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Civil Engineering

Unconfined Compression Test Calculator

Civil Engineering

GATE Verified formulaSI defaultsCompatible units
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Unconfined Compression Test

Equation and meaning

\[\sigma_{1f} = 2 \cdot C \cdot \tan\left(45 \cdot \frac{\phi}{2}\right)\]

σ>1ffor C of Φ soil by Unconfined Compression Test

Variables in this formula

C — C
Enter this value unless it is the selected unknown.
phi — Angle
Angle SI unit: rad
sigma_1f — Sigma 1F
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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