What Is Bitumen

Asphalt, also known as bitumen, is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.
Bituminous materials are used for road construction, roofing, waterproofing, and other applications. For the main application, which is road construction, the major concerns, as with concrete, are cost and durability. What is bitumen made from?
What is bitumen? Bitumen is known for its waterproofing and adhesive properties, and is created through the crude oil distillation process. The process removes lighter crude oil materials such as diesel and gasoline, and leaves the heavier bitumen behind.