Product Overview
Description
Asphalt also known as bitumen is a sticky, black and highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product; it is a substance classed as a pitch.
Until the 20th century, the term asphaltum was also used. The word is derived from the Greek 'asphaltos' which in turn was borrowed from an Eastern word.
The primary use of asphalt/bitumen is in road construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs.
The terms asphalt and bitumen are often used interchangeably to mean both natural and manufactured forms of the substance. In English, asphalt is the carefully refined residue from the distillation process of selected crude oils. This product is often called bitumen. Geologists often prefer the term bitumen. Common usage often refers to various forms of asphalt/bitumen as "tar".
PENETRATION BITUMEN 60/70 |
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· SPECIFIC GRAVITY | 1.01-1.06 | D.70 |
· PENETRATION @ 25 C | 60/70 | D.5 |
· SOFTENING POINT | 49/56 | D.36 |
· DUCTILITY @ 25 C | 100 MIN | D.113 |
· LOSS OF THE HEATING %WT | 0.2 MAX | D.6 |
· FLASH POINT | 250 MIN | D.92 |
· SOLUBILITY IN CS2 % WT | 99.05 MIN | D.4 |
· DROP IN PENETR. AFTER HEAT. % | 20 Max | D.5 |
· DENSITY @ 25 C | 1.01/1.06 | D.70 & D.3289 |
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