Research Article
Determine the Compressive Strength of Calcium Silicate Bricks by Combined Nondestructive Method
| Parameter | Units | Mean | Minimum | Maximum |
| Compressive strength | MPa | 32.4 | 16.5 | 61.5 | Ultrasonic pulse velocity | km/s | 2.514 | 1.952 | 3.078 | Rebound number: Schmidt hammer type L | | 31.5 | 22.7 | 46.3 |
|
|