[ CARACTERISATION PHYSIQUE DES SABLES DE RIVIERES EN VUE DE LEUR MEILLEURE UTILISATION DANS LA CONFECTION DES BETONS ]
Volume 25, Issue 2, July 2016, Pages 517–527
Tatiana KAMGA DJOUMEN1, Chérif BISHWEKA BIRYONDEKE2, Grégoire KAMDJO3, and François NGAPGUE4
1 Institut Universitaire de la Côte, Douala, Cameroun
2 Faculté des Sciences et Technologies Appliquées / Génie Civil, Université Libre des Pays des Grands Lacs (ULPGL/Goma), Goma, Nord-Kivu, RD Congo
3 Institut Universitaire de Technologie Fotso Victor, Université de Dschang, BP134 Bandjoun, Cameroun
4 Institut Universitaire de Technologie Fotso Victor, Université de Dschang, BP134 Bandjoun, Cameroun
Original language: French
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Despite the gradual professionalization of the construction sector as well as the abundance of sand mining sites offered by the Western Cameroon Region, ignorance of materials by local builders persists. In the present work, the physical characterization of river sands of Santchou Sub-Division in Cameroon is performed. Experimental laboratory studies show that sand equivalents is greater than 80%; therefore, these materials are clean sands for concrete manufacture. The Materials from Ntingue and Fombap are well-graded. As for materials from Faungwa are poorly graded. The fineness modulus of Fombap materials indicates that they can be used as sand for concrete mnufacture, provided to use Portland cement. Materials from Ntingue and Faungwa are of very high fineness modulus; therefore, particle size distribution requires correction before their use in formulating concrete. For such a correction, it is proposed their association with Fombap sand in suitably chosen proportions using tables obtained in this work. The formulation should be carried out using one of the modern methods. Compression tests on concrete samples made up with these proposals provide good resistance, which demonstrates their validity.
Author Keywords: Sand, physical characterization, materials, concrete.
Volume 25, Issue 2, July 2016, Pages 517–527
Tatiana KAMGA DJOUMEN1, Chérif BISHWEKA BIRYONDEKE2, Grégoire KAMDJO3, and François NGAPGUE4
1 Institut Universitaire de la Côte, Douala, Cameroun
2 Faculté des Sciences et Technologies Appliquées / Génie Civil, Université Libre des Pays des Grands Lacs (ULPGL/Goma), Goma, Nord-Kivu, RD Congo
3 Institut Universitaire de Technologie Fotso Victor, Université de Dschang, BP134 Bandjoun, Cameroun
4 Institut Universitaire de Technologie Fotso Victor, Université de Dschang, BP134 Bandjoun, Cameroun
Original language: French
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Despite the gradual professionalization of the construction sector as well as the abundance of sand mining sites offered by the Western Cameroon Region, ignorance of materials by local builders persists. In the present work, the physical characterization of river sands of Santchou Sub-Division in Cameroon is performed. Experimental laboratory studies show that sand equivalents is greater than 80%; therefore, these materials are clean sands for concrete manufacture. The Materials from Ntingue and Fombap are well-graded. As for materials from Faungwa are poorly graded. The fineness modulus of Fombap materials indicates that they can be used as sand for concrete mnufacture, provided to use Portland cement. Materials from Ntingue and Faungwa are of very high fineness modulus; therefore, particle size distribution requires correction before their use in formulating concrete. For such a correction, it is proposed their association with Fombap sand in suitably chosen proportions using tables obtained in this work. The formulation should be carried out using one of the modern methods. Compression tests on concrete samples made up with these proposals provide good resistance, which demonstrates their validity.
Author Keywords: Sand, physical characterization, materials, concrete.
Abstract: (french)
Malgré la professionnalisation progressive du secteur de la construction ainsi que l’abondance de sites d’extraction de sable qu’offrent la Région de l’Ouest-Cameroun, la méconnaissance des matériaux par les bâtisseurs locaux persiste. Dans le présent travail, la caractérisation physique des sables de rivières de l’Arrondissement de Santchou au Cameroun est effectuée. Les études expérimentales en laboratoire montrent des équivalents de sable supérieurs à 80%, indiquant que ces matériaux sont des sables propres pour la confection des bétons. Les matériaux de Ntingue et de Fombap sont des sables moyens de granulométrie étalée et bien graduée. Quant aux matériaux de Faungwa, ils constituent un gros sable de granulométrie mal graduée. Les valeurs du module de finesse des matériaux de Fombap indiquent qu’ils peuvent être utilisés comme sables pour bétons, à condition d’employer le ciment Portland. Les matériaux de Ntingue et de Faungwa, de module de finesse très élevé, nécessitent une correction granulométrique avant leur utilisation dans la confection des bétons. A cet effet, il est proposé comme moyen de correction, leur association au sable de Fombap à des proportions convenablement choisies à l’aide des tableaux élaborés dans le présent travail. La formulation devra être effectuée à l’aide de l’une des méthodes modernes. Les essais de compression effectués sur les éprouvettes de béton confectionnées à l’aide de ces propositions donnent des bonnes résistances, ce qui atteste de leur validité.
Author Keywords: Sable, caractérisation physique, matériaux, béton.
How to Cite this Article
Tatiana KAMGA DJOUMEN, Chérif BISHWEKA BIRYONDEKE, Grégoire KAMDJO, and François NGAPGUE, “PHYSICAL CHARACTERIZATION OF RIVER SAND FOR BEST USE IN THE MANUFACTURE OF CONCRETE,” International Journal of Innovation and Scientific Research, vol. 25, no. 2, pp. 517–527, July 2016.
