Application of the Synthetics Geo-Composites in the Arid Zones for Rehabilitation of the Flexible Pavements Road Experimental Analysis

The zones of the south Algerian, as the zone of Ouargla, are among the hottest zones, that are characterized by a stern and elevated temperature that can reach the 50 °C and a very big thermal gradient, without forgetting the aridity and dried it that provoke the loads and solicitations on the layer of rolling, of the pavements of the linear infrastructures (roads, aircraft pavements). What gives birth to cracks and the permanent distortions to small scale. Indeed, the downward propagation of these cracks has ominous effects on the lower layers and decrease the lift of the whole considerably especially to the presence of water, that major the damages and accelerate the deteriorations of these last. This work enters in the setting of the contribution for the understanding of these phenomena and therefore to find the adequate solutions that converge toward the safeguard of the body of pavements and the structural capacity of its infrastructures. One will proceed, on the basis of a data base to establish a state of the places that allows to lead an experimental companion to the laboratory and in situ. The integration of the composites geogrides can give satisfactory results and can increase the 1–4 times lasted it of life of the road infrastructure. The results of the dynamic tests by HWD, on road sections reinforced by geo-composites, will be the subject of analysis and reading in this analysis, in order to wedge the other found experimentally results.