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Nondestructive Testing of Concrete: History and Challenges.


pdf icon Nondestructive Testing of Concrete: History and Challenges. (2608 K)
Carino, N. J.

American Concrete Institute (ACI). Concrete Technology: Past, Present and Future. ACI SP-144. 1994, American Concrete Inst., Detroit, MI, 623-678 pp, 1994.

Keywords:

concretes; infrared spectroscopy; in-place testing; nondestructive tests; penetration tests; probes; pullout tests; radar; rebound hammer; statistical methods; tests; thermography; ultrasonic tests

Abstract:

A brief history of nondestructive testing of hardened concrete over the past 50 years is presented. The contributions of V. M. Malhotra towards the development and promotion of nondestructive testing are emphasized. The underlying principles and inherent limitations of the methods are reviewed, and historical highlights of their development are presented. Test methods are grouped into those which assess in-place strength and those which evaluate non-strength characteristics, such as flaws and deterioration. The paper concludes with a discussion of the challenges for the 21st century in the area of nondestructive testing.