(in lingua inglese)
Improved asphalt concrete air void characterization was demonstrated in this case study by the use of a 21 antenna GPR array system on an in-service pavement. Using the reflection amplitude, a dielectric map of the tested area was obtained. Analysis of the dielectric map allowed for logical selection of core locations to develop a relationship between dielectric values and air void content. While more field trials with additional cores are necessary for full implementation, initial analysis of this type of application shows the potential to provide benefits to road owners such as improved pavement quality and durability by providing complete coverage.