THE USE OF ACCELERATED STRENGTH TESTS FOR THE SITE CONTROL OF CONCRETE

Previous laboratory studies have developed methods of accelerating the curing of concrete test specimens. This report describes an experiment carried out on a motorway construction site to compare the variabilities of the results of compressive and tensile strength tests obtained from cubes and cylinders which have been subjected to accelerated and 28-day curing. Information in provided on the composition of the overall variabilities which have components arising from variations in materials, processing, sampling and testing. The compressive strengths of specimens subjected to the accelerated curing procedure were significantly less variable than those cured in the normal way for 28 days. The main contribution to the total variability of both sets of strength results was due to variations in production. The accelerated indirect-tensile strengths however were more variable than the 28-day strengths and the contributions of the components of variability to the total variability were not consistent. /AUTHOR/

  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • EDWARDS, A C
    • Franklin, R E
  • Publication Date: 1972

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00291183
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: TRRL Report LR 505 R&D Rept.
  • Files: ITRD, TRIS
  • Created Date: Sep 5 1974 12:00AM