14. Unconfined Compression Test
The chapter discusses the unconfined compression test, detailing its significance in determining the unconfined compression strength of soil specimens. It describes the conditions under which the test is performed and how the results, indicated by the axial stress at failure, can be utilized to assess soil consistency. The relationship between the degree of saturation and unconfined strength is also emphasized, presenting an essential aspect of testing for both saturated and unsaturated soils.
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What we have learnt
- The unconfined compression test is used to evaluate the unconfined compression strength of soil.
- The axial stress at failure during the test serves as a measure of soil consistency.
- The degree of saturation significantly affects the unconfined compression strength of soil specimens.
Key Concepts
- -- Unconfined Compression Strength
- The maximum axial stress a soil specimen can withstand under unconfined conditions, used as an indicator of soil consistency.
- -- Mohr's Circle
- A graphical representation used in soil mechanics to depict the state of stress at a point and the relationship between normal and shear stresses.
- -- Degree of Saturation
- A measure of the amount of water in the voids of a soil compared to the total volume of voids, impacting the unconfined compression strength.
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