Table 4 Velocity criterion for quality of concrete
From: Cross hole sonic test results for analysis of pile load test
Pulse velocity (km/Sec) | Grading of concrete quality |
|---|---|
>  4.5 | Excellent |
3.5 4.5 | Good |
3.0–3.5 | Fair/Medium |
<  3.5 | Doubtful |
From: Cross hole sonic test results for analysis of pile load test
Pulse velocity (km/Sec) | Grading of concrete quality |
|---|---|
>  4.5 | Excellent |
3.5 4.5 | Good |
3.0–3.5 | Fair/Medium |
<  3.5 | Doubtful |