50mm Diameter Shear Box

The Shear Box for 50mm (1.97in) diameter samples meets ASTM and AASHTO requirements for direct shear testing of soil specimens. The Shear Box is divided horizontally so that one half can be displaced laterally as shearing forces are measured, and the unit is equipped with screws to adjust the gap between the two halves. The anodized aluminum Shear Box features a Teflon^® finish for corrosion resistance.

Includes 1.953in (49.6mm) diameter top and bottom Porous Stones and a Loading Ball. Included components can also be ordered as individual accessories to enhance sample preparation efficiency, or as replacement items. An Extruder (purchased separately) allows for easy removal of a tested sample.

Features:

• Meets requirements of ASTM D3080 and AASHTO T 236
• Split horizontally to allow independent movement of upper and lower halves when shear forces are applied

Included Items:

• Shear Box
• Two Porous Stones
• Loading Ball

Accessories:

• 50mm Diameter Cutter allows for precision trimming of specimens for testing
• 1.953in Diameter Porous Stone, 0.25in Thick supports the end of a sample and allows flow of fluid when testing
• Loading Ball provides a point of contact between the Shear Box and the crossarm of the Load Frame
• 50mm Diameter Extruder simplifies removal of a soil specimen from the Shear Box after testing
• 50mm Diameter Calibration Disc is used for calibration of Direct/Residual Shear Machines
• Shear Box Counterbalance supports top half of Shear Boxes 2.5in (63.5mm) or smaller to offset weight during testing
• Nylon Alignment Screw can be ordered as a replacement part for worn or damaged screws