Compressive strength of lime-fly ash concrete mix in the initial stages of hardening is found to be greatly influenced by the curing period and temperature. Rastrup's maturity combining the curing parameters could be related to the observed unconfined compressive strength of the mix and expressed mathematically. Since the flexural strength may be the criterion for thickness design of pozzolanic base courses, a mathematical relationship between the observed compressive and flexural strengths of the material matured under identical curing conditions has also been developed. The mix exhibited adequate strength in flexure when it was matured to Rastrup's value of about 450 days. Under the prevalent summer season of the tropical areas of India, the mix can be matured to the above extent in a reasonable curing period of about 35 days. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    India Highway Research Board

    Jamnagar House, Shahjahan Road
    New Delhi,   India 
  • Authors:
    • Arora, M G
    • Khanna, S K
  • Publication Date: 1976

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00310109
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM