bitumen/aggregate adhesion


The principal factors affecting bitumen/aggregate adhesion in asphalt

Table summarizes  the main factors that influence bitumen/aggregate adhesion.

The principal factors affecting bitumen/aggregate adhesion in asphalt

The principal factors affecting bitumen/aggregate adhesion in asphalt

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bitumen/aggregate adhesion
5 (100%) 3

Modified Bitumen


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For many years, researchers and development chemists have experimented with modified bitumens, mainly for industrial uses, adding asbestos, special fillers, mineral fibres and rubbers. In the last thirty years many researchers have looked at a wide spectrum of modifying materials for bitumens used in road construction. Table 5.1 details the majority of bitumen modifiers and additives that have been examined.

Table 5.2 contains a summary of some of the modifiers used with bitumens and asphalts in service situations and V indicated where they enhance the performance of asphalt.

For the modifier to be effective and for its use to be both practicable and economic, it must:

  • Be readily available
  • Resist degradation at asphalt mixing temperatures
  • Blend with bitumen
  • Improve resistance to flow at high road temperature without making the bitumen too viscous at mixing and laying temperatures or too stiff or brittle at low road temperatures.
  • Be cost effective

The modifier, when blended with bitumen, should:

  • Maintain its premium properties during storage, application and in service
  • Be capable of being processed by conventional equipment
  • Be physically and chemically stable during storage, application and in service
  • Achieve a coating or spraying viscosity at normal application temperature
some additive used for modify bitumen

some additive used for modify bitumen

benefits of different types of modifier

benefits of different types of modifier

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Modified Bitumen
5 (100%) 2

What is the process of buying bitumen / asphalt from Iran?

Bitumen packing

Export Bitumen & Asphalt

The process of buying bitumen/ asphalt from Iran in particular from The Feedar Esfahan Company is very simple!

If you are a real bitumen buyer, you will be able to buy bitumen from Iran through the following step:

  1. First, visit the Feedar Esfahan website and get more information about Iranian bitumen penetration grades and their specifications.
  2. Then select a grade of bitumen/asphalt based on your request. If you need more information about our products you can contact us via email or the contact option on this website.
  3. When you select your desired product, you can submit your request by the contact option on this website or by email or fax.

You need to provide this information:

  1. The Grade of the required bitumen
  2. The Quantity of the bitumen needed
  3. The kind of packing required
  4. The port of destination for the cargo to be delivered to
  5. The term of delivery (CFR, FOB, EX and etc.)

if you need a quick reply kindly use your company email to send your request.

Whenever you submit your request the Feedar Group Sale Unit will provide a reply for you as soon as Possible.


Fax: 00982126213070

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What is the process of buying bitumen / asphalt from Iran?
5 (100%) 2