Gpc Infrastructure Bridge Engineer Interview Questions and Answers

DBM quantity refers to the quantity of Dense Bituminous Macadam used in the project.

• DBM is a type of road construction material made of crushed aggregates and bitumen.

• The quantity of DBM required depends on the design specifications and the area to be paved.

• DBM is typically used as a base or binder course in road construction projects.

• Example: In our project, we used 500 tons of DBM for the road pavement.