TECHNOLOGY FOR USING WASTE SULFATE IN ROAD CONSTRUCTION
The paper reports on a research project to obtain a basic understanding of lime-fly ash-sulfate mixtures with the aim of developing the necessary technology for using sulfate waste in highway construction. This was accomplished by a laboratory evaluation of mixtures containing either lime, fly ash and water, or lime, fly ash, sulfate and water. The initial laboratory task of the program consisted of examining mixtures that contained only pure calcium sulfate or sulfite. Also mineralogical and morphological changes were followed. In the second phase of the program, mixtures incorporating only waste sulfates were examined. Factors that were studied included strength, dimensional stability, permeability, California Bearing Ratio, freeze-thaw resistance, wet-dry stability and leachability. Also aggregate was prepared, evaluated and tested for its suitability in portland cement concrete and asphaltic concrete mixtures.
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Supplemental Notes:
- Proceedings of 4th International Ash Utilization Symposium, St. Louis, Missouri, March 24-25, 1976.
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Corporate Authors:
Energy Research and Development Administration
Morgantown Energy Research Center
Morgantown, WV niaEnergy Research and Development Administration
Morgantown Energy Research Center
Morgantown, WV nia -
Authors:
- SMITH, L M
- Larew, H G
- Conference:
- Publication Date: 1976
Media Info
- Pagination: p. 114-128
Subject/Index Terms
- TRT Terms: Asphalt concrete; California bearing ratio; Freeze thaw durability; Laboratory studies; Lime fly ash; Permeability; Portland cement concrete; Road construction; Road materials; Salvage; Strength of materials; Sulfates; Sulfur compounds; Wastes
- Old TRIS Terms: Waste sulfate
- Subject Areas: Environment; Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00164966
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: MERC/SP-76/4 Proceeding, CONF-760322, CONG-760322
- Files: TRIS
- Created Date: May 18 1978 12:00AM