Title:
In-Place Methods for Determination of Strength of Concrete
Author(s):
ACI Committee 228
Publication:
Materials Journal
Volume:
85
Issue:
5
Appears on pages(s):
446-471
Keywords:
coefficient of variation; compressive strength; concretes; construction; nondestructive tests; reviews; safety; sampling; statistical analysis; Materials Research
DOI:
10.14359/2334
Date:
9/1/1988
Abstract:
The state of the art in the use of methods for determining the in-place compressive strength of concrete is reported. The methods covered include the rebound hammer, probe penetration, pullout, ultrasonic pulse velocity, maturity, and cast-in-place cylinder. The underlying principles and inherent limitations of each method are discussed. Repeatability of test results is reviewed, and recommendations are given for developing the correlation relationship for each test method. Recommendations are given for the number of tests, and statistical techniques for interpretation of test results are described.