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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Characterization of a Copper Slag Used in Mine Fill Operations
Author(s): H. Roper, F. Kam,
and G.J. Auld
Publication: Special Publication
Appears on pages(s): 1091-1110
Keywords: backfilling, calcium hydroxides; copper; heat of
hydration; hydration; mines (excavations); slags; slurries;
Abstract:Methods of production, placement and strength requirements of mine fill are briefly described. The chemical composition and details of the mineralogical nature of a particular quenched copper reverberatory furnace slag, successfully used in fill operations at Mount Isa Mine, Queensland, Australia are discussed. Experimental work on slag reactivity in the presence of Ca(OH)2 is described, and includes studies on the heat of hydration, non-evaporable water and x-ray intensity variations. The reaction product, which is also observed in the presence of hydrating portland cement appears to be a 7.34 & hydrate. Information on hydration characteristics may eventually allow advantageous modifications to be made to the present compositions of the fill material.
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