ISO 17892-7 is the ISO method for the unconfined compression test on soil. It applies to determining the unconfined compressive strength of a homogeneous specimen of undisturbed, re-compacted, remoulded or reconstituted soil under compression loading, as part of a geotechnical investigation.
Geotechnical laboratories use the test to estimate the undrained shear strength of soil. Because drainage is not prevented during loading, ISO notes that this estimate is only valid for soils of low permeability that behave sufficiently undrained during the test, so the soil type should be checked before the result is used. ISO also states that the document fulfils the unconfined compression test requirements of EN 1997-1 and EN 1997-2 (Eurocode 7).
The test needs a loading frame that applies compression to the soil specimen while force and deformation are recorded. Our Automatic Triaxial Testing System is used for soil compression testing to ISO 17892-7. If you need help matching ISO 17892-7 requirements to your parts or setup, contact our team.
