| Type: | Roofing and Waterproofing |
|---|---|
| Ceiling Tile Shape: | Roll |
| Material: | PVC |
| Ceiling Tile Type: | Mineral Wool Ceilings |
| Surface Treatment: | Spray Painted |
| Function: | Anti-Static, Fireproof, Heat Insulation, Sound-Absorbing |
| Customization: |
|---|
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Petroleum bitumen is often confused with tar. Although bitumen and coal tar are similarly black and sticky, they are distinctly different substances in origin, chemical composition and in their properties. Coal tar is produced by heating coal to extremely high temperatures and is a by-product of gas and coke production. It was widely used as the binding agent in road asphalt in the early part of the last century, but has since been replaced by refined bitumen.
Bitumen is also sometimes confused with petroleum pitch which, although also derived from crude oil, is a substance produced by a different process from that used for refined bitumen. Petroleum pitches are the residues from the extreme heat treatment or "cracking" of petroleum fractions. Their properties and chemical composition are therefore quite different from those of bitumen.
Naturally-occurring bitumen, sometimes also called natural asphalt, rock asphalt, lake asphalt or oil sand, has been used as an adhesive, sealant and waterproofing agent for over 8,000 years. But it occurs only in small quantities and its properties are quite different from refined bitumen.
United Petrolexporting Bitumen with origin of Canada, Korea, Singapore, Malaysia, Qatar, Argentina and Bahrain including Bitumen 10/20 , Bitumen 20/30 ,Bitumen 30/40 ,Bitumen 40/50 ,Bitumen 60/70 , Bitumen 80/100 , Bitumen 100/120.
Bitumen is produced from selected crude oils through a process of fractional distillation. The crude oil is heated to temperatures of between 300 and 350 degrees Celsius and fed into a distillation column allowing the lightest fractions of the crude to separate, through vaporization, from the heavier fractions, which remain liquid.
The higher boiling point fractions are then drawn - off via a heat exchanger and enter a vacuum distillation column. This process produces a "short residue" that is used to manufacture several grades of bitumen. The pressure and temperature conditions within the vacuum process will determine the hardness of the short residue, and as such the grade of bitumen produced. The short residue may be further modified by 'air blowing' in which air is passed through the residue at temperatures of 250 - 300 degrees Celsius.
The above are the typical Penetration or Paving Grades of bitumen
Bitumen 60/70 has the highest-boiling point, heaviest and most polar fraction from the vacuum distillation of crude oil. Bitumen 60 70 is composed of asphaltene and maltene. The heavy insoluble asphaltene molecules give bitumen 60/70 its body and softening point while the maltenes are oily and make asphalt flexible. Asphaltene molecules are soluble in aromatic solvents like toluene but insoluble in heptane. The maltenes are heptane-soluble molecules and less aromatic.
Penetration grade bitumen supplied by ATDM is pure petroleum grade bitumen, manufactured from vacuum bottom by passing hot air. The bitumen supplied by ATDM is produced from remain of crude oil after cracking and removing hydrocarbon. Penetration grade bitumen 60/70 has penetration between 60~70 desi-millimeter and softening point between 48 ~ 52C. The penetration grade bitumen 60/70 has a thermoplastic property which is like as synthetic resin material which gets softer with heating and hardens when cooled. This grade of bitumen 60/70 has very strong viscosity compare to other grades.
ATDM guaranty the quality of bitumen 60/70 with arrangement of international inspector to check quality and quantity of the bitumen during the loading to vessel and controlling the production by QC by batch test report before shipping. ATDM guaranty the quality to meet with ASTM/EN 12591.
It is 180 (+/-2.5) Kg New Steel Drum, Original Package, 0.6 mm thickness of Drum // Each 20" FCL: 110 Drums
Specification of penetration bitumen 60/70
|
Bitumen 60/70 |
Specification |
Test method |
|
Specific gravity @ 25/25 cg |
1.01/1.06 |
D-70 |
|
Penetration @ 25 c |
70/60 |
D-5 |
|
Softening point c |
48/52 |
D-36 |
|
Ductility @25 c |
100 min |
D-113 |
|
Loss on heating(wt) % |
0.2 Max |
D-6 |
|
Drop in penetration after heating % |
20 Max |
D-6 D-5 |
|
Flash point c |
250 min |
D-92 |
|
Solubility is CS2(wt) % |
99.5 Max |
D-4 |
|
Spot test |
negative |
A.A.S.H.O.T102 |
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