United States Department of Transportation
i
Availability of Mining Wastes and Their Potential for Use as Highway Material - Executive Summary
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1977-09-01
[PDF-1.86 MB]
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Edition:Final Summary Report
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Abstract:This study was performed to determine the availability of mining and metallurgical wastes in the United States and to assess their potential for use in various aspects of highway construction. A comprehensive literature survey was performed to develop information on locations, amounts, compositions, and uses of various mining and metallurgical wastes. Knowledgeable personnel in the mining industry, governmental agencies, trade associations, and universities were contacted to obtain additional unpublished information. The information was used to inventory, classify, and evaluate these wastes. Over 1.6 billion tons of mining and metallurgical wastes are generated each year. Although a small percentage of all this material is actually being used, a number of mining and metallurgical wastes have been successfully utilized as highway construction material. A number of other mineral wastes are potentially useful with some degrees of processing. Materials most highly recommended for use in highway construction are gold gravels, steel slag, lead-zinc chat, phosphate slag, taconite tailings, copper slag, and waste rock from the mining of copper, fluorspar, gold, and iron ore.
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