Description
The SHEARTEST is a versatile direct-shear system designed for conventional, incremental, and residual shear tests. This closed-loop, servo-controlled device applies simultaneous hydraulic normal and shear forces to a rock specimen housed in a shear box. It incorporates direct shear specimen rings capable of accommodating cylindrical cores, cubes, prisms, or rock fragments. A dedicated computing station records both force and displacement data in real time. The system operates under constant normal load (CNL), constant normal stiffness (CNS), or constant normal displacement (CND) modes while it can simultaneously apply constant incremental or ramped shear loads or displacements. Data collected during testing allows for the determination of key shear strength parameters, such as cohesion (c) and friction angle (Ø). Each unit can be custom-configured to specific needs, offering a wide range of shear and normal load capacities as well as specimen sizes—ensuring a tailored and precise solution for every user. The unit complies with ASTM D5607 and ISRM standards.
Download: Sheartest.pdf
Specifications
Model | Shear load
(kN)
| Normal
load
(kN) | Shear
stroke
(mm) | Normal stroke
(mm) | Ring diam/side
(mm) | Ring
Height
(mm) |
SHEARTEST 200-10 | 200 | 10 | +/-50 | 50 | 150 | 150 |
SHEARTEST 100-50 | 100 | 50 | +/-50 | 50 | 150 | 150 |
SHEARTEST 500-300 | 500 | 300 | +/-50 | 50 | 150 | 150 |
SHEARTEST 1000-500-L | 1000 | 500 | +/-50 | 100 | 300x300 | 100 |
Benefits
High Precision – Servo control ensures accurate, reliable force application.
Versatile – Supports CNL, CNS, CND, and various shear test modes.
Customizable – Adjustable load and size for different materials and needs.