ABSTRACT
This chapter presents a review of resonant frequency method of testing concrete nondestructively. The background and the theoretical basis of this method are briefly discussed, and the test method standardized originally by ASTM is detailed. The method of resonant frequency testing using impact is also described. The factors affecting resonant frequency and dynamic modulus of elasticity, study of durability of concrete by means of resonant frequency testing, and the correlations between dynamic modulus of elasticity and static modulus of elasticity and strength properties of concrete are presented. A brief discussion of the damping properties of concrete is also given. Specialized applications of this test method and its usefulness and limitations are discussed. An extensive reference list is included.
