AASHTO R 37-04 (2018) PDF Download

The AASHTO R 37-04 (2018) standard aims to provide guidance to highway engineers on the use of non-contact ground penetrating radar (GPR) in transportation facilities. This standard practice is specifically designed to assist engineers in utilizing GPR for various purposes, including conducting pavement layer thickness surveys, quality control during new pavement construction, evaluating granular base material, identifying areas of asphalt stripping, and assessing the condition of bridge decks. It is important to note that while GPR offers multiple applications in the transportation industry, its effective use requires extensive training and experience in interpreting the data output and adapting to local pavement conditions.