ABSTRACT
The impact of flooding induced moisture changes on the deformational behavior characteristics of a granular pavement constructed over an expansive black clay subgrade was investigated through Accelerated Pavement Model (APM) testing. The traffic loading on the pavement structure was modelled as sinusoidal type cyclic loading applied to a circular stationary plate on the pavement. Results show that the deformation increases with the number of load cycles at the initial stage and subsequently the loading plate plunges into the pavement structure displaying catastrophic failure. To mitigate such failure, light stabilization of base course material with cementitious material is being experimented under similar flooding conditions. Details of this experimental research and the findings are discussed in this paper.
