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

Table 4

Technical indexes of mineral powder.

Item	Unit	Test results	Index value
Apparent density	—	2.825	≥2.5
Hydrophilic coefficient	—	0.73	<1
Plasticity index	%	3.5	<4
Water content	%	0.1	≤1
Mesh size <0.6 mm	%	100	100
Mesh size <0.15 mm	%	95.4	90–100