org/10.36487/ACG_repo/2115_35

Cite As:
Carlier, C & Veenstra, RL 2021, 'The new cemented paste backfill recipes selection method at Newmont Éléonore mine', in AB Fourie & D Reid (eds), Paste 2021: 24th International Conference on Paste, Thickened and Filtered Tailings, Australian Centre for Geomechanics, Perth, pp. 439-452, https://doi.org/10.36487/ACG_repo/2115_35

Download citation as:   ris   bibtex   endnote   text   Zotero


Abstract:
Until mid-2020, the Newmont Éléonore mine cemented paste backfill (CPB) recipes were chosen from charts comparing binder contents and strengths at specific curing ages up to 56 days. However, these charts were based on Mitchell’s method using Éléonore’s biggest stope dimensions. They also did not consider any rheology, maximum surface pump pressure capacities or mix density. Using the new system, and its resulting template, backfill personnel can tailor a recipe for each stope to meet the latest sequence and environment conditions. This paper explains how the new paste recipes are selected, as well as the costs savings and productivity increases they enabled.

Keywords: cemented paste backfill recipes, rheology, selection template, binder, costs

References:
Baldwin, G & Grice, AG 2000, ‘Engineering the new Olympic Dam backfill system’, Proceedings of MassMin 2000, The Australasian Institute of Mining and Metallurgy, Melbourne, pp. 721–734.
Guido, S, Grenon, M & Germain, P 2017, ‘Stope performance assessment at the Goldcorp Eleonore mine using bivariate analysis’, Proceedings of the ISRM 2017 International Symposium: Rock Mechanics for Africa AfriRock, The Southern African Institute of Mining and Metallurgy, Johannesburg.
Mitchell, RJ, Olsen, RS & Smith, JD 1982, ‘Model studies on cemented tailings used in mine backfill’, Canadian Geotechnical Journal, vol. 19, pp. 14–28.
Paterson & Cooke Canada Inc. 2020, Eleonore Paste Capacity Review - Test Work Report, external report for Newmont Goldcorp Eleonore gold mine.
Saros 2016, NTO01 - Assessment of Blasting Impacts on Active Paste Filled Stopes, external report for Newmont Tanami Operations, Saros, Brisbane.




© Copyright 2021, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
Please direct any queries or error reports to repository-acg@uwa.edu.au