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New High Accuracy Laboratory Road Material Direct Shear Testing Machine

This instrument is used for direct shear testing of interlayer bonding in on-site sampling of road layers, bridge decks, and building waterproof layers, or interlayer shear testing of Marshall specimen bonding layers made in the laboratory.

The instrument consists of a direct shear tester host, pressure control system, direct shear acquisition controller, air pump, upper computer software, etc.

Direct cutting controller display Large vertical pressure, shear force, and displacement can be set for speed, and this software can run on the Windows operating system to automatically extract, store, print, export, and other functions of the data acquisition instrument.

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    Technical Parameter

    1. Vertical loading: 0-20KN accuracy 0.005%

    2. Pressure method: cylinder pressure. The pressure is gradually loaded according to the sample area, with a constant pressure.

    3. Shear force: 0-30KN (± 10N)

    4. Test piece size: ￠ 100mm × 127mm (two small Marshall test pieces are bonded, the sampling height on site is not enough, and a cushion plate can be added)

    5. Ultimate displacement stroke: 30mm accuracy: 0.01mm

    6. Shear speed: 0-30mm/min can be set arbitrarily

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