Vincent Laurent Onana
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View article: Enhancement of geotechnical properties of lateritic gravels from metamorphic rocks in Cameroon with quicklime to improve road construction material quality
Enhancement of geotechnical properties of lateritic gravels from metamorphic rocks in Cameroon with quicklime to improve road construction material quality Open
Lateritic gravels are commonly used in road construction due to their favourable geotechnical properties, which can be enhanced with additives like quicklime. This study conducted geological, microstructural, and geotechnical analyses on m…
View article: Potentiality of some lateritic clayey material from Meiganga as raw material in fired bricks making
Potentiality of some lateritic clayey material from Meiganga as raw material in fired bricks making Open
The Meiganga lateritic clays and termite mounds were characterized for their use as construction materials. The six collected samples were subjected to mineralogical, geochemical, and physico-mechanical tests. Quartz, kaolinite, hematite, …
View article: Compressed earthen blocks using alluvial clays from Mbam: performance comparison using statistical analysis of cement <i>vs</i> heat-stabilized blocks
Compressed earthen blocks using alluvial clays from Mbam: performance comparison using statistical analysis of cement <i>vs</i> heat-stabilized blocks Open
In the present study, a comparison of the thermal-insulation and mechanical performances of cement and heat-stabilized compressed earthen blocks (CEBs) was carried out to determine the factors which influence those properties. The raw clay…
View article: Assessment of crushed rock aggregates addition to granular lateritic materials in sub-Saharan extensive urbanization context (Yaoundé Cameroon) for road construction purposes
Assessment of crushed rock aggregates addition to granular lateritic materials in sub-Saharan extensive urbanization context (Yaoundé Cameroon) for road construction purposes Open
Granular lateritic materials (GLM) suitability for road construction after the addition of crushed rock aggregates (CRA) in the sub-Saharan extensive urbanization context was evaluated. The urbanization rate was made by using Landsat7 and …
View article: Mineralogical, geochemical, and geotechnical features of lateritic soils from termite mounds in two contrasting savannah areas (central Cameroon) as raw materials for brick making
Mineralogical, geochemical, and geotechnical features of lateritic soils from termite mounds in two contrasting savannah areas (central Cameroon) as raw materials for brick making Open
Termite mound soils (TMS) from humid savannah (HS) and dry savannah (DS) were evaluated as raw materials for compressed earth bricks (CEB) and fired bricks. Mineralogy and major elements geochemistry were performed by X-Ray Diffraction and…
View article: Characteristics of Kaolinitic Raw Materials from the Lokoundje River (Kribi, Cameroon) for Ceramic Applications
Characteristics of Kaolinitic Raw Materials from the Lokoundje River (Kribi, Cameroon) for Ceramic Applications Open
Eight kaolinitic materials from the Lokoundje River at Kribi were sampled and investigated for their physical, chemical, mineralogical and thermal characteristics in order to evaluate their potential suitability as raw materials in ceramic…
View article: DMSO Deintercalation in Kaolinite–DMSO Intercalate: Influence of Solution Polarity on Removal
DMSO Deintercalation in Kaolinite–DMSO Intercalate: Influence of Solution Polarity on Removal Open
This study focused on the deintercalation of dimethyl sulfoxide (DMSO) from a kaolinite–DMSO complex in various solvents. The use of kaolinite as filler in polymer–clay composite generally faced the difficulty of kaolinite dispersion due t…
View article: Mineralogy and preliminary assessment of the potential uses of alluvial clays from Batouri (Eastern-Cameroon)
Mineralogy and preliminary assessment of the potential uses of alluvial clays from Batouri (Eastern-Cameroon) Open
This study aimed at assessing the potential uses of alluvial clayey materials from Batouri. Their mineralogical, chemical and some physicomechanical characteristics are presented with some characteristics of fired bricks at 900, 950, 1000,…
View article: Nature and Genesis of Vertisols and North Cameroon Management Experience: A Review
Nature and Genesis of Vertisols and North Cameroon Management Experience: A Review Open
Vertisols are tropical soils that occur world-wide (335 million ha) with high agricultural and other engineering potentials. However, they are underutilized as most of their physical characteristics make management techniques difficult and…