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 viscosity grades asphalt cement are AC-2.5,AC-5,AC-10,AC-20, AC-30,AC-40. AC 20 is a designed bituminous asphalt which is mostly
used in hot climate because the viscosity is high.
INTERNATIONAL BITUMEN SUPPLY guarantee to supply the viscosity grade AC 20 in compliance to
the mentioned specification in table.
Packing: Bitumen supply is able to provide every packaging according to customers enquiry.
AC grades specifications
Specifics
Unit
AC 2.5
AC 5
AC 10
AC20
AC30
AC40
Test method
Kinematic viscosity @ 60C
p
250
500
1000
2000
3000
4000
ASTM D2171
Kinematic viscosity @ 135C
cSt
80
110
150
210
300
Flash point , C
°C
163
177
219
232
ASTM D92
Solubility in trichloroethylene %
%
99
ASTM D 2042
Penetration in 25 C
0.1 mm
200
120
70
40
30
20
ASTM D5
Tests on residue from thin-film oven test
1250
2500
5000
10000
15000
20000
Ductility, 77°F (25°C), 5cm/min, Min
cm
100
50
15
10
ASTM D113