Bitumen Roofing Sheets or Asphalt Are Widely Used in Road Construction Mainly Because Of Their Good Bonding Properties, Water Resistance, And Relatively Low-Cost Requirements.
Bitumen Roofing Sheets
Basic materials are a black or dark solid or viscous cementitious material, bitumen, composed mainly of high molecular weight hydrocarbons.
It is derived from the distillation of petroleum or natural asphalt and is adhesive and soluble in carbon disulfide.
Tar is the residue of the destructive distillation of organic matter such as coal, wood or petroleum and is more temperature sensitive than bitumen.
Since bitumen is different from tar, it is soluble in petroleum.
The soil is always used after a stabilization process such as compaction and strengthening with the addition of appropriate additives to improve road performance.
Mineral aggregates obtained from rocks constitute a major component of almost all types of road surfaces and road surfaces.
Bitumen Roofing Sheets Features
A wide variety of material requirements are needed and used in road construction.
Base materials are binders such as soil, aggregate, lime, bituminous/asphalt, cement, and other materials used as additives.
They are added to improve road performance under high loads and traffic conditions.
Soil forms the starting material for foundations, subsoils, or pavements (low-cost, low-traffic roads).
When highways are built on bridges at the required level, the soil forms the underlying dam material.
In addition, soil and rocks also serve as the foundation material, as all structures must ultimately transmit the load to the “mother earth”.
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Depending on the source and nature of the crude oil and the characteristics of the bitumen required, more than one treatment method may be used.
In steam and vacuum distillation processes, crude oil is heated and fed to a large cylindrical distillation unit.
Steam is introduced into the distillation unit to evaporate the more volatile components of the petroleum and to reduce the breakdown of distillates and residues.
Volatile components are collected, condensed and, if necessary, various fractions stored for further purification.
The residue of this distillation is then fed to a vacuum distillation unit, where the pressure of the residue and steam separates the heavier gas oil further.
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The desirable properties of bitumen depend on the type of mixture and composition.
In general, bitumen should have the following desirable properties.
The bitumen should not be very sensitive to temperature.
You can order Bitumen Roofing Sheets in bulk at the best price.