Curing Test Cylinders in Hot Weather

Improper first-day curing of test cylinders during hot weather can cause erroneously low compressive strengths to be measured in the laboratory. This article discusses the ASTM standard curing requirements and how the low strength test results can be avoided. Standard initial curing for test cylinders requires them to be stored immediately after molding, for a period up to 48 hours, in a temperature range from 60 to 80 deg F and in an environment preventing moisture loss. The cylinders must also be shielded from direct sunlight. Homemade or manufactured curing boxes can be effective in reducing moisture loss and maintaining proper temperature.


  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References;
  • Pagination: pp 27-29
  • Serial:
    • Concrete International
    • Volume: 27
    • Issue Number: 5
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 01000258
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 12 2005 9:47AM