EFFECT OF LOADING RATE ON THE COMPRESSIVE STRENGTH OF CEMENT MORTAR CUBES

Cement mortar cubes were prepared in accordance with AASHTO Designation T 106-72 and tested for compressive strength at loading rates of approximately 20, 35, 50 65, and 80 seconds at ages of 1, 3, 7, 14, and 28 days. Type I and Type II Cements were used. The data were analyzed statistically to determine if there was a significant difference in compressive strength of mortar cubes when tested over the range of loading rates allowed in T 106-72. It was determined that there is a difference in the compressive strengths of mortar cubes tested at faster loading rates. It was concluded that the effect of loading rate on the compressive strength could be reduced by restricting the allowable range of loading rates to 65-35 seconds.

• Corporate Authors:

  Alabama State Highway Department

  Bureau of Materials and Tests, 1409 Coliseum Blvd
  Montgomery, AL  United States  36130

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Publication Date: 1976-8

Media Info

• Features: Appendices; References; Tables;
• Pagination: 23 p.

Subject/Index Terms

• TRT Terms: Cement mortars; Compressive strength; Concrete bridges; Loads; Statistical analysis
• Uncontrolled Terms: Loading rate
• Subject Areas: Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00158124
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-M-0357, HP&R 80 Final Report
• Contract Numbers: 930-079
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 13 1977 12:00AM