Bitumen 60-70
Bitumen Penetration Grade 60/70 is a standard penetration grade Bitumen usually used as a Paving Grade Bitumen suitable for road construction and for the production of asphalt pavements with superior properties. This grade of Bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. Penetration Grade Bitumen by Voptasch as supplier is petroleum grade bitumen, manufactured from fractional / vacuum distillation of crude oil. The Bitumen supplied by Voptasch is produced from vacuum residue (short residue) feedstock. Penetration Grade 60/70 are specified by the penetration and softening point test. Designation is by penetration range only.
The penetration grade bitumen has a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/viscosity relationship is important when determining the performance parameters such as the adhesion, durability and application temperatures of bitumen.
Requirement for Asphalt cement ASTM D946
Product Specifications Bitumen 60-70
|
Analysis |
Unit |
Limit |
Test Method |
|
Density@25°C |
kg/m³ |
1010-1060 |
ASTM D70 or D3289 |
|
Penetration @ 25°C |
mm/10 |
60-70 |
ASTM D5 |
|
Softening point |
°C |
46 min |
ASTM D36 |
|
Ductility@ 25°C |
cm |
100 min |
ASTM D113 |
|
Loss on heating |
Wt% |
0.2 max |
ASTM D6 |
|
Drop in penetration after heating |
% |
20max |
ASTM D5 |
|
Flash point |
°C |
230 min |
ASTM D92 |
|
Solubility ln Trichloroethylene |
wt% |
99.0 min |
ASTM D2042 |
|
Spot test |
---- |
negative |
AASHTO T102 |
|
Dynamic Viscosity @60°C |
Pa.S |
200±40 |
ASTM D2171 |
|
Kinematic Viscosity @135°C |
cSt |
300 min |
ASTM D2170 |
|
Wax Content |
% |
2max |
DIN EN 12606-1 |
Tests on residue from thin film oven Test (ASTM D1754)
|
Retained Penetration after (T.F.O.T), % |
% |
52 min |
ASTM D5 |
|
Ductility, (25°C), 5cm/min, cm after TFOT |
cm |
50 min |
ASTM D113 |
|
Viscosity at 60°C |
Pa.S |
1000 max |
ASTM D2171 |
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