Summary
This paper investigates the mechanical properties of the concretionary laterites from the rain forest and the savannah zones of Nigeria. It then compares these properties to those of crushed granitic gravel and hardened ferruginous laterite conglomerate. The results show that these concretionary laterites have superior properties to the crushed granitic gravel used in this investigation. The hardened ferruginous laterite conglomerate had the worst properties for road construction. The excellent properties of these concretionary laterites are used to explain the longevity of the earlier roads constructed in Ondo State of Nigeria for light to medium dense traffic.
Résumé
Dans cet article, on étudie les propriétés mécaniques des latérites concrétionnées des zones de forêts et de savanes du Nigéria. On les compare à celles de granulats broyés granitiques et de conglomérats latéritiques ferrugineux indurés. Les résultats montrent que ces latérites concrétionnées ont des propriétés supérieures à celles des premiers. Quant aux seconds, ils ont les moins bonnes propriétés vis-à-vis d'une utilisation routière. Les excellent propriétés des latérites concrétionnées expliquent la longévité de la plus ancienne route construite dans l'état d'Ondo au Nigéria pour un trafic léger à moyennement dense.
Similar content being viewed by others
References
ACKROYD L. W. (1959): The Engineering Classification of some Western Nigerian Soils, and their Qualities in Road Building. Road Research Laboratory, Overseas Bulletin No. 10.
ASTM DESIGNATION (1976): C. 131–176, American Society of Testing Materials.
BRITISH STANDARD INSTITUTION (1967): Methods for sampling and Testing of Mineral Aggregate, Sands and Fillers 812.
DE GRAFT-JOHNSON J. W. S.—BHATIA H. S.—GIDIGASU D. M. (1969): The Engineering Characteristics of the Laterite Gravels of Ghana. Proceedings of the Speciality Session on Engineering Properties of Lateritic Soils. Seventh International Conference on Soil Mechanics and Foundation Engineering, Mexico City, Mexico, 1969.
DE GRAFT-JOHNSON J. W. S.—BHATIA H. S.—HAMMOND A. A. (1972): Lateritic Gravel Evaluation for Road Construction. Journal Soil Mech. and Foundation Div.; Proc. ASCE, 98, SM 11, Paper 9375, 1245–1265.
OLA S. A. (1978): Mineralogical Properties of some Residual Soils. (Unpublished).
ROAD RESEARCH LABORATORY (1962): Soils and other Road making Materials in Nigeria. Road Research Technical Paper No. 57.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ola, S.A. Mechanical properties of concretionary laterites from rain forest and Savannah zones of Nigeria. Bulletin of the International Association of Engineering Geology 21, 21–26 (1980). https://doi.org/10.1007/BF02591536
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02591536