Material Composition Design and Anticracking Performance Evaluation of Asphalt Rubber Stress-Absorbing Membrane Interlayer (AR-SAMI)

Table 2

Main technical indexes of rubber powder.

Items	Measured value	Specification limits	Cited specifications
Relative density	1.19	1.10∼1.30	JT/T 798-2011
Water content (%)	0.48	<1
Metal content (%)	0.023	<0.05
Fiber content (%)	0.45	<1
Ash content (%)	3.9	≤8
Acetone extracts (%)	14	≤22
Carbon black content (%)	43	≥28