Effect of Temperature on Shear Strength and Yielding Behavior of Soft Bangkok Clay
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This paper presents the results of an intensive laboratory study carried out on undisturbed soft Bangkok clay specimens to investigate the effect of temperature on shear strength and yielding behavior especially in states wetter than critical condition. Modified triaxial apparatus that can handle elevated temperature up to 100°C has been used in this study. The experimental program includes series of drained and undrained compression triaxial tests, and isotropic and anisotropic consolidation tests conducted at different temperature levels (25, 70, 90°C). The results of the experimental program were analyzed in light of the definitions of the critical state soil mechanics theory. The outcomes of this study provide useful test results and thorough understanding that can enhance the constitutive modeling of saturated fine grained soils behavior under elevated temperatures.