Nondestructive Test Methods.
Nondestructive Test Methods.
(5415 K)
Carino, N. J.
Concrete Construction Engineering Handbook. Chapter 19,
CRC Press, Boca Raton, FL, Nawy, E. G., Editor(s),
19/1-68 pp, 1997.
Keywords:
building technology; concretes; flaw detection; in-place
strength; nondestructive testing; statistical methods
Abstract:
This chapter deals with nondestructive testing of
concrete. Test methods are classified into those to
assess in-place strength and those to locate hidden
defects. In the first category, the test methods
include: rebound hammer, ultrasonic pulse velocity,
probe penetration, pullout, break-off, and maturity. In
addition, the statistical methods used to implement
these strength tests are reviewed. In the second
category, a review is presented of visual inspection,
stress wave propagation methods, infrared thermography,
ground penetrating radar, electrical and magnetic
methods, and nuclear (radioactive) methods. The
principles of the methods, their advantages and their
inherent limitations are discussed. Where appropriate,
requirements of relevant ASTM standards are mentioned.
A comprehensive list of references is provided. Most of
this chapter is based on the author's previous papers
and drafts prepared for portions of committee reports.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899