HIGH FLY ASH CONTENT CONCRETE: A REVIEW AND A CASE HISTORY. CONCRETE DURABILITY. KATHERINE AND BRYANT MATHER INTERNATIONAL CONFERENCE, HELD AT ATLANTA, GEORGIA, USA, 27 APRIL-MAY 1987

Concretes containing large quantities of flyash have now been used in the UK and elsewhere for some ten years. This type of concrete, which has become known as high flyash content concrete (hfcc), was originally developed as a roller-compacted concrete for dams. The mix proportions of hfcc are designed considering the flyash to be an integral ingredient in the concrete as opposed to a portland cement replacement. The uses of hfcc have now been extended to road construction and structural concrete, including high-workability and high-strength concretes. Throughout the development of hfcc, testing of the concrete in-situ has been considered to be of paramount importance in addition to the usual laboratory trials. This paper traces the development of hfcc and considers a particular case history in which a direct comparison was made, over a period of four years, between two airfield pavements. One pavement contained conventional portland cement concrete and the other high flyash content concrete. The results of testing for cube and core compressive strength and flexural strength are presented together with the results of a limited number of tests of the 4-year old pavement for durability. The paper concludes that in this particular case, both pavements exhibited comparable strength and durability characteristics generally, although the hfcc pavement seemed to have better weathering and abrasion resistance as well as a significant economic advantage. (Author/TRRL)

• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Dunstan, M
  • Joyce, R
• Publication Date: 1987

Media Info

• Features: References;
• Pagination: p. 1411-43
• Serial:
  • Publication of: American Concrete Institute
  • Publisher: American Concrete Institute

Subject/Index Terms

• TRT Terms: Abrasion resistance; Concrete; Concrete pavements; Concrete structures; Concrete tests; Conferences; Field tests; Fly ash; Paving; Portland cement concrete; Strength of materials; Weathering
• Uncontrolled Terms: Concrete strength
• Old TRIS Terms: Insitu methods
• ITRD Terms: 4758: Cement; 5532: Compression; 4755: Concrete; 8525: Conference; 5586: Deflection; 5910: Durability; 4580: Fly ash; 6226: In situ; 4714: Mix design; 2964: Rigid pavement; 5544: Strength (mater); 6255: Test; 5281: Weathering
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways;

Filing Info

• Accession Number: 00470565
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 31 1988 12:00AM