USE OF WASTE SULFATE FOR REMEDIAL TREATMENT OF SOILS. VOLUME I. DISCUSSION OF RESULTS

The effects of waste sulfate (phosphogypsum from fertilizer manufacture, flue gas desulfurization solids, and neutralized acid mine drainage solids) on physical and strength properties of soils have been studied. Waste sulfate alone has little effect on soil strengths. However, if it is used in combination with lime, higher strengths can be achieved with waste sulfate/lime than can be obtained with equivalent lime treatment because of soil-sulfate-lime reactions. Fly ash can be used with waste sulfate/lime mixtures to improve strengths further. Cement kiln dust has been shown to be an effective substitute for lime as a soil stabilizer. The report is presented in two volumes. Volume I--Discussion of Results--describes the experimental work and contains the interpretation of data and conclusions and recommendations.

• Supplemental Notes:
  • See also Volume 2, PB-278 141.
• Corporate Authors:

  Midwest Research Institute

  425 Volker Boulevard
  Kansas City, MO  United States  64110-2299

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Nebgen, J W
  • Edwards, J G
  • Weatherman, D F
• Publication Date: 1976-8

Media Info

• Pagination: 217 p.

Subject/Index Terms

• TRT Terms: Acids; Air quality management; Calcium oxide; Calcium sulfates; Cement kilns; Compressive strength; Fertilizers; Flue gases; Fly ash; Industrial wastes; Land reclamation; Mines; Ovens; Performance evaluations; Phosphate rock; Phosphates; Regression analysis; Sludge (Deposit); Soil stabilization; Solid waste disposal; Statistical analysis; Subsurface drainage; Sulfates; Waste disposal; Waste products (Materials)
• Old TRIS Terms: Acid mine drainage; Phosphate deposits; Reclamation; Sludge disposal
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00175493
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-76-143 Final Rpt., FCP 34C2-104
• Contract Numbers: DOT-FH-11-8515
• Files: NTIS, TRIS, USDOT
• Created Date: May 31 1978 12:00AM