Stabilisation with geogrids for transport applications – selected issues

Abstract

Stabilisation is defined as improvement of the mechanical properties of an unbound granular material by including one or more geosynthetic layers such that the deformation under applied loads is reduced by minimizing soil particle movement. Paper discuss geogrids as type of geosynthetics which when used in stabilisation function for transport applications could provide real improvement in performance of aggregate layer. Such function has been called for a quite long time as the reinforcement of subbase, base or ballast, depending on the application

Alternative laboratory approach for determination of geogrids performance in mechanically stabilized layers

“…Geosynthetics performance and efficiency of the interlocking in mechanically stabilized layers is still very open scientific issue. There are number of field observations and publications in that matter [1][2][3][4][5][6][7][8][9][10] but naturally the site conditions in each case have very big influence on the results and therefore it is rather difficult to arrange such real testing sections which would allow mutual comparisons. There are large scale accelerated pavement tests (APT) which allow to construct almost identical testing sections which could be trafficked in relatively short time with even millions of axle passes.…”