Nos productions scientifiques du trimestre
1ere Publication :
Titre
Improving the Bearing Capacity of Road Soil by Treatment with Cement and Lime: Case of National Road No. 4 in the City of Ouagadougou in Burkina Faso
Auteurs
Bernard Gouba, Boukari Sawadogo, Dieudonné Dabilgou
Résumé
Nowadays, the question of the availability of good quality materials is increas ingly raised in road projects. This has led us to techniques for improving the performance of materials that can be used in road layers. Cement and lime treatment is a well-known technique for improving materials in road con struction . The test is done by adding a small amount of cement or lime to the material to be improved. This amount is determined at various percentages in order to obtain a good result. To carry out our study, it is necessary to study the raw material to see if it meets the standards, otherwise it must be improved. Indeed, for a material to be used in road layers, a minimum bearing capacity of 80% to 98% of OPM is required. Also, in order to understand the evolution of the CBR bearing capacity, we will make our materials suitable for road con struction by mixing them with lime and cement.
Référence bibliographique complète
1] BCEOM-CEBTP, France (1984) Practical Guide to the Dimensioning of Roadways for Tropical Countries. 60-80.
[2] Tchouani, N.J.M. (1999) Soil Mechanics Course, Volume I, Soil Properties, InterState School of Higher Technicians in Hydraulics and Rural Equipment, Ouagadougou.
[3] NF P 11-300 GTR Classification of Soils. [4] NF P 94-051 Determination of the Atterberg Limit, March 1993.
[5] NF P 94-56 Granulometric Analysis; Dry Sieving Method after Washing, March 1996. [6] NF P 94-078 CBR Test after Immersion, Immediate and Immediate Bearing Index, May 1997.
[7] NF P 94-051 Determination of the Atterberg Limit, March 1993.
[8] NF EN 933-8 Test to Determine the Characteristics of Aggregates, August 1999.
[9] Bakouan, D. (2014) Internship Report for Obtaining the Diploma of Civil Engineer ing Engineer, supported at the Nazi Boni University (Burkina Faso), July 2014.
[10] Clotaire, W.D. (2023) Soil Mechanics Course at the Higher Institute of Technology, Teaching Geotechnics (Burkina Faso). https://techno.istburkina.com/course/index.php?categoryid=18
[11] Kiemde, M.S. End of Cycle Internship Report: Geotechnical Laboratory and in Situ Testing, supported at the University of Technology and Management (Burkina Faso). [12] Tran, V.D. (2013) Study of Soil Improvement by Lime Treatment. Master’s Thesis, The University of Liège (Belgium). http://hdl.handle.net/2268.2/2340
[13] Azoumah, K.D.E. (2018) Characteristics of Lateritic Gravel Packers Improved with Cement and Litho Stabilized for Use in Road Construction, supported at 2iE. http://documentation.2ie-edu.org/cdi2ie/opac_css/doc_num.php?explnum_id=2819
[14] Nicolas, C. (2004) Soils Treated with Lime and Hydraulic Binders: Contribution to the Identification and Analysis of Elements That Disrupt Stabilization. Doctoral The sis, Ecole Nationale Supérieure des Mines Saint-Etienne, 189 p.
[15] Millogo, Y. (2008) Geotechnical, Chemical and Mineralogical Study of Clay and Lat eritic Raw Materials from Burkina Faso Improved with Hydraulic Binders: Application to Civil Engineering (Building and Road). Thesis, The University of Ouagadougou.
Mots-clés
CBR Bearing Capacity, Improvement, GAL, Cement, Lime
Lien vers la revue, PDF, HAL, ResearchGate, etc
https://www.scirp.org/journal/ojce
Lien de téléchargement
https://doi.org/10.4236/ojce.2025.151007
2e Publication :
respectively of about 2.1, 25.44, and 8.86% for the last two compared to the values obtained at the 50 m position. The behavior of the fill factor shows that despite the small variation of Voc compared to that of Isc, the behavior of certain electrical parameters such as the conversion efficiency and the maximum power out-put remain strongly influenced by Voc.