engleski

Mapping of Runway Pavement Layers Thickness by GPR

In the era of rehabilitation projects non- destructive test methods are becoming irreplaceable tool for pavement condition assessment and selection of reconstruction strategies. This is especially important for airports where there is no room for ˝surprises˝ and every step of the reconstruction project has to be carefully planned in respect to time and technology. Since, layers thickness of existing pavement is an important factor in choosing rehabilitation technique all variations in layers thickness need to be located. The only tool one can use to gain insight into thickness variations, without disturbing pavement integrity, is Ground Penetrating Radar (GPR). The paper presents experiences in determination of runway pavement layers thickness by GPR at Split Airport. Measurements were carried out on 15 m wide and 750 m long runway section. The results of measurement and conducted analyses were used in mapping pavement layers thicknesses. Obtained maps together with pavement material properties represented the baseline for the design of rehabilitation project. From the presented it can be concluded that employing GPR at project level as complement to traditional investigation methods is technically and economically sound program.

pavement rehabilitation ; non-destructive method ; layer thickness ; Ground Penetrating Radar

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