Experimental Study on the Effect of Large Temperature Difference on Compressive Strength and Pore Structure of Semirigid Base

Table 4

Uniaxial compression experimental results of semirigid base material under the temperature range of −20°C∼20°C.

Number of cycles	Parallel strength test value (Mpa)			Intensity representative value (MPa)	Standard deviation	Coefficient of variation (%)
0	10.61	12.82	14.06	12.50	1.75	13.95
3	11.00	11.50	13.49	12.00	1.32	10.98
6	9.61	12.61	9.79	10.67	1.68	15.77
9	8.61	8.72	8.89	8.74	0.14	1.61
12	7.47	8.21	6.78	7.49	0.72	9.55
15	6.59	5.38	6.53	6.16	0.67	10.93