Title:
Statistical Acceptance Criteria for Strength of Mass Concrete
Author(s):
Ernest Schrader
Publication:
Concrete International
Volume:
29
Issue:
6
Appears on pages(s):
57-61
Keywords:
acceptance criteria; mass concrete; compressive strength; characteristic strength; dam
DOI:
Date:
6/1/2007
Abstract:
For structural concrete, the practice of requiring an average strength that will statistically assure that no more than a designated percentage of test results fall below a designated design strength has been adopted throughout the world. The concept is also applicable to dams, but it requires adaptation to the unique aspects of mass concrete. These aspects and examples of acceptance criteria for dam structures are presented following a discussion of the confusion between the internationally used term, characteristic strength, and U.S. terms used to describe concrete compressive strength.