发明名称 Method of mine backfilling and material therefor
摘要 A method of backfilling in underground mine operations by a mill tailings slurry which is dewatered to provide a material with a controlled water content to permit the dewatered material to be used as a backfill without requiring any substantial dewatering after placement and which material can, when desired, be mixed with selected quantities of cement to provide a mortar for backfilling or surface covering.
申请公布号 US4101333(A) 申请公布日期 1978.07.18
申请号 US19770799422 申请日期 1977.05.23
申请人 JOY MANUFACTURING COMPANY 发明人 WAYMENT, WILLIAM ROSS
分类号 C04B18/12;E21F15/00;(IPC1-7):C04B7/00;C04B7/02 主分类号 C04B18/12
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