Torshear EmS is a versatile and fully automatic ring shear testing machine that benefits from the new low maintenance, efficient and environmentally-friendly Electromechanical Servoactuation (EmS) technology.
Ring shear test description
The test provides a procedure for performing a torsional ring shear test under a drained condition to determine the fully softened shear strength and nonlinear strength envelope of cohesive soils.
The fully softened strength is used to evaluate the stability of slopes that do not have a pre-existing shear surface. The fully softened shear strength also corresponds to the peak shear strength of a normally consolidated specimen. This test method focuses on the use of a reconstituted specimen to measure the fully softened strength.
This test is performed by shearing a normally consolidated, reconstituted specimen at a controlled displacement rate until the peak shear resistance has been obtained.
The TORSHEAR EmS can complete the whole test from consolidation to shear stage automatically; selecting the load (stress) for consolidation and a pre-defined shear speed for shearing stage offering a practical and accurate way to obtain reliable results without any need for manual intervention, reducing the risk of human error.
Complete stand-alone system
Total control of a single unit, including full test execution is achieved without the need of a PC. The user interface is based on a large 6” touchscreen color display permitting to start, pause and stop the test, choose the data recording mode, show the readings during the test execution and carry out the transducers calibration.
It comes supplied with a USB pen drive allowing unlimited storage, TXT format data output.
Totally new and ingenious software (optional)
Clarity in results
Stainless steel shear boxes
40 cm2 stainless steel ring shear box fitted with easily removable sintered porous stone.
Ensuring complete application of torsional force
Sintered porous stone with special pattern design guarantees torsional shear force application.
BS 1377:7‰ASTM D6467‰ASTM D7608
27-WF22E02/3: Sintered porous stone for Torshear testing machine 30-WF6016/T16: Ring Shear Geo-Analysis MS EXCEL template conforming to ASTM D6467 30-WF6016/T3: Ring Shear Geo-Analysis for MS EXCEL Template according to BS 1377:7 27-WF22E02/SW:
Torshear EmS software activation code. For remote PC control and data aquisition from Torshear EmS (27-WF22E02), multiple units connectable to a single PC
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