Article (Scientific journals)
Assessment of Lateritic Gravelled Materials for Use in Road Pavements in Cameroon
Foko Tamba, Carlos; Kengni, Lucas; Tematio, Paul et al.
2022In Geotechnical and Geological Engineering, 40 (8), p. 4195 - 4215
Peer reviewed
 

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Keywords :
Bamileke plateau; Californian bearing ratio; Lateritic gravelled materials; Mineralogical composition; Road construction; Sub-base layer; Subgrade; Base layers; Bearing ratio; Cameroon; Lateritic gravelled material; Mineralogical compositions; Sub-bases; Architecture; Geotechnical Engineering and Engineering Geology; Soil Science; Geology
Abstract :
[en] Early surface and structural deterioration of new pavements are becoming increasingly perceptible in Cameroon. This raises serious concerns regarding the nature, spatiotemporal evolution, and quality of materials used. Therefore, this study uses geotechnical identification, X-ray diffractometry, and statistical methods to optimize the durability of lateritic gravelled material (LGM) pavements. The CBR values within the study sites are dispersed and present low variability (coefficient of variation-CV < 15%), to high variability (CV > 35%). Three groups of LGM were distinguished at the Bamileke Plateau: firstly, LGM at the BAN site were characterized by CBR (31%). Secondly, LGM of Bamendjou 1 and Bamendjou 2 sites, characterized by CBR varying between 25 and 27%, CI between 1.3 and 1.5, gravel content among 62.7 to 64.7%, and MDD between 1.76 and 1.82 g/cm3. Thirdly the Sekakouo and Chenye sites LGM are dominated by fines with C80µm between 38 and 44%. Swelling clay minerals are absent in these materials. It results that, these materials are suitable for use as a subgrade layer for any type of traffic, and as a sub-base for low-volume traffic T1 to T3, except those at the Sekakouo and Chenye sites. Prospecting of LGM deposits should be directed towards those with high proportions of Gm, gravel content, MDD, CI, SG, and low proportions of Pm, C80µm, C400µm, Pp, ɛs and C2mm.
Disciplines :
Civil engineering
Author, co-author :
Foko Tamba, Carlos  ;  Université de Liège - ULiège > Faculté des Sciences Appliquées > stage conv. Erasmus en sc. appl. ; Department of Earth Sciences, Faculty of Science, University of Dschang, Dschang, Cameroon
Kengni, Lucas;  Department of Earth Sciences, Faculty of Science, University of Dschang, Dschang, Cameroon
Tematio, Paul;  Department of Earth Sciences, Faculty of Science, University of Dschang, Dschang, Cameroon
Manefouet, Bertile Ilalie;  Department of Earth Sciences, Faculty of Science, University of Dschang, Dschang, Cameroon
Kenfack, Jean Victor;  Department of Earth Sciences, Faculty of Science, University of Dschang, Dschang, Cameroon
Language :
English
Title :
Assessment of Lateritic Gravelled Materials for Use in Road Pavements in Cameroon
Alternative titles :
[fr] Évaluation des matériaux gravillonnés latéritiques pour les chaussées routières au Cameroun
Original title :
[en] Assessment of Lateritic Gravelled Materials for Use in Road Pavements in Cameroon
Publication date :
16 August 2022
Journal title :
Geotechnical and Geological Engineering
ISSN :
0960-3182
eISSN :
1573-1529
Publisher :
Springer Science and Business Media Deutschland GmbH
Volume :
40
Issue :
8
Pages :
4195 - 4215
Peer reviewed :
Peer reviewed
Development Goals :
12. Responsible consumption and production
Funding text :
The authors are grateful to the anonymous reviewers for their contributions to the improvement of the manuscript.
Available on ORBi :
since 06 March 2023

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