Chemical and Mineralogical Characterization of the Clayey Sands of Samo and Bingerville in the North of the Lagoon Fault, South of the Ivory Coast, In Road Construction

In Côte d'Ivoire, particularly in the south, the majority of paved and unpaved roads are made of clayey sand, given its availability. However, the early degradation of roads related to a strong sensitivity of this material to the environment (climate, geology and degrees of alteration) and a poor knowledge of the geotechnical properties of this one could slow down their use in road construction. It is within this framework that the work undertaken aims at determining the chemico-mineralogical nature of the clayey sands of the localities of Bingerville and Samo, in the South-East of Côte d'Ivoire. Tests were carried out taking into account the chemical and mineralogical analyses. Chemical elements were determined by atomic absorption spectrometry, colorimetry, complexometry and gravimetry. The determination of organic matter was determined using the Rock-Eval 6 pyrolysis method. The mineralogical composition was determined using a Bruker D8 ADVANCE diffractometer. The chemico-mineralogical analyses show that the clayey sands of Bingerville and Samo are more enriched in silica oxide (SiO2) but less enriched in iron oxide (Fe2O3). All the soils studied have an S/R ratio greater than 2, indicating that these soils are non-lateritic. In addition, the low TOC values between 0.1 and 0.15% by weight, which reflect the extremely low amount of organic matter in these soils, show the possibility of treating these soils with hydraulic binders. In addition, the mineralogy of the studied soils indicates that they are mainly composed of kaolinite and illite

Chemical and Mineralogical Characterisation of Clayey Sands from the Ivorian Sedimentary Basin in Road Construction

In Ivory Coast, particularly in the south, most paved and unpaved roads are made of clayey sand, given its availability. The early degradation of roads is related to a strong sensitivity of certain materials to the environment (climate, geology, and degrees of alteration) and a poor knowledge of the geotechnical properties could slow down their use in road construction. Within this framework, this paper focuses on determining the chemico-mineralogical nature of the clayey sands of the localities of Bingerville and Samo, in the South-East of Ivory Coast. Tests were conducted based on the chemical and mineralogical analyses. Chemical elements were determined by atomic absorption spectrometry, colorimetry, complexometry, and gravimetry. Organic matter was determined using the Rock-Eval 6 pyrolysis method, while the mineralogical composition was determined using a Bruker D8 ADVANCE diffractometer. The chemico-mineralogical analyses reveal that the clayey sands from Bingerville and Samo are more enriched in silica oxide (SiO2) but less enriched in iron oxide (Fe2O3). All the soils studied have a degree of laterization greater than 2, which suggests that they are non-lateritic soils. The low Total Organic Carbon (TOC) values lies between 0.1 and 0.15% by weight, which reflects the extremely low amount of organic matter in these soils. This indicates the possibility of treating these soils with hydraulic binders. The mineralogy of the studied soils denotes that they are composed of kaolinite and illite

Chemical and Mineralogical Characterization of the Clayey Sands of Samo and Bingerville in the North of the Lagoon Fault, South of the Ivory Coast, In Road Construction

In Côte d'Ivoire, particularly in the south, the majority of paved and unpaved roads are made of clayey sand, given its availability. However, the early degradation of roads related to a strong sensitivity of this material to the environment (climate, geology and degrees of alteration) and a poor knowledge of the geotechnical properties of this one could slow down their use in road construction. It is within this framework that the work undertaken aims at determining the chemico-mineralogical nature of the clayey sands of the localities of Bingerville and Samo, in the South-East of Côte d'Ivoire. Tests were carried out taking into account the chemical and mineralogical analyses. Chemical elements were determined by atomic absorption spectrometry, colorimetry, complexometry and gravimetry. The determination of organic matter was determined using the Rock-Eval 6 pyrolysis method. The mineralogical composition was determined using a Bruker D8 ADVANCE diffractometer. The chemico-mineralogical analyses show that the clayey sands of Bingerville and Samo are more enriched in silica oxide (SiO2) but less enriched in iron oxide (Fe2O3). All the soils studied have an S/R ratio greater than 2, indicating that these soils are non-lateritic. In addition, the low TOC values between 0.1 and 0.15% by weight, which reflect the extremely low amount of organic matter in these soils, show the possibility of treating these soils with hydraulic binders. In addition, the mineralogy of the studied soils indicates that they are mainly composed of kaolinite and illite

Caracterisaion Sedimentologique et Lithostratigiraphique de Deux Puits de la Zone d’Eboinda, Sud-est de la Côte d’Ivore

