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Lab Report sample - Traxial Lab Report
Engineering and Construction
Pages 7 (1757 words)
Undrained triaxial compression test Name Course Level Group & date of performing the experiment Instructors’ name. Institution Abstract Triaxial compression test involves a laboratory experiment that is vital in assessing the mechanical traits of fine-grained soils…
A triaxial cell was used in the experiment. The soil was encased in the cell. The soil was loaded hydrostatically until the desired pressure was obtained. The axial load was increased up to the soil failure, when the pressure was constant. The resulting deformation, and applied load was measured using a system of acquiring data, and load deformation curves plotted. When the soil reached a high confine pressure, it reached a brittle-ductile transition (Ferrari, A. laloui, L. & Koliji, A. 2011). Beyond this stress condition, the soil increased the load capabilities with no observed failure due to the additional axial strain that was imposed (Zhang et al. 2010) Introduction A triaxial compression test involves a method that is used in measuring the chemical properties of solids that are deformed such as rocks, soil, powders, or granular components. During this method, water or oil as medium of confining is normally used to ensure that the confining pressure is same in the different directions. In the case of loose granular components like sand, the soil is kept in a cylindrical latex sleeve having a flat circular platen or metal plate covering the bottom and the top ends (Ferrari, A. laloui, L. & Koliji, A. 2011). The cylinder would then be placed inside the water bath to offer pressure along the cylindrical sides. The top metal plate would be driven mechanically down or up along the cylinder axis to have the material squeezed. ...
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