Influence of the Diatomite Specie on the Peak and Residual Shear Strength of the Fine-Grained Soil

Diatomite is a powdering mineral mainly composed of diatom microfossils present in marine and lacustrine soils, which influences their physical mechanical properties. Although many articles have been found the literature concerning influence diatomite overall behavior natural few research efforts carried out to evaluate microfossil species on shear resistance. Therefore, this research, content peak residual strength diatomite-fine grained soil mixtures was analyzed using annular test. Scanning electron microscopy (SEM) Atterberg limits were also as additional tests explain interlocking effect between soil. Overall, both increased similar dense sands. Nevertheless, Mexican reveal higher friction angle values compared with Colombian species.