Geotechnical mapping of lateritic gravels for efficient road construction in Cameroon’s intertropical zone

The study shows that the effective and timely construction of roads in the intertropical zone is hindered by the lack of geospatial data on the distribution of lateritic gravels (LG). This study uses a multicriteria geographic information system (GIS) mapping of elevations, relief curvature, slope c...

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Bibliographic Details
Published in:Discover Civil Engineering 2024-12, Vol.1 (1)
Main Authors: Foko Tamba, Carlos, Kengni, Lucas, Tematio, Paul, Wolf, Isabelle D., Tontsa, Lauric
Format: Article
Language:English
Subjects:
Case Study
Civil Engineering
Engineering
Online Access:Get full text
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Summary:The study shows that the effective and timely construction of roads in the intertropical zone is hindered by the lack of geospatial data on the distribution of lateritic gravels (LG). This study uses a multicriteria geographic information system (GIS) mapping of elevations, relief curvature, slope classes, and rock types to determine the distribution of LG north of Mount Bangou in Cameroon. The California Bearing Ratio (CBR), maximum dry density, fines content, and plasticity index are used to assess the geotechnical quality of these materials, with CBR values ranging from 17 to 32%. LG with good geotechnical characteristics covers an area of 50 km 2 north of Mount Bangou, with a CBR ≥ 30%, maximum dry density > 1.80, gravel content exceeding 64%, fines content 
ISSN:2948-1546
DOI:10.1007/s44290-024-00140-5