FLY ASH, SLAG, SILICA FUME, AND RICE-HUSK ASH IN CONCRETE: A REVIEW

Environmental problems associated with waste product disposal, resource conservation considerations, and the cost of portland cement will demand the increasing use of of fly ash, slag, condensed silica fume and rice-husk ash in the production of cement and ready-mixed and precast concretes. This article discusses this issue, the properties and limitations of these materials, and the effects that this will have on concrete properties. It is noted that North American trends indicate preference for the separate batching of these materials at concrete-batching plants rather than the intergrinding with portland cement clinker at a cement plant. This, however, is not advised in developing countries. It is also noted that recent developments in chemical admixtures, especially the introduction of superplasticizers, will increasingly facilitate the incorporation of supplementary cementing materials in concrete. Technology transfer needs are also noted.

Language

  • English

Media Info

  • Pagination: p. 23-28
  • Serial:
    • Concrete International
    • Volume: 15
    • Issue Number: 4
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00627716
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Apr 15 1993 12:00AM