ASPHALT TYPICAL PROPERTIES

Bitumens are normally classified in terms of specification tests which relate properties to the requirements of the intended application. Current specifications differ from country to country and CEN standards are to be introduced in 1993. The properties of bitumens would normally be expected to fall in the following ranges:

Physical properties of bitumens

Property Units Method Penetration Hard Oxidized
Penetration at 25°C
Ring & ball softening point
Boiling range
Flash point closed cup
Viscosity at 60°C
Viscosity at 135°C
Viscosity at 200°C
Density
TFOT mass change

0.1 mm
°C 
°C 
°C
mm2/s mm2/s mm2/s
 kg/m3 
%

ASTM D 5
ASTM D 36
ASTM D 2887
ASTM D 92
ASTM D 2171
ASTM D 2170
ASTM D 2170
ASTM D 70
ASTM D 175

40-300
30-60
> 470
> 230
200-2500
80-400
N/A 
1000-1050 
< 2.0

15-40
60-75
  > 550
> 250
N/A
300-1500
N/A
1020-1050
< 2.0

 0-55
  60-130
> 400
  > 250
  N/A
  N/A
100-1000
  1000-1050
  < 2.0

* TFOT = Thin Film Oven Test, 5 hours at 163°C.

N/A = Not Applicable

Properties and tests of bitumen derivatives vary widely with product type and product application.

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