Unconfined compression testing quickly provides strength values of comprehensive soils and can be performed on intact, remolded, or reconstituted soil specimens using strain-controlled application of axial loads.
The unconfined compressive strength specimen is placed into a Servo Control Load Frames, which is the ideal piece of equipment for unconfined compressive strength testing and a range of soil mechanics applications.
Gilson’s Servo Control Load Frames feature a 10,000lbf (44.5kN), or 20,000lbf (90.0kN) load capacity and an extra-wide strain rate range of 0.00001–2 in/min (0.000254–50.8 mm/min). The strain rates are precisely regulated to within ±1% under load, utilizing closed-loop electronic feedback from a powerful 2 hp continuous servo motor.
These advanced load frames are equipped with a touchscreen human-machine interface (HMI) controller that displays the current strain rate throughout testing, regardless of the applied load. Adjusting nuts on the coarse-threaded vertical rods makes it easy to adjust the horizontal crosshead, and the heavy duty units feature 16-gauge powder-coated steel enclosures.
Digital components configured for unconfined compression tests enable full data collection and are purchased separately. Each set includes the necessary instruments to measure load and displacement. View our available Unconfined Component Sets.
Data Acquisition Software, purchased separately, automatically records load and displacement data and generates a real-time load-penetration curve for calculating unconfined compressive strength tests.
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