Author(s)

Baye Oumar Diop^1*, Ignace Gbaguidi², Papa Goumbo Lo^2,3, Aminata Cisse⁴, Seynabou Sène³, Makhaly Ba⁵

¹École Supérieure Polytechnique, Université Cheikh Anta Diop, Dakar, Senegal.
²Institut des Sciences de la Terre, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal.
³Centre Expérimental de Recherches et d’études pour l’équipement (CEREEQ)1, Dakar, Senegal.
⁴AGEROUTE-Sénégal, Fann Résidence, Dakar, Senegal.
⁵UFR Sciences de l’Ingénieur, Université de Thiès, Thiès, Senegal.

This study is carried out to appreciate the coarse elements influence of the gravel lateritic soils on the pavement behavior. The material involves not only the 0/20 mm granular particles considered in the specifications and on the laboratory tests, but also all of the material that is actually used in the construction sites. Geotechnical characterization was leaned on five differentiated granular classes of 0/20; 0/25; 0/31.5; 0/40 and 0/63 mm diameters. The sample of 0/40 mm gets the best compaction aptitude, while that of 0/31.5 mm reaches the greatest bearing strength and a good Optimum Moisture Content. According to the requirements and its bearing strengths, the material is usable up to subbase layer and its behavior depends on the grain size.

Granular Class, Bearing Strength, Optimum Modified Proctor (OMP), Gravel Lateritic Soils, Pavement

Diop, B. , Gbaguidi, I. , Lo, P. , Cisse, A. , Sène, S. and Ba, M. (2018) Grain Size Influence on the Compaction Aptitude and the Bearing Strength of the Gravel Lateritic Soils. Geomaterials, 8, 63-76. doi: 10.4236/gm.2018.84005.