Eboinda a fait l’objet de plusieurs campagnes de recherche scientifique et pétrolière depuis l’observation de suintements de bitume dans cette zone. La présente étude porte sur la caractérisation sédimentologique et paléoenvironementale de cette zone. L’objectif principal est de déterminer la nature lithologique et l’environnement de dépôt de ses sédiments. Ainsi treize (13) échantillons provenant de deux (2) puits d’hommes ont permis de caractériser les formations sédimentaires d’Eboinda. Au cours de ce travail plusieurs méthodes ont été utilisées pour réaliser les analyses lithologiques, granulométriques et morphoscopiques. Les analyses lithologiques ont mis en évidence une sédimentation dominée par des argiles sableuses avec des sables quartzeux et du bitume en faible proportion. La granulométrie a distingué trois (03) catégories de sables, allant de très grossiers, grossiers à moyens, tous provenant du domaine fluviatile donc continental transportés en majorité par charriage et par suspension. Les grains de quartz présents dans les sables sont subanguleux à subarrondis à aspect émoussé luisant (90%) ou rond-mats (10%). Les premiers indiquent que les grains ont subi un long transport en milieu fluviatile tandis que les seconds traduisent un transport éolien. Eboinda has been the subject of several scientific and oil research campaigns since the observation of bitumen seepage in this area. This study focuses on the sedimentological and paleoenvironmental characterization of this area. The main objective is to determine the lithological nature and the deposit environment of its sediments. Thus thirteen (13) samples from two manholes made it possible to characterize the area. During this work, several methods were used to carry out the lithological, grain size and morphoscopic analyses. Lithologic analyzes revealed a sedimentation dominated by sandy clays with quartz sands and bitumen in small proportion. The granulometry distinguished three (03) categories of sand, ranging from very coarse, coarse to medium, all coming from the fluvial domain, therefore continental, transported mainly by bedload and suspension. The quartz grains present in the sands are subangular to subrounded with a shiny blunt aspect (90%) or round-dull (10%). The first indicate that the grains underwent a long transport in a fluvial environment while the second reflect a wind transport

Caracterisation Sedimentoloque et Paleoenvironnementale de la Zone D’eboinda, Sud-est de la Côte d‘Ivoire

Eboinda a fait l’objet de plusieurs campagnes de recherche scientifique et pétrolière depuis l’observation de suintements de bitume dans cette zone. La présente étude porte sur la caractérisation sédimentologique et paléoenvironementale de cette zone. L’objectif principal est de déterminer la nature lithologique et l’environnement de dépôt de ses sédiments. Ainsi treize (13) échantillons provenant de deux (2) puits d’hommes ont permis de caractériser les formations sédimentaires d’Eboinda. Au cours de ce travail plusieurs méthodes ont été utilisées pour réaliser les analyses lithologiques, granulométriques et morphoscopiques. Les analyses lithologiques ont mis en évidence une sédimentation dominée par des argiles sableuses avec des sables quartzeux et du bitume en faible proportion. La granulométrie a distingué trois (03) catégories de sables, allant de très grossiers, grossiers au moyen, tous provenant du domaine fluviatile donc continental transportés en majorité par charriage et par suspension. Les grains de quartz présents dans les sables sont subanguleux à subarrondis à aspect émoussé luisant (90%) ou rond-mats (10%). Les premiers indiquent que les grains ont subi un long transport en milieu fluviatile tandis que les seconds traduisent un transport éolien.   Eboinda has been the subject of several scientific and oil research campaigns since the observation of bitumen seepage in this area. This study focuses on the sedimentological and paleoenvironmental characterization of this area. The main objective is to determine the lithological nature and the deposit environment of its sediments. Thus thirteen (13) samples from two (2) manholes made it possible to characterize the sedimentary formations of Eboinda. During this work, several methods were used to carry out the lithological, grain size and morphoscopic analyses. Lithologic analyzes revealed a sedimentation dominated by sandy clays with quartz sands and bitumen in small proportion. The granulometry distinguished three (03) categories of sand, ranging from very coarse, coarse to medium, all coming from the fluvial domain, therefore continental, transported mainly by bedload and suspension. The quartz grains present in the sands are subangular to subrounded with a shiny blunt aspect (90%) or round-dull (10%). The first indicate that the grains underwent a long transport in a fluvial environment while the second reflect a wind transport

Caracterisation Sedimentoloque et Paleoenvironnementale de la Zone D’eboinda, Sud-est de la Côte d‘Ivoire

Eboinda a fait l’objet de plusieurs campagnes de recherche scientifique et pétrolière depuis l’observation de suintements de bitume dans cette zone. La présente étude porte sur la caractérisation sédimentologique et paléoenvironementale de cette zone. L’objectif principal est de déterminer la nature lithologique et l’environnement de dépôt de ses sédiments. Ainsi treize (13) échantillons provenant de deux (2) puits d’hommes ont permis de caractériser les formations sédimentaires d’Eboinda. Au cours de ce travail plusieurs méthodes ont été utilisées pour réaliser les analyses lithologiques, granulométriques et morphoscopiques. Les analyses lithologiques ont mis en évidence une sédimentation dominée par des argiles sableuses avec des sables quartzeux et du bitume en faible proportion. La granulométrie a distingué trois (03) catégories de sables, allant de très grossiers, grossiers au moyen, tous provenant du domaine fluviatile donc continental transportés en majorité par charriage et par suspension. Les grains de quartz présents dans les sables sont subanguleux à subarrondis à aspect émoussé luisant (90%) ou rond-mats (10%). Les premiers indiquent que les grains ont subi un long transport en milieu fluviatile tandis que les seconds traduisent un transport éolien.   Eboinda has been the subject of several scientific and oil research campaigns since the observation of bitumen seepage in this area. This study focuses on the sedimentological and paleoenvironmental characterization of this area. The main objective is to determine the lithological nature and the deposit environment of its sediments. Thus thirteen (13) samples from two (2) manholes made it possible to characterize the sedimentary formations of Eboinda. During this work, several methods were used to carry out the lithological, grain size and morphoscopic analyses. Lithologic analyzes revealed a sedimentation dominated by sandy clays with quartz sands and bitumen in small proportion. The granulometry distinguished three (03) categories of sand, ranging from very coarse, coarse to medium, all coming from the fluvial domain, therefore continental, transported mainly by bedload and suspension. The quartz grains present in the sands are subangular to subrounded with a shiny blunt aspect (90%) or round-dull (10%). The first indicate that the grains underwent a long transport in a fluvial environment while the second reflect a wind transport