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.

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.

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.

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
References in periodicals archive ?
Zolotas added, "Today, four out of our five bitumen oil tanker vessels are in a time charter contract and one is trading spot which allows for hedging of the bitumen market fluctuations.
Following an MoU signed with the Public Works Authority (Ashgal) in March 2014, Woqod has committed to providing approximately 130,000 tonnes of bitumen and polymer modified bitumen in Ashghal's current and future projects, particularly those included in its five year project plan from 2014 to 2019.
It mirrors our growth strategy because we have enhanced our integration solution in India and consolidated our position as the only company in the region that is actively present in both conventional bitumen and specialty products.
Gulf Petrochem will also upgrade the plant to manufacture bitumen products that adhere to new specifications laid down by Indian Roads Congress.
Index of compressive strength at 50[degrees]C is 43% higher than in case of using the initial bitumen, and 28% higher than in polymer modified binder, indicating a more reliable performance of asphalt concrete pavements using RBV at high summer temperatures.
A large amount of bitumen is used for new buildings and the refurbishment of old ones.
In addition, payment of customs duties on bitumen imported in 2014 for construction, reconstruction and repair of public roads by the subordinate enterprises of Uzbekneftegaz National Company was extended until April 1, 2015.
After activation of bitumen in a super-high frequency field, asphalt was dissolved in chloroform, the spectrogram of which did not have absorption bands in the test area up to the concentration of 0.
In addition, it provides different types and degrees of bitumen related to laying of roads and bridges which suit different weather conditions.
For better understanding of the bitumen market, we have given a detailed analysis of the value chain.
The plant will produce about 400,000 tons of oxidised and 120,000 tons of modified road bitumen, as well as 15,000 tons of gasoline fraction and 230,000 tons of kerosene and diesel fraction, as well as 220,000 tons of vacuum gas oil.
Essentially, satisfactory performance of bitumen on the road can be ensured if four properties are controlled: rheology, cohesion, adhesion and durability.