Shear strength features of unsaturated clayey sand by lab test

Shear Strength of Fiber-Reinforced Clayey Sands

Consolidated-drained triaxial compression tests were conducted to compare the stress-strain and volume change response of sands and clayey sands reinforced with discrete randomly distributed poly-propylene fibers. The influence of various test parameters such as fiber content (0.0%, 0.5% and 1.0% by weight), clay content (0%, 10% and 20% by weight), relative density (50% and 90%) and confining ...

strength evaluation of wet reinforced silty sand by triaxial test

conventional investigations on the behavior of reinforced and unreinforced soils are often investigated at the failure point. in this paper, a new concept of comparison of the behavior of reinforced and unreinforced soil by estimating the strength and strength ratio (deviatoric stress of reinforced sample to unreinforced sample) at various strain levels is proposed. a comprehensive set of labor...

Effect of Cementation on the Shear Strength of Tehran Gravelly Sand Using Triaxial Tests

اثر ریزدانه‌ها بر رفتار مقاومت برشی نهشته‌های بادی به‌منظور کاهش فرسایش‌پذیری(مطالعه موردی استان گلستان)

Fine-grained materials of Clayey Loess deposits of Gorgan region were mixed with sand dune in the lab with various rations and their shear behavior was measured and evaluated by direct shear test. The result of the study showed that the increase of fine-grained clay in sand dune was directly related to the adhesion force and inversely to the internal friction angle. The increase or reduction in...

The Correlation between the CBR and Shear Strength in Unsaturated Soil Conditions

 In pavement design, the CBR and direct shear tests are two very common laboratory investigations for predicting the strength of a subgrade layer. The relationship between the CBR and water content has been commonly presented in analyses, with the result of the direct shear being expressed from the aspect of effective cohesion and the internal friction angle. Even though most natural soil is in...