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Benkelman Beam

Select Item: $1,509.50 HM-574  Benkelman Beam Specify Quantity:     MA-334 Dial Indicator-Mecha... ($83.00) MA-366 Dial Indicator-Digit... ($380.00)     Estimated Shipping Weight: 55.0 pounds   24.9 kilograms Test Methods AASHTO T256 ASTM D 4695 Recent Items Benkelman Beam Gilson Centrifuge Extractor,1500g Expl-Proof,120V/60Hz Cleveland Flash Tester, Economy, 115V/60Hz Softening Point Ring & Ball Apparatus Assembly Slab-Pac Linear Kneading Compactor, 230V/50-60Hz

HM-574 pictured

HM-574

The HM-574 Benkelman Beam is a simple lever arm device which measures deflection of flexible pavements under the action of moving wheel loads. A probe beam is supported by a rigid reference beam such that deflections in its 2.44m (8ft) probe end are measured by a dial indicator 1.22m (4ft) on the other side of the fulcrum. Deflections measured on a dial indicator are therefore doubled to obtain pavement deflection.

The probe beam is placed between the tires of a test vehicle, and deflection is measured as the vehicle passes over the test area to beyond the end of the probe beam. The reference beam has a leveling adjustment to zero the dial indicator. A switchable battery-operated vibrator serves as a personnel alert and assures free movement of beam parts during measurements.

The three-piece, anodized, lightweight aluminum beam is 33lb (15kg) net weight for easy portability, and the longest piece is 6.5ft (1.99m). Mechanical Dial Indicator MA-334 or Digital Dial Indicator MA-366 must be ordered separately. Est. Ship Wt.: 55lb (25kg).