Research of the Rheological Modification Mechanism of Crumb Rubber-Modified Asphalt Containing Polyamide 6 Additive

Table 3

Test results of crumb rubber-modified asphalt.

Property		Unit (mm)	Crumb rubber (%)
			0	10	15	20	30
Penetration	15°C	0.1	26.1	20.4	16.7	14.6	13.7
	25°C		69.3	63.3	53.6	50.3	45.9
	30°C		115.4	88.5	79.8	66.5	56.5
PI			−0.825	−0.425	−0.348	−0.189	0.029