Benkelman Beam Apparatus Manufacturer,Supplier and Exporter in India
Product Code : TVT-BATE-10361
The Benkelman Beam Apparatus from Tvet Equipments measures the rebound deflection of a flexible pavement under a moving standard-axle truck wheel load, a widely used field method for assessing the structural adequacy and strengthening needs of existing road pavements.
How It Works
The probe end of the pivoted beam is placed between the dual wheels of a loaded truck's rear axle positioned at the test point, while the beam's fulcrum and dial gauge sit on the pavement outside the loaded area. As the truck moves slowly away, the pavement rebounds from its deflected state under the wheel load, and the dial gauge (or LVDT on digital versions) records the maximum rebound deflection, which is used to assess pavement strength and estimate overlay thickness requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 3200 (L) x 780 (W) x 540 (H) mm |
| Approx. Weight | 53 kg |
Applications
The Benkelman Beam Apparatus is used for pavement deflection testing under IRC:81-1997 (Guidelines for Strengthening of Flexible Road Pavements Using Benkelman Beam Deflection Technique), the Indian Roads Congress standard governing this test, applied by highway agencies and pavement design consultants to assess existing road strength before overlay or rehabilitation design.
Related Products & Category
Part of Tvet Equipments' Bitumen Asphalt Testing Equipment range, used in pavement condition surveys alongside surface regularity equipment such as the Travelling Beam Apparatus.
Frequently Asked Questions
Q1. What does the Benkelman Beam measure?
It measures the rebound deflection of a flexible pavement surface as a loaded truck wheel moves away from the test point, an indicator of the pavement's structural strength.
Q2. Why is a loaded truck required for this test?
The truck applies a standard axle load to the pavement at the test point, replicating in-service traffic loading so the resulting deflection reading reflects real structural response rather than an arbitrary test load.
Q3. What is this test used for?
Deflection results are used by highway agencies to assess whether an existing pavement needs strengthening and to help design the required overlay thickness, following IRC:81 guidelines.
Request a Quote
For pricing, lead times, or technical specifications on the Benkelman Beam Apparatus, contact Tvet Equipments for an indicative quote.
