Title:
In situ strength evaluation of con-crete
Author(s):
V.M. Malhotra
Publication:
Concrete International
Volume:
1
Issue:
9
Appears on pages(s):
40-42
Keywords:
concrete construction; inspection;
nondestructive tests; penetration tests; pullout tests;
strength; tests; ultrasonic tests.
DOI:
Date:
9/1/1979
Abstract:
This article reports on a symposium on in-situ strength evaluation of concrete, sponsored by ACI and held in November 1978 at Houston, Tex. A total of 14 papers were presented. They dealt with penetration resistance, pullout, break off, pulse velocity, maturity concept, and combined methods. The presentations and the discussions that followed revealed that, apart from the pulse velocity techniques, the other methods were relatively new, but were slowly finding ac-ceptance in the concrete and construction in-dustries. Of all the methods discussed at the symposium, the pullout techniques appear to be the most promising for determining the in situ strength of concrete. [Author]