Evaluation of Fly Ash From Co-Combustion of Coal and Petroleum Coke for Use in Concrete

This paper investigates fly ash (FA) -- produced from various blends of coal and petroleum coke (pet coke) -- that is fired at Belledune Generating Station in New Brunswick, Canada. Testing is conducted to establish how this FA blend performs and complies with CSA A3000, relative to FA that is derived from coal-only combustion. FA samples are beneficiated via an electrostatic separation process designed to produce testing samples comprised of a range of loss-on-ignition (LOI) values. Results show that pet coke combustion produces very little inorganic residue (i.e., less than 0.5% ash). The main impact on FA is an increase in the unburned carbon content and LOI values that result from the co-combustion of coal and up to 25% pet coke. After beneficiation, FA testing indicates that FA produced from fuels containing up to 25% pet coke performs as well as FA that is produced from the same coal absent pet coke.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Authors:
  • Scott, Allan N
  • Thomas, Michael D A
• Publication Date: 2007-1

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 62-69
• Serial:
  • ACI Materials Journal
  • Volume: 104
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Beneficiation; Carbon; Coal; Coke; Combustion; Concrete; Durability; Electrostatics; Evaluation and assessment; Fly ash; Fuels; Inorganic compounds; Materials tests; Measurement; Mechanical analysis; Performance measurement; Petroleum; Samples; Waste products (Materials)
• Identifier Terms: Belledune Generating Station
• Uncontrolled Terms: Co-combustion
• Geographic Terms: Canada; New Brunswick
• Subject Areas: Energy; Geotechnology; Highways; Materials; I32: Concrete; I36: Aggregates;

Filing Info

• Accession Number: 01045281
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 2007 7:03AM