The GDS Constant Rate of Strain Cell (CRS) is a load frame based one
dimensional consolidation cell capable of applying back pressure and
measuring pore pressures up to 1MPa (low pressure version) or 20MPa
(high pressure version). Coupled with GDS controllers and software
the system will run the entire test from start to finish through a
loading path specified by the user using constant rate of strain
loading.
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System
Overview
Instead of applying stress increments in stages as in a typical
oedometer consolidation test the load can be gradually applied to
the sample by increasing the axial displacement at a constant rate.
Controlled back pressure (water) is applied to the sample and
drainage is allowed through the base of the apparatus. The advantage
of this method is that the time required to complete a consolidation
test can be reduced significantly.