The Effect of Wetfix and Nanohydrated Lime Additives on Bitumen Aging and the Cohesion and Adhesion Failure Mechanisms of Hot Asphalt Mixtures

Table 9

t-test results on the ITSM for base condition.

Variable	Obs.	State	PG64-16, limestone		PG58-22, limestone		PG64-16, granite		PG58-22, granite
			t	P-value	t	P-value	t	P-value	t	P-value
Control Wetfix (0.4%)	66	Dry	−9.5685	0.0000	−6.2802	0.0001	−5.6596	0.0001	−7.1640	0.0000
Control nano-HL (1%)	66	Dry	−12.4587	0.0000	−6.2620	0.0001	−5.1211	0.0004	−7.6064	0.0000
Control Wetfix (0.4%)	66	Wet	−7.7002	0.0000	−5.2513	0.0004	−3.5700	0.0000	−5.6418	0.0002
Control nano-HL (1%)	66	Wet	−6.0524	0.0001	−7.3790	0.0000	−5.7094	0.0002	−8.2155	0.0000