GPR (Points)

The term ground penetration radar (GPR) refers to an electromagnetic technique designed primarily for the location of interfaces buried beneath the earth’s surface or located within a visually opaque structure. In pavement investigation GPR is used to assess the thickness of in-situ pavement layers.

  • Concrete AveTh

    Average thickness of concrete layers in the pavement structure along a segment as determined from GPR. If there is any concrete layer at all then it falls into the “Concrete (rigid)” category (regardless of bituminous and/or granular thickness)

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  • Bituminous AveTh

    Average thickness of bituminous layers in the pavement structure along a segment as determined from GPR. “Bituminous (flexible)” occurs where there is no concrete and the bituminous layer is greater than 75mm thick.

../../../../_images/GPR_Points_bitumen.png

  • Granular AveTh

    Average thickness of concrete layers in the pavement structure along a segment as determined from GPR. “Granular (flexible)” occurs when there is no concrete and the bituminous layer is less than 75mm thick.

../../../../_images/GPR_Points_granular.png