|Document ID (ISN)||104295|
|Convention or series no.
||Etudes et Recherches R-390
||Benzaazoua M., Fall M., Ouellet S.
||Multidisciplinary study to develop a decision support tool for predicting the behaviour of paste backfills
||Etude pluridisciplinaire visant à mettre au point un outil expert pour la prédiction du comportement des remblais en pâte [in French]|
||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.
||http://www.irsst.qc.ca/files/documents/PubIRSST/R-390.pdf [in French]
||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.
||Quebec; underground mining; prediction; cement; stowing and filling
||strength of materials; Canada; materials testing; economic aspects; mathematical models; report
||E - Books, reports, proceedings
|Country / State or Province||Canada|
||Mines and quarries
|Broad subject area(s)
||Mechanical hazards, transport
||Cement and concrete