Alluminium Benkelman Beam, Color : Grey, Length : 2500 Mm

Benkelman Beam

Purpose:
Used for measuring pavement deflection under a standard wheel load to assess structural capacity and remaining life of road surfaces.

1. Material:

   • Made of lightweight aluminum alloy or steel for durability and corrosion resistance.

2. Beam Length:

   • Overall length: Approximately 3.66 meters (12 feet)

   • Probing arm (front): 2.44 meters (8 feet)

   • Rear arm (counterweight arm): 1.22 meters (4 feet)

3. Deflection Ratio (Lever Arm Ratio):

   • 2:1 – deflection measured is half the actual pavement deflection.

4. Dial Gauge:

   • Range: 0–25 mm

   • Accuracy: 0.01 mm

   • Mounted on a rigid supporting frame

5. Support Legs/Base:

   • Tripod base or built-in support

   • Provides stability during measurements

6. Carrying Case:

   • Rugged, often includes foam padding for protection

   • Makes the unit easy to transport and store

• No electronic components – fully mechanical and manual

• Used in conjunction with a standard truck wheel load (usually 8–10 tonnes)

• Field-proven tool for structural evaluation of flexible pavements