Backfilling Mixture Preparation Using Milled Granulated Blast-Furnace Slag
L. A. Krupnika1, Yu. N. Shaposhnikb2, S. N. Shaposhnikc3, G. T. Nurshaiykovac3
1Satpaev Kazakh National Research Technical University, Almaty, 50013 Republic of Kazakhstan
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
3Serikbaev East Kazakhstan State Technical University, Ust-Kamenogorsk, 070000 Republic of Kazakhstan
Keywords: Закладочные смеси, цементно-зольное и цементно-шлаковое вяжущие, молотые доменные гранулированные шлаки, прочностные характеристики, реологические свойства закладки, закладочные работы, Backfilling mixture, cement-ash and cement-slag binders, milled granulated blat-furnace slag, strength characteristics, rheological properties, backfilling operations
Abstract
Backfilling mixture preparation technology using a cement-slag binder is developed for Artem mine. It is shown that backfill with granulated blast-furnace slag reaches project strength when slag is to 80% milled down to 80 μm. The authors analyze influence of milling fineness of granulated blast-furnace slag from different manufacturers on strength and rheological properties of backfill. The economic analysis of cost of binder in formation of load-bearing layer of backfill prepared using fly ash and milled granulated blast-furnace slag is performed.
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