Rock Shear & Durability Testers

Used to calculate the JRC of a rock or joint. The device consists of an adjustable inclined plane, on which the rock sample (100 mm max dia.) is placed, separated along the surface where the roughness is to be measured. Then the plane is slowly tilted until sliding of the upper part of the sample on the lower one occurs. From the measured inclination angle it is possible to evaluate the roughness index.

Conforms to Test Standard: ASTM D5607 Shear box made in aluminium alloy Maximun axial and shear load capacity: 50 kN Reversable shear action with 48 mm stroke Double version available: analogic and electronic Data processing template available as accessory for the digital version 2 mould formers included in the testing configuration Links: Data Sheet

Maximum 4 drums can be used simultaneously to improve testing productivity Complete with display showing the residual testing time (10 minutes as per ASTM indications) Transparent water tanks with level mark to help correct water filling Compact machine for saving space in the laboratory Drums with quick-release drive units for rapid mounting / disassembling Links: Data Sheet