Evaluation of the Use of Coal Combustion By-Products in Highway and Airfield Pavement Construction
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1996-11-01
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Edition:Final: September 1995 - August 1996
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Abstract:The objective of this study was to exploit the beneficiation and utilization of coal combustion by-products (CCBPs) as low-cost alternate aggregates and stabilizers in roadway and airfield construction. A literature review and laboratory investigation were performed to investigate the use of CCBPs in three highway construction applications: (I) fly ash for subgrade stabilization, (2) flue gas desulfurized (FGD) gypsum and Gypsite for base and subbase construction materials, and (3) bottom ash (with sulfur modification) in asphaltic concrete mixtures.
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