Compressometer

Compressometer for testing concrete stress-strain relation

A compressometer is a device used to determine the strain or deformation of a specimen while measuring the compressive strength of concrete specimens, generally a cylinder. It can be used for rock,[1] concrete, soils,[2] and other materials. For concrete, the device usually comprises two steel rings for clamping to the specimen and two gauge length bars attached to the ring. When the compressive load is applied, the strain value is registered from the compressometer. Generally, a data logger is used to record the strain.

The stress strain curve is then used to determine the static Young's modulus of elasticity and Poisson's ratio of concrete. ASTM C469 describes about the instrument.

See also

References

  1. ^ Acar, M C (2014), MODULUS OF ELASTICITY DETERMINATION OF ROCKS USING COMRESSOMETER, STRAIN GAUGE AND LVDT, Proceedings of ACE, retrieved 18 January 2021
  2. ^ Elfass, S (July 2019), "Modeling of Partially Cemented Soils in the Las Vegas Valley", Modern Concepts in Material Science, 1 (4), doi:10.33552/MCMS.2019.01.000519, S2CID 214423441
  • ASTM International C469 Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression


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