Cross-Hole Sonic Logging (CSL) — Sonic Test This is a high accuracy ultrasonic test, usually for bored piles with tubes. How it is done 1. Install CSL tubes inside pile cage before concreting. 2. After concrete sets, fill the tubes with water. 3. Lower transmitter in one tube and receiver in another. 4. Ultrasonic waves travel through the concrete between the tubes. 5. Device measures how fast or slow the wave passes. What CSL tells you • Very accurate detection of honeycombing • Weak concrete z

Crosshole Sonic Logging is a testing method for drilled shafts and excavations to determine the integrity of a concrete pile. In this video, the basics of crosshole sonic logging are explained, along with CHAMP-Q testing equipment by PDI. To learn more, go to https://hubs.la/Q03P9K_D0 #PileDynamics #concretetest #integritytesting #drilledshaft | Pile Dynamics, Inc