The GCTS Soil Triaxial Cell (TRX-100/200/300) is constructed of stainless steel with a see-through Plexiglas external cell wall. After a specimen is loaded for testing, the external cell wall is lowered over the cell and fastened into place, resulting in minimum disturbances to the specimen. All the standard triaxial cells can accommodate smaller diameter specimens using optional platens. These triaxial cells accept specimens with a length of approximately 2.5 times the diameter.
Standard units come with a set of top and bottom stainless steel or anodized platens, porous stones, all necessary O-rings, and reinforced metal rings. The ductility of metal rings offers an additional safety factor in case the acrylic cell wall is accidentally damaged. At the bottom of the cell are valves and quick disconnect fittings for top drainage & pore pressure, bottom drainage & pore pressure and chamber filling & emptying. Five bleed ports located at the high points are also provided to completely remove air bubbles remaining while filling the cell with water.
The loading piston diameter for the 70 mm cell is a 15.9 mm (5/8 in.) stainless steel shaft and 25.4 mm (1 in.) for the 100 mm and 150 mm cells. A stainless steel, extra-precision ball bearing guides the loading shaft. Both swivel loading buttons and rigid threaded connectors are provided with these cells. The swivel buttons allow the top cap to rotate during loading.
The threaded adaptor is used for a rigid connection, which forces the axial deformation to be uniform. Stress reversal is easily applied with this adaptor.
Up to eight feed-through ports to connect internal instrumentation can be added as an option. Other optional devices are available upon request.