Characteristics of oil bitumens depending on the type and material of crude oil, quantity and quality of hydrocarbons
Ingredients and distillation method.
Bitumens used in the road construction industry
It is divided as follows:
Pure bitumen
Soluble bitumen
Emulsion bitumens
(Pure bitumen)
Bitumens obtained directly from the distillation tower in the refinery vacuum are called pure bitumens.
Pure bitumens deform into liquid due to pressure and heat, and at low temperatures, they have elastic and springy states.
Pure bitumen for road construction is classified according to the degree of penetration, viscosity, performance.
(Soluble bitumens)
Soluble bitumen is obtained by dissolving pure bitumen in solvents or petroleum oils.
The higher the amount of petroleum solvents in the bitumen solution, the greater its fluidity.
Usually the percentage of solvent used in bitumen
The solution varies from five percent to 60 percent.
Soluble bitumen is used in the construction and modification of pavements.
(Emulsion bitumens)
Emulsion bitumen is obtained by mixing bitumen and water with an emulsifier.
In this mixture, bitumen with dimensions of one to 10 microns floats in water.
Emulsifiers create
The baroelectric of the same name becomes bitumen on the surface of the particles. The repulsive force caused by this load also hinders
The bitumen particles join in the emulsion. The amount of bitumen in emulsion bitumens is 50% to 75%.
From emulsion bitumens for preparing all kinds of factory cold asphalt mixtures or on-site mixtures, bitumen protective asphalt, sealing and staining procedures
Asphalt, soil stabilization, sand and dusting can be used.
For the use of emulsion bitumens usually
There is no need to heat them. Therefore, they are economically and safely superior to other types of bitumen.
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