TECHNICAL VIABILITY ANALYSIS OF UNPAVED ROADS REINFORCED WITH GEOGRID IN CYCLIC LOADING TEST

The unpaved roads are paths that do not have surface treatment, presenting pathologies such as sinking of wheel tracks, holes and excess dust. Thus, it is relevant to develop solutions that optimize the useful life of these structures. It is known that this type of road constitutes more than 89% of the brazilian roads, denoting your relevance. Although the study about use of geosynthetics is quite recent, considering the beginnings of geotechnical engineering, the positive results obtained with its application in many works make this topic to be increasingly developed, with the objective of improving the technical viability of unpaved roads, this work proposes the use of a geosynthetic type, the geogrid, in a comparative study between different simulations of unpaved roads. In the study, the road simulations involving landfills with Steel Slag and gravel 1 were performed in a large equipment that put cyclic loads, which resemble vehicles passages in a real road. With the analysis of the informations obtained it was possible to verify that the roads containing the geosynthetic and steel slag showing a greater number of cycles, when the load aplication, this, in real conditions, increases the useful life of the road.