bitumen


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bitumen

(bĭtyo͞o`mən) a generic term referring to flammable, brown or black mixtures of tarlike hydrocarbons, derived naturally or by distillation from petroleum. It can be in the form of a viscous oil to a brittle solid, including asphalt, tars, and natural mineral waxes. Substances containing bitumens are called bituminous, e.g., bituminous coal, tar, or pitch.
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bitumen

[bī′tü·mən]
(materials)
Naturally occurring or pyrolytically obtained substances of dark to black color consisting almost entirely of carbon and hydrogen, with very little oxygen, nitrogen, or sulfur.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

bitumen

A semisolid mixture of complex hydrocarbons derived from coal or petroleum, as coal-tar pitch or asphalt; before application, usually dissolved in a solvent, emulsified, or heated to a liquid state.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

bitumen

1. any of various viscous or solid impure mixtures of hydrocarbons that occur naturally in asphalt, tar, mineral waxes, etc.: used as a road surfacing and roofing material
2. the constituents of coal that can be extracted by an organic solvent
3. any liquid suitable for coating aggregates
4. the bitumen
a. Austral and NZ informal any road with a bitumen surface
b. Austral informal the road in the Northern Territory between Darwin and Alice Springs
5. a transparent brown pigment or glaze made from asphalt
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
The future of the bitumen emulsifier market looks promising with opportunities in the roadways, roofing, and other markets.
Bootle Docks, where the proposed bitumen plant would be located JASON ROBERTS
If the government is sincere and determined to translate the wealth of the nation into better lives for citizens, bitumen can be a catalyst for ushering in economic boom and putting an end to the frustration consistently expressed by the people of Nigeria's bitumen belt.
Executives of global polymer modified bitumen (PMB) companies that are engaged in the polymer modified bitumen (PMB) production and exporting
Mr Tampuli said that the move would also streamline the operations of bitumen marketers and enable the NPA commence the process of regulating bitumen consumption.
Earlier, it was announced in mid-January that Iranian researchers had produced a new type of state-of-the-art bitumen based on the global standards whose quality could change based on the volume of traffic.
As asserted by Shell bitumen regional manager for Asia Thanes Rajatapiti, the facility "adds to Shell's strong regional network and will boost our supply reliability as we anticipate growth in demand for high-quality bitumen not only in the Philippines but across the region."
The thromde will now identify the roads where the polymerized bitumen will be used.
PSPC president and CEO Cesar Romero said the bitumen facility has been mechanically completed in the first quarter and is being tested to produce asphalt.
The company is looking at exporting it within Southeast Asia, which, Romero said, 'is short on bitumen, including probably China.'
At the same time, most of the used aggregates have a greater affinity for water than they do for bitumen binder [1-3].