COMPARISON STUDY OF OVERLAY DESIGN FOR PAVEMENTUSING LIGHT WEIGHT DEFLECTOMETER AND BENKELMAN BEAM

Nilesh Kumar; Dr.P.D.Arumairaj

Volume : IV, Issue : VI, June - 2015

COMPARISON STUDY OF OVERLAY DESIGN FOR PAVEMENTUSING LIGHT WEIGHT DEFLECTOMETER AND BENKELMAN BEAM

Nilesh Kumar, Dr. P. D. Arumairaj

Abstract :

Pavements are one of the most crucial factors to connect the society. Health of the pavements is not assessed from time to time and it results in their poor performance not only leading to many accidents but also increased running cost. The condition of pavement gets deteriorated as time passes unless maintenance is properly done. The reason behind the negligence of pavement maintenance is lack of availability of the required scientific tools or the difficulties faced in using the available tools. Light Weight Deflectometer, shortly called as LWD is a modern tool which can be used for in–situ evaluation of pavements thereby overlay design can be reliably done. Light Weight Deflectometer is a recently developed handheld, portable and user friendly device which determines the pavement layer modulus and also generates the overlay design thickness. Various correlation studies with other non–destructive road testing devices have been done worldwide and proposed that the LWD is very useful for construction quality control and assurance purposes. The primary objective of this study is to investigate the pavements of the entire campus of Government College of technology, Coimbatore and determining overlay design using LWD and comp� the results obtained with Benkelman Beam.