Influences of Microwave Irradiation on the Physicomechanical Properties and Cerchar Abrasivity Index of Rocks

Table 4

Comparison of CAI values of the basalt samples before and after microwave irradiation.

Serial no. of samples	Scratch direction	Measurements after rotating for 120°			Average CAI	Duration (s)	Measurements after rotating for 120°			Average CAI
1-1	Horizontal	2.72	2.68	2.72	2.75	10	2.67	2.61	2.58	2.68
	Vertical	2.83	2.86	2.76			2.62	3.00	2.61
1-2	Horizontal	2.9	2.83	2.82	2.82	20	2.65	2.41	2.72	2.56
	Vertical	2.86	2.72	2.79			2.54	2.54	2.54
1-3	Horizontal	2.58	2.51	2.51	2.65	30	2.47	2.54	2.51	2.46
	Vertical	2.75	2.72	2.86			2.44	2.40	2.47
1-4	Horizontal	2.72	2.58	2.58	2.66	40	2.40	2.44	2.43	2.28
	Vertical	2.79	2.65	2.68			2.07	2.29	2.09
1-5	Horizontal	2.69	2.62	2.62	2.76	50	1.98	1.98	2.01	2.00
	Vertical	2.86	2.93	2.90			2.01	1.98	2.01