ABSTRACT

This study presents the results of a series of California Bearing Ratio (CBR) index tests aimed at investigating reinforced soil samples with woven and non-woven geotextile inclusions positioned at H/2 and 1/4H from the top of the specimens, compacted at standard Proctor energies. The samples used in the research are derived from a residual soil of a typical soil profile in the state of Minas Gerais, Brazil, classified according to the Miniature, Compacted, Tropical (MCT) methodology as non-lateritic clayey (NG’). The main conclusions of the research were: i) the occurrence of reinforcement mechanisms in soils due to inclusions was not observed; ii) geotextiles positioned at H/2 from the top of the specimens exhibited higher CBR values; iii) the CBR test does not reflect the real conditions of soil-geosynthetic systems in the layers of a reinforced road.