Strip mine reclamation using western coal ash

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Date
1993
Authors
Lapke, Robert Kenneth
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Bergeson, Kenneth
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Abstract
In this project, research was directed at evaluating the feasibility of using Iowa high calcium fly ash produced from generating stations burning western coals as a low permeability liner material for the renovation of abandoned strip mines with the potential use as a liner material for landfills also in mind. Density tests, compressive strength tests, permeability evaluations, porosimetry tests, leachate tests, morphology studies, and chemical analysis were all performed to determine the suitability of the Class C fly ash as a liner material. Shrink/swell tests and freeze-thaw susceptibility tests were also conducted to determine the physical stability of the fly ash mixtures.
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