Viscosity grade bitumen asphalt can be applied on original asphalt which is AC (asphalt cement)grades or aged residue AR(aged residue) grades.
AC grades indicated viscosity at 60 °C actually the number after AC showed 0.01 absolute viscosity in poises at 60 °C. For instance, AC-5 means the bituminous asphalt cement has viscosity of 500 poises at 60°C. The number after AR indicated viscosity in poises at 60 °C. Common AR viscosity grades asphalt cement are AR 1000, AR 2000, AR 4000, AR 8000. AR grades undergo processes in order to simulated the natural conditions.
INTERNATIONAL BITUMEN SUPPLY guarantee to supply the viscosity AR grades in compliance to the mentioned specification in table.
Packing: Bitumen supply is able to provide every packaging according to customers enquiry.
AR grades specification
Tests on Residue from Rolling Thin-Film Oven
Units
AR 1000
AR 2000
AR 4000
AR 8000
Viscosity, 140°F (60°C)
P
1000
2000
4000
8000
Viscosity, 275°F (135°C), Min
Cst
140
200
275
400
Penetration, 77°F (25°C), 100 g, Min
0.1 mm
65
40
25-45
20-50
Ductility at 25˚C, cm, min.
cm
100
75