GAP-GRADED CONCRETE FOR PAVING CONSTRUCTION

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

• Features: Figures; References; Tables;
• Pagination: p. 227-237
• Serial:
  • Journal of the Construction Division
  • Volume: 102N
  • Issue Number: C01AS

Subject/Index Terms

• TRT Terms: Admixtures; Coarse aggregates; Concrete pavements; Construction; Costs; Gap grading; Pavement performance; Paving
• Uncontrolled Terms: Construction costs
• Subject Areas: Construction; Finance; Highways; Materials;

Filing Info

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