Influence of velocity on local weathered granite properties

The non-destructive technique (NDT) such as for determined the velocity is an easy technique to apply and they are increasingly being used in geotechnical engineering. Most researchers studied the relations between rock properties and velocity and found that the velocity is closely related with rock properties. Wave velocity can be measured directly or indirectly in the laboratory. In this study, the wave velocity in rock was measured by detecting the arrival time or travel speed in rocks using a Free-free Resonant Column (FFRC). Various weathering grade of granite samples were used to determine velocity and other properties. The result shows that the velocity have a good correlation with other properties on various weathering grade of granite.