What is Bituminous ?

Definition of Bituminous in Construction
A type of paving that is a combination of asphalt and stone. The asphalt is a by-product of the oil manufacturing industry and is an oily substance that will be flexible when heated and stiff and supportive when cooled. The introduction of various products such as aggregate, sand, etc. to the asphalt mix will provide additional strength in the wearing ability of the material and will offer different levels of surface appearance. There are various types of bituminous and the sitework engineer will usually indicate the type of bituminous layers that are required to produce the desired effect for a specific project.