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Zoltan Tompai currently works at the Department of Engineering Geology and Geotechnics, Budapest University of Technology and Economics. Zoltan does research in Structural Engineering, Civil Engineering and Transportation Engineering. Their most recent publication is 'Laboratory evaluation of B & C small-plate light falling weight deflectometer'.
The subgrade layer is the lowest pavement layer, which carries the loads transferred from the upper layers. Different researchers have studied the resilient modulus (Mr) of different subgrade soils for the fine-grained and coarse-grained soil types. The layer's resilient response mechanism was found to be different for those fine and coarse materia...
Two types of Light Falling Weight Deflectometers (LFWD) are in use in Hungary: the German device (Zorn, HMP and Wemex) and the new B & C small-plate device, which was developed by Andreas Ltd. Both devices are able to measure the dynamic load bearing capacity of subgrades, subsoils, embankment layers and backfills. Extensive application of these ap...
A new Light Falling Weight Deflectometer has been used in Hungary for a couple of years now. The B & C Small-plate Light Falling Weight Deflectometer developed by Andreas Ltd. has been used in the quality control process of subsoil, embankment and subgrade layers in road and railroad constructions. Apart from measuring the dynamic modulus, the devi...