Influence of Humidity on Yield Stress Determination by Slump Test of Slip-Prone Clayey Soils and Their Relation with the Chemical Properties
Influence of Humidity on Yield Stress Determination by Slump Test of Slip-Prone Clayey Soils and Their Relation with the Chemical Properties作者机构：Escuela Superior de Física y Matemáticas Instituto Politécnico Nacional Edif. 9 Unidad Profesional Adolfo López Mateos Col. Lindavista C. P. 07738 México D. F. México.
出 版 物：《Advances in Materials Physics and Chemistry》 (材料物理与化学进展（英文）)
年 卷 期：2012年第2卷第4期
页 面：102-105页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Clayey Soil Yield Stress Slump Test Microstructure Illita
摘 要：In this work, the yield stress evaluation as a function of water content for slip-prone clayey soils is studied in order to understand how yield stress decreases as water content increases, and their relation with the chemical properties. The clayey soil samples were taken from the region of Teziutlán-Puebla-Mexico. Yield stress was calculated using the slump test in cylindrical geometry. Results show three zones. The first one shows an exponential decrement on yield stress due to lower water content in accord with clayey soils with high content of illita, followed by a second region where yield stress decreases dramatically at a certain critical water concentration, and the third one where yield stress dependence is not well-defined since the clayey soil flow is seen. Finally, it is discussed how yield stress variation due to the water increment influences the landslide risk increment.
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