Bitumen product in iran🇮🇷
Mixed bitumen or liquid
Sometimes it is not possible to use solid bitumen directly in road construction operations because due to lack of access to heating equipment or cooling of heated bitumen during work or the need for safety from workers and fires and spending time requires that liquid bitumen be used. River.
Soluble bitumen is obtained by dissolving pure bitumen in petroleum solvents or oils.
The type and quality of soluble bitumens depends on the quality of the original pure bitumen, the type of solvent and the amount of solvent.
The higher the amount of petroleum solvents in the bitumen solution, the greater its fluidity.
Usually, the percentage of solvent used in Iranian soluble bitumens varies from 10 to 50%. Lack of access to bitumen heating devices at high temperatures, cooling of bitumen during operation, impossibility of its penetration into porous minerals, necessity of workers' safety, fire and time consuming cause in some cases soluble bitumen to be used.
In order for bitumen to adhere to wet materials, the soluble bitumen used must have a suitable degree of acidity. Soluble bitumens are used in road construction for surface coatings, columns, surface asphalt, cold factory asphalt or mixtures at the place of use.
Liquid bitumen is actually a mixture of solid or soft bitumen with a suitable solvent.
These bitumens are divided into the following three categories:
- RC bitumens
Delayed bitumen or SC
Slow bit or MC
The above bitumens can be divided into more categories according to viscosity.
Bitumen Trinidad
In Trinidad, bitumen is removed from the crater of a volcano. The closed surface of the bitumen is broken, and the bitumen is removed from under it, which again lubricates the bitumen and fills the place of what was removed.
This bitumen contains impurities (minerals and plant roots). It is melted at 160 ° C and refined, called Trinidad-epure bitumen, and contains 38.5% inorganic bodies, 5.5% in insoluble organic matter.....
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