Backfilling of underground mines with Paste

摘要

Paste fill is the newest form of backfill material in the spectrum available to international mines and is made from full mill tailings with an effective grain size of approximately 5 μm, combined with a small portion of binder and water. It is used to backfill the voids left by the sequential mining of ore to provide local and regional stability to the ore body. Paste is relatively new in the mining industry and as such a review of the current state of the art in understanding was considered pertinent and is contained within this paper.