STUDY TO IMPROVE ASPHALT MIXES IN SOUTH CAROLINA (VOLUME 2): A STUDY OF CRUSHED SLAG AGGREGATES IN HOT MIX ASPHALT

The state of South Carolina contains two slag-producing facilities: a chrome plant in Charleston and a steel plant in Georgetown. There has been some interest shown by the South Carolina Department of Transportation in using slag in construction of state funded roads. Prior to the acceptance of a new aggregate for state funded projects, many tests must be conducted to ensure the product's acceptability. This project was conducted in order to determine if chrome and/or steel slags would be acceptable aggregates in Hot Mix Asphalt (HMA). A literature review was conducted to reveal any past research on this subject. A plan of study was developed to focus on tests that would relate useful characteristics concerning the aggregate. Finally, the tests were performed and evaluated. The report concluded that both chrome and steel slag aggregates can provide satisfactory HMA mixtures if the expansive nature of steel slag aggregates is adequately treated and if the stripping potential of the mixture is counteracted.

• Supplemental Notes:
  • Prepared in cooperation with the U.S. Department of Transportation, Federal Highway Administration.
• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830

  South Carolina Department of Transportation

  Office of Materials and Research
  1406 Shop Road
  Columbia, SC  United States  29201
• Authors:
  • Hanson, D I
  • Lynn, C R
• Publication Date: 1995-7

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 171 p.

Subject/Index Terms

• TRT Terms: Crushed aggregates; Hot mix asphalt; Slag; Slag coarse aggregates; Steel
• Uncontrolled Terms: Steel slag
• Geographic Terms: South Carolina
• Old TRIS Terms: Chrome slag; Slag aggregates
• Subject Areas: Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00723524
• Record Type: Publication
• Report/Paper Numbers: FHWA-SC-95-05,, Final Report
• Files: TRIS, STATEDOT
• Created Date: Jul 5 1996 12:00AM