Question

Why it is called unconfined compression test?

Answer 1

An Unconfined compression test is also known as uniaxial compression tests, is special case of a triaxial test, where confining pressure is zero. ... The compressive load per unit area required to fail the specimen as called unconfined compressive strength of the soil. .

Answer 2

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⎇ The compressive load per unit area required to fail the specimen as called unconfined compressive strength of the soil.