Accession Number : ADA320774

Title :   An Evaluation of the Maturity Method (ASTM C 1074) for Use in Mass Concrete,

Descriptive Note : Final technical rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS STRUCTURES LAB

Personal Author(s) : Poole, Toy S. ; Harrington, Patrick J.

PDF Url : ADA320774

Report Date : DEC 1996

Pagination or Media Count : 35

Abstract : Maturity parameters were determined on a mass concrete mixture according to American Society for Testing and Materials (ASTM) C 1074. Time-temperature measurements were made on two concrete placements at Red River Lock and Dam 4 for the first 40 to 60 days after placement. These data were used to predict strengths from the concrete's maturity. The placements were also cored to determine in-place strength. Strength development within the first few days of placing were reasonably well predicted by maturity, but predicted and measured strength differed widely after that. Large uncertainties in the maturity parameters were encountered. Probable causes of the large differences and the large uncertainties are discussed and recommendations made on modifications to the procedure for mass concrete.

Descriptors :   *CONCRETE, TEST AND EVALUATION, AGING(MATERIALS), TIME DEPENDENCE, MASS, FLY ASH, STRENGTH(MECHANICS), TEMPERATURE GRADIENTS, PORTLAND CEMENT.

Subject Categories : Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE