Bitumen Penetration Grade
ASTM Standard – Bitumen 60/70
The Bitumen 60/7- grade to build roads and highways, bitumen penetration grade 60/70 is frequently employed because to its excellent weather resistance and capacity to function effectively in a variety of temperature ranges. It is also employed as a binder in asphalt concrete mixtures and in the production of bituminous.
Bitumen Grade 60/70 is produced in compliance and conformity to International Standards such as AASHTO M20-70 & ASTM D946, also, meets the following specification requirements.
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, rheology, durability, and application temperatures of bitumen.
Cutback RC 250
Rapid Curing 250 RC250 a combination of penetration grade asphalt cement and a diluent or cutter highly rapid in its volatility making it easier to apply.
Cutback MC 800
Rapid Curing 800 MC800 a combination of penetration grade asphalt cement and a diluent or cutter highly rapid in its volatility making it easier to apply.
Application
Bitumen 60/70 is commonly used to produce hot mix asphalt for the base and wearing courses. a thinner pavement design Usage: The main common usage of bitumen 60/70 is being used in the manufacturing of hot mix asphalt for the base and wearing courses. Due to its high level of viscosity, it enables a thinner pavement engineering design and an overall 30 percent reduction in the amount of asphalt being applied. The bitumen is provided during the presses of oxidation of vacuum bottom in bitumen production units. Due to its medium air blowing and penetration, it is used in mild areas.
Specification
No |
Description_60/70 |
Unit |
60/70 Grade |
Test Method |
|---|---|---|---|---|
1
|
Specific Gravity @ 25°C
|
Kg/Cm3
|
1.01/1.06
|
ASTM D70
|
2
|
Penetration @ 25°C
|
MM/10
|
60/70
|
ASTM D5
|
3
|
Softening Point °C
|
°C
|
48/56
|
ASTM D36
|
4
|
Ductility @ 25°C
|
CM
|
100 Min
|
ASTM D113
|
5
|
Loss on Heating (wt) %
|
WT %
|
0.2 Max
|
ASTM D6
|
6
|
Drop in Penetration after Heating %
|
%
|
20 Max
|
ASTM D5-D6
|
7
|
Flash Point °C
|
°C
|
250 Min
|
ASTM D92
|
8
|
Solubility in Trichloroethylene (wt) %
|
WT %
|
99.0 Min
|
ASTM D2042
|
9
|
After Thin-Film Oven Test (TFOT)
|
-
|
-
|
ASTM D1754
|
10
|
Retained Penetration
|
%
|
52
|
ASTM D5
|
11
|
Increase In Softening Point
|
C
|
9 max
|
ASTM D 70
|
12
|
Ductility
|
CM
|
50 min
|
ASTM D 113
|
13
|
Loss on Heating (wt) %
|
WT %
|
0.2 Max
|
ASTM D6
|
14
|
Spot Test
|
@
|
Negative
|
AASHOT 102
|
Safe Handling and Storage
- Use Personal Protective Equipment (PPE’s) when handling (i.e. gloves, eye protectors, etc.
- Maintain safe heating temperatures when using this product.
- Avoid contact with skin, eyes and clothing.
- Avoid breathing vapor, spray or mists when applying.
Packaging
Penetration graded Bitumen 60/70 is available in 0.6 mm thickness, 180 kg net weight drums, 95 cm height and 45 cm diameter (+/- 3 kg operational tolerance).
Drums
Keep drums in a cool, well-ventilated place.
