Bitumen 30/40 is a hard grade of bitumen. This grade is one of the most used bitumen grades for road construction in tropical areas. As the hot weather of these regions can be a challenge for mixtures of asphalt, bitumen 30/40 is offered due to its high air blowing and penetration value.
Bitumen grade 30/40 is produced from the vacuum residue in a refinery.
Specification of Bitumen Penetration Grade 30/40 |
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CHARACTERISTICS |
TEST METHOD |
UNIT |
MIN. |
MAX. |
Specific Gravity at 25°C |
ASTM D70 |
°C |
1.01 |
1.05 |
Penetration at 25°C, 100g, 5s |
ASTM D5 |
mm |
30 |
40 |
Softening Point |
ASTM D36 |
°C |
51 |
60 |
Ductility at 25°C |
ASTM D113 |
Cm |
100 |
|
Loss on heating |
ASTM D6 |
% |
0.5 |
|
Drop in penetration after heating |
ASTM D5 |
% |
20 |
|
Flash point |
ASTM D92 |
°C |
250 |
|
Solubility in Trichloroethylene |
ASTM D2042 |
% |
99.5 |