THE EFFECT OF TWO DIFFERENT PULVERIZED-FUEL ASHES UPON THE WORKABILITY AND STRENGTH OF CONCRETE

This report describes tests in which different fractions of the cements in a range of concretes were replaced by pulverized-fuel ash (pfa). The effect upon workability was measured by slump, Vebe and compacting factor tests. The compressive strength of the concretes was measured both at 28 days after curing at 20 degrees C and at 14 days after curing at 50 degrees C. It was found that pfa improved workability but reduced strength. However, if the strength C were as strong as or stronger than the controls, but the modified specimens cured at 20 degrees C were always weaker than the controls. The use of two ashes and three cements controls. The use of two ashes and three cements from From different sources had no significant effect upon the results. (Author)

• Corporate Authors:

  Cement and Concrete Association

  Wexham Spring
  Slough SL3 6PL, Buckinghamshire,   England 
• Authors:
  • Brown, J H
• Publication Date: 1980

Media Info

• Features: Figures; References; Tables;
• Pagination: 18 p.

Subject/Index Terms

• TRT Terms: Cement; Compressive strength; Concrete; Pulverized fly ash; Slump test; Workability
• Uncontrolled Terms: Slumps
• Old TRIS Terms: Pulverized fuel ash
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00319323
• Record Type: Publication
• Report/Paper Numbers: Tech Rpt. 536
• Files: TRIS
• Created Date: Jan 19 1981 12:00AM