BBD & BI Test
Benkelman Beam Deflection studies are one of the non-destructive techniques for the structural evaluation of flexible pavements. A well-compacted pavement section or one which has been well-conditioned by traffic deforms elastically under each wheel load application such that when the load moves away, there is an elastic recovery or rebound deflection of the deformed pavement surface. This is the basic principle of the deflection method of pavement evaluation.
A bump integrator test is a method used to measure the roughness of a road surface. It involves using a specialized device called a bump integrator, which isattached to the back of a vehicle.