Ultrasonic pulse velocity test

Ultrasonic Pulse Velocity can be used to: • Evaluate the quality and homogeneity of concrete materials • Predict the strength of concrete • Evaluate dynamic modulus of elasticity of concrete, • Estimate the depth of cracks in concrete. • Detect internal flaws, cracks, honeycombing, and poor patches. The test can also be used to evaluate the effectiveness of crack repair. == Regulation and standards ==

A procedure for ultrasonic testing is outlined in ASTM C597 - 09. In India, till 2018 ultrasonic testing was conducted according to IS 13311-1992.From 2018, procedure and specification for Ultrasonic pulse velocity test is outlined in IS 516 Part 5:Non destructive testing of concrete Section 1:Ultrasonic Pulse Velocity Testing. This test indicates the quality of workmanship and to find the cracks and defects in concrete. ==Factors affecting testing==

The important factors that affect/influence the ultrasonic pulse velocity test are: • Surface Conditions of Concrete • Moisture Content of Concrete • Path Length of Concrete Structure • Shape and Size of Concrete Structure • Temperature of Concrete • Stress to Which the Structure is Subjected • Reinforcing Bars • Contact Between the Transducer and Concrete • Cracks and Voids in Concrete • Density and Modulus of Elasticity of Aggregate ==Usage==

This test is recommended in some of testing done by the Indian government to certify and check construction of residential buildings. == References ==