Test Method for Evaluating Asphalt-covered Concrete Bridge Decks Using Ground Penetrating Radar

This paper presents the synthesis of an experimental investigation concerning con- crete corrosivity and delamination efiects on electromagnetic wave propagation in reinforced con- crete. It demonstrates that the data analysis procedure, proposed in the ASTM D6087 \Standard Test Method for Evaluating Asphalt-Covered Concrete Bridge Decks Using Ground Penetrating Radar (GPR)", is not always valid. A novel methodology of GPR data processing that allows the detection of areas of high probability of rebar corrosion in concrete is presented.