USE OF ENERGY-EFFICIENT SINTERED COAL REFUSE IN LIGHTWEIGHT AGGREGATE

The development and evaluation of a synthetic lightweight aggregate that has particular application to the building and transportation construction industries are described. Bituminous coal refuse, a waste product obtained from five coal-preparaton plants in Kentucky, was successfully sintered on a pilot-sized traveling grate to produce lightweight construction aggregate. An improved sintering-grate process was used. A means is thus provided for using a waste product while gaining an economic advantage during processing from the inherent fuel value of the refuse. A thorough laboratory investigation of the aggregate as a material for use in bituminous concrete mixes and structural lightweight portland cement concrete indicated that a satisfactory aggregate for these construction materials was produced. Using lightweight aggregate from sintered coal-mine refuse in concrete construction offers significant technical and economic incentives from the standpoints of reduced weight and the greatly reduced thermal conductivity of the products formed. (Author)

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• Supplemental Notes:
  • Publication of this paper sponsored by Task Force on Optimizing the Use of Materials and Energy in Construction.
• Authors:
  • Rose, Jerry G
• Conference:
  • 58th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1979-1-15 to 1979-1-19
• Publication Date: 1979

Media Info

• Media Type: Print
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: pp 7-16
• Monograph Title: Copper mill tailings, incinerator residue, low-quality aggregate characteristics and energy savings in construction
• Serial:
  • Transportation Research Record
  • Issue Number: 734
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt concrete; Bituminous coal; Concrete construction; Energy conservation; Lightweight aggregates; Portland cement concrete; Waste products
• Subject Areas: Energy; Environment; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00316668
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Oct 27 1980 12:00AM