Benkelman Beam is a simple lever-arm device that measures the deflection of flexible pavements under the action of moving wheel loads.
The probe beam, supported by a rigid reference beam, measures deflections using its 2.44m (8ft) probe end and a dial indicator at the end of the fulcrum. Deflections measured on a dial indicator are doubled to obtain total 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.
The reference beam has a leveling adjustment to zero the dial indicator. A switchable battery-operated vibrator alerts the operator and assures the 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). Dial Indicators must be ordered separately.
Features:
- Measures deflection of flexible pavements under the action of moving wheel loads
- Features a leveling adjustment to easily zero the dial indicator
- Assures free movement of beam parts during measurements
- Has a lightweight frame for portability
Included Items:
- Benkelman Beam
Accessories:
- MA-334 Mechanical Dial Indicator - 1 x 0.001in (Range x Resolution) a mechanical or electronic (digital) dial indicator is required for measuring deflection to standards
- MA-366 Digital Dial Indicator - 1 x 0.0001in (Range x Resolution) digital or mechanical dial indicator required
