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Sulfate-Resistant Portland Cement from Lime-Soda Sinter Process Residue

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Abstract

A by-product (residue) from the Ames Lime-Soda Sinter Process for recovering alumina from power plant fly ash consists largely of dicalcium silicate and can be used as a raw material for the manufacture of sulfate-resistant (Type V) portland cement. Utilization of the residue will eliminate the need for its disposal and will improve the economic feasibility of the lime-soda sinter process. Laboratory burnability tests were used to identify optimum cement mixes and burning temperatures from both clinker quality and economic perspectives. At a typical kiln temperature of 1450°C, cements that formed concrete that exceeded ASTM specifications for strength were obtained for a limited range of lime-saturation factors and silica ratios. A highly conservative cost estimate for a combined alumina recovery and cement manufacturing facility for a 1000 MWe coal-fired power station gave a 4.7% internal rate of return.

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Authors and Affiliations

  1. Construction Technology Laboratories, Inc., 5420 Old Orchard Road, 60077, Skokie, IL, USA

    J. A. Chesley

  2. Ames Laboratory, U.S.D.O.E. and Department of Chemical Engineering, Iowa State University, 50011, Ames, IA, USA

    G. Burnet

Authors
  1. J. A. Chesley
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  2. G. Burnet
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Chesley, J.A., Burnet, G. Sulfate-Resistant Portland Cement from Lime-Soda Sinter Process Residue. MRS Online Proceedings Library 113, 163–171 (1987). https://doi.org/10.1557/PROC-113-163

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  • DOI: https://doi.org/10.1557/PROC-113-163

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