Type of Bitumen

 

                       Types of Bitumen 

Bitumen, also known as asphalt or tar, is a viscous, black, semi-solid form of petroleum. There are several types of bitumen, classified based on their physical properties, chemical composition, and intended use. Some common types of bitumen include:

1. Penetration Grade Bitumen: This type of bitumen is classified based on its penetration value, which is a measure of its hardness. Penetration grade bitumen is commonly used for road construction and waterproofing.

2. Polymer Modified Bitumen: Polymer modified bitumen is created by adding polymers, such as styrene-butadiene-styrene (SBS), to the bitumen. This results in improved properties such as increased elasticity, durability, and resistance to deformation.

3. Cutback Bitumen: Cutback bitumen is bitumen that has been thinned with a solvent to reduce its viscosity. This type of bitumen is commonly used for surface treatment of roads and waterproofing.

4. Emulsion Bitumen: Emulsion bitumen is a mixture of bitumen and water, stabilized with an emulsifying agent. This type of bitumen is commonly used for surface treatment of roads, as well as in the construction of bituminous membranes for waterproofing.

5. Oxidized Bitumen: Oxidized bitumen is created by blowing air through hot bitumen, resulting in an increase in its viscosity and hardness. This type of bitumen is commonly used in roofing and waterproofing applications.