Key issues related to behaviour of binders in cemented paste backfilling
|
Authors: Benzaazoua, M; Peyronnard, O; Belem, T; Fried, E; Stephant, A; Dublet, G |
DOI https://doi.org/10.36487/ACG_rep/1063_30_Benazzaoua
Cite As:
Benzaazoua, M, Peyronnard, O, Belem, T, Fried, E, Stephant, A & Dublet, G 2010, 'Key issues related to behaviour of binders in cemented paste backfilling', in R Jewell & AB Fourie (eds), Paste 2010: Proceedings of the Thirteenth International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 345-363, https://doi.org/10.36487/ACG_rep/1063_30_Benazzaoua
Abstract:
Backfilling practices become widely used by modern hard rock mines helping ore extraction as well as allowing a more integrated solid waste management. Among backfill types, cemented paste backfill is taking an increasing interest since its easy placement in the underground stopes and its capacity to use reactive sulfidic tailings. Various binder agents, including conventional manufactured cements and alternative additives, can be used in order to set the needed mechanical properties of the backfill during mining sequences. Due to the high price of binders and their sensitivity towards chemical properties of the backfill material, backfill recipe optimisation becomes capital. The key note will focus on the various sources and compositions of the most common binders in paste backfilling. The paper will also contribute in the understanding of the binder hardening processes in cemented paste; focusing particularly on i) cement hydration, ii) water demand and water chemical interactions, iii) solid mineralogy, iv) sulfate and sulfide behaviours, v) temperature role, etc. The main short- and long-terms behaviour types of cemented paste backfill will be discussed (effects of drainage-consolidation, sulfate attacks, etc.).
References:
Archibald, J.F., Chew, J.L. and Lausch, P. (1998) Use of ground waste glass and Portland cement mixtures for
improving slurry and paste backfill support performance, available online at:
Belem, T. and Benzaazoua, M. (2007) Underground mine paste backfill technology: applications and design methods,
Geotechnical and Geological Engineering, Vol. 26-2, pp. 147–174.
Benzaazoua, M., Fiset, J-F., Bussière, B., Villeneuve, M. and Plante, B. (2006) Sludge recycling within cemented paste
backfill: Study of the mechanical and leachability properties, Minerals Engineering, Vol. 19-5, pp. 420–432.
Benzaazoua, M., Fall, M. and Belem, T. (2004a) A contribution to understanding the hardening process of cemented
pastefill, Minerals Engineering, Vol. 17-2, pp. 141–152.
Benzaazoua, M., Marion, P., Picquet, I. and Bussière, B. (2004b) The use of pastefill as a solidification and stabilization
process for the control of acid mine drainage, Minerals Engineering, Vol. 17-2, pp. 233–243.
Benzaazoua, M., Belem, T. and Bussière, B. (2002) Chemical factors that influence on the performance of mine
sulphidic paste backfill, Cement and Concrete Research, Vol. 32-7, pp. 1133–1144.
Benzaazoua, M., Ouellet, J., Servant, S., Newman, P. and Verburg, R. (1999) Cementitious backfill with high sulfur
content: physical, chemical and mineralogical characterization, Cement and Concrete Research, Vol. 29,
pp. 719–725.
Gauthier, P. (2004) Valorisation des liants et des rejets industriels dans les remblais miniers, Mémoire de DESS,
Université du Québec en Abitbi-Témiscamingue.
Godbout, J., Bussière, B., Belem, T. and Benzaazoua, M. (2004) Évolution des propriétés de rétention d’eau des
remblais miniers cimentés en pâte durant le curage, The 57th Annual Canadian Geotechnical Conference and 5th
joint IAH-CNC-CGS Conference “Geo-engineering for society and its environment”, Québec, Canada, October
24–26, pp. 15–22.
Grice, T. (1998) Underground mining with backfill, In Proceedings 2nd annual summit on Mine Tailings Disposal
Systems, Brisbane, 14 p.
Liu, W., Yang, J. and Xiao, B. (2009) Application of Bayer red mud for iron recovery and building material production
from alumosilicate residues, Journal Hazard. Mater., Vol. 161(1), pp. 474–478.
Keynote address – Thickening
Paste 2010, Toronto, Canada 363
Lun, P.T.W. (1986) Soil reinforcing technique in mine backfilling, Geotechnical and Geological Engineering, Vol. 4,
No. 1, pp. 47–66.
Ouellet, S., Bussière, B., Mbonimpa, M., Benzaazoua, M. and Aubertin, M. (2006) In situ reactivity of an underground
mine sulfidic cemented paste backfill Minerals Engineering, Vol. 19-5, pp. 407–419.
Pan, Z., Zhang, Y. and Xu, Z. (2009) Strength development and microstructure of hardened cement paste blended with
red mud, Journal of Wuhan University of Technology, Mater. Sci. Ed., Vol. 24-1, pp. 161–165.
Taylor, H.F. (1990) Cement Chemistry, Academic Press, Harcourt Brace Jovanovich Publishers, London, 475 p.
Yilmaz, E., Benzaazoua, M., Belem, T. and Bussière, B. (2009) Effect of curing under pressure on compressive strength
development of cemented paste backfill, Minerals Engineering, Vol. 22(9-10), pp. 772–785.
Key issues related to behaviour of binders in cemented paste backfilling M. Benzaazoua et al.
364 Paste 2010, Toronto, Canada
© Copyright 2024, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
View copyright/legal information
Please direct any queries or error reports to repository-acg@uwa.edu.au
View copyright/legal information
Please direct any queries or error reports to repository-acg@uwa.edu.au