Table 2. Compressive Strength of Each Specimen.

number	compressive strength (MPa)	number	compressive strength (MPa)
A	1.59	H	0.81
B	1.22	I	0.64
C	0.75	J	1.06
D	0.67	K	0.87
E	0.62	L	0.78
F	1.04	M	0.70
G	0.85