Evaluation of Permanent Deformation of Unmodified and Rubber-Reinforced SMA Asphalt Mixtures Using Dynamic Creep Test

Table 3

Specification of crumb rubber used in this study.

Chemical and physical properties	Rubber size
	30 mesh
Acetone extract (ISO 1407), %	10 ± 3
Ash content (ISO), %	8 ± 3
Carbon black (ISO 1408), %	30 ± 5
Rubber hydrocarbon (RHC), %	52 ± 5
Passing (ASTM D5644), %	>90
Heat loss (ASTM D1509), %	<1
Metal content (ASTM D5603), %	<1
Fiber content (ASTM D5603), %	<3