Determine the Compressive Strength of Calcium Silicate Bricks by Combined Nondestructive Method

Table 1

Test results.

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