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ASTM D3080 | AASHTO T236 | BS 1377:7 | NF P094 071-1/2 | CEN-ISO/TS 7982-10.
A pneumatic closed-loop system with a high-performance pressure regulator is incorporated for the automatic application of vertical pressure, with the main advantage that manual loading of dead weights is eliminated. Techno-polymeric material of high quality and resistance has been used for the carriage of the shear box. It offers excellent resistance to corrosion and wear and tear, and it is resistant to all chemicals found in soil specimens. The carriage is light-weight and easy to clean. The microprocessor system reads and processes the force, vertical pressure and displacement readings, and manages the motor, the pressure valve, the safety system and the test steps through the closed-loop system. It has a scratchproof membrane keyboard and a large monochromatic graphic display.
The machine is supplied complete with the following electronic transducers:
The Shearmatic unit, along with the ACE Automatic oedometer and Autotriax 2, Automatic Triaxial test system, makes up a unique equipment for providing complete automation of a Consolidation, Shear and Triaxial Soil Mechanic laboratory.
|Set up of the consolidation steps
Each row of this table represents a pressure step which is defined by:
|Direct shear test
This screen shows the status of and information about the test, and displays real-time values of:
- Horizontal force
- Vertical pressure (maintained constant)
- Horizontal displacement
- Vertical displacement
||Shear box assemblies|
|Air compressors||86-D2015||Laboratory air compressor, 10 bar maximum pressure, 50 litre capacity, 230 V, 50 Hz, 1 ph.|
|86-D2015/Z||As above but 110 V, 60 Hz, 1 ph.|
|86-D2015/Y||As above but 220 V, 60 Hz, 1 ph.|
|28-WF2016/2||Air filter/water trap for air compressor|
|Data processing software||30-WF6016/T2||Direct and residual shear Geo-Analysis templates conforming to BS 1377:7.|
|30-WF6016/T9||Direct shear Geo-Analysis template conforming to ASTM D3080|
|Serial comunication box||27-WF2180/LINK||4 channels serial communication box (4 input and 1 output) for the multi-connection of up to 4 shear testing machine to PC for data downloading.|