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Method of environmental cleanup and producing building material using copper mine tailings waste material
Method of environmental cleanup and producing building material using copper mine tailings waste material
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机译：使用铜矿尾矿废料进行环境清洁和生产建筑材料的方法
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摘要
A method of environmental cleanup by producing an autoclaved aerated cement building material (termed AAC) by a process that uses the available silica sand and other raw materials in mine tailings, in particular copper mine tailings from porphyry copper mines. The process minimizes the need for processed silica sand and other raw materials, normally used in the production of the AAC building material. The lightweight AAC building material produced from the mine tailings has excellent thermal insulation properties, sound absorption and other desirable construction qualities comparable to AAC building material produced using processed silica sand, i.e. from non-mine tailings raw material sources. The utilization of the copper mine tailings for producing the AAC building material, not only rids the countryside of the blight of the mountains of mine tailings waste material, but also preserves the natural resources by using the available silica, lime and other contained elements, and further conserves energy because the silica in the mine tailings is already previously ground to the desired gradation by the mining process. Further, since the AAC is a substitute for lumber, the forests as a natural resource, are preserved.
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