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  USA  64110-2299

    Federal Highway Administration

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

Media Info

  • Pagination: 217 p.

Subject/Index Terms

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