Benkelman Beam : Beam Ratio : 2 : 1Length of the probe arm from pivot to probe point 244cm.Length of measurement arm from pivot to dial 122 cm.Distance form pivot to front legs 25cm.Distance from pivot to rear legs 166cm andLateral spacing of front support legs 33cm.
Used to check and maintain the slope of the road as per design.Material- aluminum section of size 24 mm x 45 mm of thick gauge.Size- 3 meter, 3.5 meter, 3. 75 meter or as per requirement.Ratio- 2.0%, 2.5%, 3.0% or as per requirement.Accessories- highly sensitive magnetic spirit level and seat for it at centre.
Consists of Case hardened Mild steel cylindrical container of 150mm dia + 0.5mm x 130mm to 140mm high with base plate 200 to 230mm square x 6mm thick. A plunger of 148mm + 0.5mm dia x 100 to 115mm high. All parts directly coming in to contact with the specimen during the test are made of mild steel duly case hardened. Supplied complete with tamping rod, 16mm dia x 600mm long, one end rounded.
The apparatus, consist of a rigid frame that supports two conical hoppers vertically aligned above each other and mounted above a cylinder. The top hopper is slightly larger than the bottom hopper, while the cylinder is smaller in volume than both hoppers. To perform the test, the top hopper is filled with concrete but not compacted.