Bitumen
Bitumen is used in road construction due to various properties and advantages. The bitumen as a raw material in flexible road construction and bitumen as a mix (composing other materials i.e. aggregates etc.) serves certain advantages, that prompt to use bitumen widely in road construction.
An overall bitumen mix is used in the construction of flexible pavement to serve the following needs.
• Structural Strength
• Surface Drainage
• Surface Friction