Flowable fly ash is a cement stabilizd material that flows into place, either in water or on land. It uses Class F fly ash stabilized with small amounts of portland cement and is defined by the ACI Committee 229 as a controlled low strength material. It has significantly better physical properties than those of conventional structural backfill and is a economically competitive. The development of the material, its strength, field use and costs are discussed. The strength of the material depends on the particular fly ash used and on the amount of portland cement being added. Items to be considered when using flowable fly ash backfill are listed. Flowable fly ash costs vary with the availability and the market. Case histories are described which illustrate cost items besides direct material costs that should be considered.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 54-58
  • Serial:
    • Concrete International
    • Volume: 11
    • Issue Number: 11
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00489447
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 30 1989 12:00AM