Document Type
Article
Abstract
Fly ash is a major by-product of thermal power plants that adversely affects land, water, and air. Its gainful utilization in many areas is being continuously explored. Use of fly ash in opencast coal mine haul road construction is one such option. This article reports detailed laboratory investigations carried out on clinker-stabilized fly ash–mine overburden mixes to evaluate their suitability for subbase of mine haul roads. Composite materials were prepared from fly ash, mine overburden, and clinker at different proportions. Proctor compaction test, unconfined compressive strength (UCS), and ultrasonic pulse velocity tests were carried out at different curing periods. UCS values were found to be strongly dependent on clinker content as well as curing period. Ultrasonic pulse velocity tests confirmed the obtained UCS results. The composite with 62% fly ash and 8% clinker content showed adequate mechanical strength suitable for the subbase of a mine haul road.
First Page
49
Last Page
56
DOI
https://doi.org/10.4177/CCGP-D-12-00011.1
Volume
5
Publication Date
1-1-2013
Recommended Citation
Mallick, S.R., Mishra, M.K., 2013, Geotechnical Characterization of Clinker-Stabilized Fly Ash - Coal Mine Overburden Mixes for Subbase of Mine Haul Road. Coal Combustion and Gasification Products 5, 49-56, doi: 10.4177/CCGP-D-12-00011.1
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Bioresource and Agricultural Engineering Commons, Environmental Engineering Commons, Geological Engineering Commons
