Swelling and Degradation Characteristics of Crumb Rubber Modified Asphalt during Processing

Table 2

Physical properties of crumb rubber.

Test methods	Relative density	Water content (%)	Fiber content (%)	Metal content (%)
Test value	1.08	0.31	0.25	0.03
Screening test
Sieve size (mm)	0.6	0.3	0.15	0.075
Trough rate (%)	98.3	63.4	2.4	0.5