engleski

Preliminary results of FWD data interpretation on selected road section in Croatia

Pavement surface deflection measurements are usually conducted with different nondestructive testing methods. One of the most commonly used method is Falling Weight Deflectometer test (FWD), where an impulsive load is applied on pavement surface and the deflections are measured at a number of points radially distributed from the center of falling weight. All the testing parameters are adjusted to correspond the effect of loading due to standard axle on the investigated road. Laboratory for Transportation Engineering from Faculty of Civil Engineering University of Rijeka in cooperation with Croatian Civil Engineering Institute (IGH) measured pavement deflections on the second longest and one of the most loaded Croatian highways A3 Bregana – Zagreb – Lipovac (E 70). This highway is characteristic for greater amount of heavy vehicle traffic which is approximately 20% of total AADT and some highway sections were built 30 years ago, which were the reasons for the investigation of road’s structural capacity. In this paper part of the data collected with FWD test on one road section for both highway lanes will be presented. The aim is to interpret collected data for driving and passing lane for one highway section in Croatia.

FWD; nondestructive testing; highway

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