Bitumen (ASPHALT)

Penetration Grade Bitumen -Used in  road surfacing, and some industrial applications

 Additional processing yields other grades of bitumen products and their applications are

Oxidized Bitumen - Produced by more vigorous air blowing; they are more \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'rubber like\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' and less temperature susceptible than the paving grades. Used in roofing, waterproofing, electrical products, and many others.

Hard Grade Bitumen - Harder paving grades and are used  in making paints and enamels etc

Cutback Bitumen - Blends of penetration bitumen with Solvent such as kerosene used in  spraying and some mixing applications

Emulsion - Stabilized Suspensions of bitumen in Water. used largely in road surfacing applications

Polymer Modified Bitumen - Mixtures of selected bitumen with polymers such as Thermoplastics or Elastomer used in many applications   On the Roads Hot Mixtures

Typically hot bitumen is delivered to a fixed asphalt plant where the hot mixture is produced and then transported to the road site for laying and compaction to produce the finished road surface. Different specification binders allow the road construction industry to create surfaces that facilitate different performance .

Surface Dressing is a process commonly used for road maintenance. It normally consists of spraying a thin film of binder onto the road surface using a mobile spray vehicle. This is immediately followed by the application of a layer of stone chipping that are rolled to embed them into the surface. Emulsions and cutbacks are usually used in the spray application. Variations on these two main themes have also been developed for bituminous road surfacing.