Results of a laboratory investigation and a full-scale highway experiment on National Highway No. 2 between Delhi and Agra with gap-graded concrete are reported. The findings indicate that good concrete mixes can be prepared with gap-graded coarse aggregate. Gap-graded concrete leads to about 5%-8% economy in the costs of pavement construction. The economy is enhanced to 8%-12%, when coarse sand conforming to the specification costs more than the fine sand and fine sand is blended with the coarse sand to the extent of 20%-50% of the total quantity of fine aggregate. Performance of the experimental gap-graded concrete pavement sections under heavy traffic over a period of 5 yr has been observed to be somewhat superior to that of the section using continuously graded concrete.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Ghosh, R K
    • Chatterjee, M R
  • Publication Date: 0

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00139727
  • Record Type: Publication
  • Report/Paper Numbers: CE #11988
  • Files: TRIS
  • Created Date: Sep 21 1976 12:00AM