AN INVESTIGATION OF LOW CYLINDER-STRENGTH (DITRICT 6)

District 6 has had a lingering problem of low cylinder-strengths. This report describes, in detail, an ensuing investigation which incorporated the use of identical materials of concretes used in District 6 and analyses of cylinder data, in situ concrete cores, and laboratory mixtures. The investigation reveal that a high percent of the in situ concrete is sound and reliable, and that aggregate type and (or) air content were not the cause for the low cylinder-strengths. The quality of making, storing, and curing the cylinders were the reasons for low-strength. /Author/

• Record URL:
  https://doi.org/10.13023/KTC.RR.1977.477
• Corporate Authors:

  Kentucky Department of Transportation

  Bureau of Highways
  Frankfort, KY  United States  40601
• Authors:
  • Rahal, A S
• Publication Date: 1977-8

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Aggregates; Air content; Concrete; Concrete curing
• Uncontrolled Terms: Cylinders
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00172362
• Record Type: Publication
• Report/Paper Numbers: Res. Rpt. 477 Final Rpt.
• Contract Numbers: KYP-76-78
• Files: TRIS, STATEDOT
• Created Date: Apr 26 1978 12:00AM