Development of a tool to optimize the production of paste overfill Abstract Paste mining backfill is used to stabilize underground excavations but is complex to produce and has related safety problems. No method currently exists to guide the development of cemented paste backfill recipes. Using experimental studies as a basis, the authors have developed mathematical models that predict rather precisely the mechanical strength, consistency, percent solids and the production cost of cemented paste mining backfill. The model’s results have optimized fill properties by taking into account important criteria for the company, namely worker safety and the technique’s feasibility and usefulness. Validated experimentally, the developed models have resulted in the development of a preliminary version of an expert help tool for the production of paste fill recipes. The authors are pursuing their work to improve the tool and extend its utilization possibilities. Produced Under this Project Scientific Reports Multidisciplinary study to perfect an expert tool for predicting the behaviour of paste backfills Research Report: R-390 Simplified Articles Remblais miniers en pâteLa recette logique de la solidité Volume 19, n0 2 Scientific Publications Advances in predicting performance properties and cost of paste backfillFall M., Benzaazoua M.Source : in Tailings and Mine Waste 2003 (October 12-15, 2003 : Vail, Colorado). Rotterdam, Balkema, 2003, p. 73–85Sulphide reactivity within cemented paste backfill: oxygen consumption test resultsOuellet S., Bussière B., Benzaazoua M., Aubertin M., Fall M., Belem T.Source : in Proceedings on the 56th Canadian Geotechnical and 4th Joint IAH-CNC/CGS and the 1st Joint NAGS/CGS Conference : (September 28 - October 1, 2003 : Winnipeg, Canada), 2003, p. 176-183Modelling and simulation of paste backfill performance propertiesFall M., Benzaazoua M.Source : in Proceedings on the 56th Canadian Geotechnical and 4th Joint IAH-CNC/CGS and the 1st Joint NAGS/CGS Conference : (56th : September 28 - October 1, 2003 : Winnipeg, Canada), 2003, p. 161-169The use of Pastefill as a Solidification and Stabilization Process for the Control of Acid Mine DrainageBenzaazoua M., Marion P., Picquet I., Bussière B.Source : in Processing & Disposal of Mineral Industry Wastes '03 (June 18-20, 2003 : Falmouth, United Kingdom), 2003Contribution to understanding the mechanism of cemented paste backfill hardeningBenzaazoua M., Fall M., Ouellet B., Bussière B., Belem T.Source : in Processing & Disposal of Mineral Industry Wastes '03 (June 18-20, 2003 : Falmouth, United Kingdom), 2003A Model for Predicting the Performance of Underground Paste BackfillFall M., Benzaazoua M.Source : in Proceedings on 18th International Conference on Solid Waste Technology and Management (18th : March 23-26, 2003 : Philadelphia, USA), 2003, p. 942-951Utilisation du remblai en pâte comme support de terrain. Partie II : comportement a court, a moyen et a long termeBenzaazoua M., Belem T., Ouellet S., Fall M.Source : in Après-mines 2003: Impacts et gestion des risques:besoins et acquis de la recherche (5-7 février, 2003 : Nancy, France,), 2003Chemical aspect of sulfurous paste backfill mixturesBenzaazoua M., Belem T., Bussière B.Source : Cement and Concrete Research, vol. 32 no 7, 2002, p. 1133–1144Modeling the effect of sulphate on strength development of paste backfill and binder mixture optimizationFall M., Benzaazoua M.Source : Cement and Concrete Research, vol. 35, no 2, 2005, p. 301-314Experimental characterisation of the influence of mill tailings fineness and density on the quality of cemented paste backfillFall M., Benzaazoua M., Ouellet S.Source : Minerals Engineering, vol. 18, no 1, 2004, p. 41-44A contribution to understanding the hardening process of cemented paste backfillBenzaazoua M., Fall M., Belem T.Source : International Journal of Minerals Engineering, vol. 17, no 2, 2004, p. 141-152Effect of tailings properties on paste backfill performanceFall M., Benzaazoua M., Ouellet S.Source : in Proceedings of the 8th International Symposia on Mining with Backfill, (8th : September 19-21, 2004 : Beijing, China), 2004, p. 193-202Développement d'un outil expert d'aide à la fabrication des remblais en pâte cimentésFall M., Benzaazoua M.Source : in Compte-rendu du 19e Colloque de contrôle de terrain de l'AMQ, (19e : 2004 : Val D'Or, Canada), 2004, p. 122-146Characterization of self-weight consolidated paste backfillBelem T., El Aatar O., Bussière B., Benzaazoua M., Fall M., Yilmaz E.Source : in International Seminar on Paste and Thickened Tailings - Paste'06, (9th : April 3-7, 2006 : Limerick, Ireland), 2006Short and long terms performance of cemented paste backfill strengthYilmaz E., Kesimal A., Ercikdi B., Benzaazoua M., Belem T., Bussière B.Source : in International Mining Congress & Fair - IMCET2005, (19th : June 9-12, 2005 : Izmir, Turkey), 2005 Additional Information Type: Project Number: 0099-0850 Status: Completed Year of completion: 2004 Research Field: Mechanical and Physical Risk Prevention Team: Mostafa Benzaazoua (Université du Québec en Abitibi-Témiscamingue)Tikou Belem (Université du Québec en Abitibi-Témiscamingue)