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Document ID (ISN)104295
CIS number 05-709
ISBN(s) 2-551-22627-9
Year 2004
Convention or series no. Etudes et Recherches R-390
Author(s) Benzaazoua M., Fall M., Ouellet S.
Title Multidisciplinary study to develop a decision support tool for predicting the behaviour of paste backfills
Original title Etude pluridisciplinaire visant à mettre au point un outil expert pour la prédiction du comportement des remblais en pâte [in French]
Bibliographic information Institut de recherche en santé et en sécurité du travail du Québec (IRSST), 505 boul. de Maisonneuve Ouest, Montreal (Quebec) H3A 3C2, Canada, 2004. v, 21p. Illus. 35 ref. Price: CAD 10.00. Downloadable version (PDF format) free of charge.
Internet access [in French]
Abstract Paste backfill is used to stabilize underground excavations but is complex to produce and presents various safety issues. There is currently no satisfactory method for establishing the correct composition of cemented paste backfill. Based on experimental data, mathematical models were developed that predict the mechanical strength, consistency, percent solids and the production cost of cemented paste mining backfill. Results have allowed fill properties to be optimized by taking into account important criteria, including worker safety and the technique's feasibility and usefulness. Validated experimentally, the models have resulted in a preliminary version of a decision support tool for the determination of paste fill composition. The work is being pursued to improve the tool and extend its areas of use.
Descriptors (primary) Quebec; underground mining; prediction; cement; stowing and filling
Descriptors (secondary) strength of materials; Canada; materials testing; economic aspects; mathematical models; report
Document type E - Books, reports, proceedings
Country / State or ProvinceCanada
Subject(s) Mines and quarries
Broad subject area(s) Mechanical hazards, transport
Browse category(ies) Cement and concrete