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On the Geotechnical Properties of Lateritic Gravels from the Quarries of Lam-Lam and Mont-Rolland (Western Senegal) – Implications for Their Use in Road Construction

Samples of laterite soils from the quarries of Lam-Lam and Mont-Rolland (Thiès Department/Western Senegal) were investigated in the laboratory following the standard procedures suggested by the French norms. The main objective was directed at evaluating the geotechnical properties and the suitability for use as aggregates in road construction. The investigation revealed low load-bearing capacity (CBR of 61-65) as the primary technical parameter that constrained their suitability in road structure based on the general technical specifications. The bulk material meets the requirement for use as aggregates in road sub-grades, but does not fulfill the criteria for use as sub-bases in road construction; thus there is the need for necessary pretreatment in order to enhance their mechanical performance. The observed low bearing capacity can be attributed to the relative abundance of fines particles which tends to decrease the mechanical resistance and performance of aggregates, particularly in wet conditions.

Auteur(s) : Seybatou Diop, Ignace Gbaguidi, Fary Diome, Momar Samb
Pages : 260-264
Année de publication : 2015
Revue : International Journal of Science, Technology and Society
N° de volume : Volume 3, Issue 5
Type : Article
Mise en ligne par : DIOP Seybatou