Evaluation of the Effect of Lime Content on the California Bearing Ratio of Silty Soils: Case of Fombap District

作     者：Willy Chance Guimezap Kenou François Ngapgue Jules Hermann Keyangue Tchouata Vladimir Willianov Keubou Tatapzia Walter Jovic Kenou Jogo Willy Chance Guimezap Kenou;François Ngapgue;Jules Hermann Keyangue Tchouata;Vladimir Willianov Keubou Tatapzia;Walter Jovic Kenou Jogo

作者机构：Research Unit of Mechanics and Physical Systems Modeling (UR2MPS) Faculty of Sciences University of Dschang Dschang Cameroon Laboratory of Engineering Industrial Systems and Environment (LISIE) FOTSO Victor University Institute of Technology University of Dschang Dschang Cameroon Research Center for Innovation and Entrepreneurship (PRIE) Institut Universitaire de la Cote Douala Cameroon Laboratory of Environmental Geology Faculty of Sciences University of Dschang Dschang Cameroon School of Geology and Mining Engineering (SGME) University of Ngaoundéré Ngaoundéré Cameroon Faculty of Arts Humanities and Social Sciences (FALSH) University of Yaoundé 1 Yaoundé Cameroon 

出 版 物：《Open Journal of Geology》 (地质学期刊（英文）)

年 卷 期：2020年第10卷第11期

页      面：1059-1071页

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

主　　题：Soil Classification Lime Content California Bearing Ratio Soil Stabilization Subgrade 

摘      要：The present study is inscribed within the framework of the amelioration of the soils of the Santchou plain for employment as pavement subgrade. The bearing capacity proposed by these soils at their respective optimum dry densities is relatively small, although most of these experimental California Bearing Ratio (CBR) values of the studied soils are more important than the ones prescribed by the American Association of State Highway and Transportation Officials Classification system (AASHTO) for A5, A6, and A7 types. The stabilization of this soils with lime has been chosen to improve the bearing capacity and by association, their resilient modulus. The results of this study show that the increase of lime content is not proportional with the increase of the expected mechanical performances. In fact, the literature explains that when the lime content arrives at an optimum, the mechanical parameters no longer increase, but decrease significantly. After this optimum, the soil stabilization no longer shows advantages in the increase of geo-mechanical properties of soils.