DBPapers

CONSIDERATIONS CONCERNING THE IMPORTANCE OF THE CAPPING LAYER IN THE DESIGH OF SUSTAINABLE ROAD PAVEMENTS

F. BELC, P. MARC, A. L. BELC
Thursday 11 October 2018 by Libadmin2018

ABSTRACT

The paper presents the theoretical analysis concerning the realization conditions of the capping layer in Romania, in comparison with the stipulations of other technical norms, especially the French ones. The authors aim at emphasizing the technical solutions which can be applied in different situations to obtain a high bearing capacity at the bottom of the pavement, with beneficial effects on the reduction of the road layer thickness and a better operational behavior. The comparative analysis will show that several values of the bearing capacity at the earthworks level can coexist in the pavement dimensioning. It is important that the value taken into consideration in the calculation does not decrease during operation. On the other hand, the site verification of the quality conditions designed for the upper level of the earthworks bears a significant importance before the realization of the pavement. The paper also presents the technical solutions favored by the specialists in the south-west Romania for the realization of the capping layer, pointing out the advantages and drawbacks which can lead to changes in the today outlook.

Keywords: capping layer, stabilized road layers, road pavements design


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