Static deflection equipment measure pavement deflection in response to a static load. The Benkelman Beam (Figure 2), developed at the Western Association of State Highway Organizations (WASHO) …

Method of Benkelman Beam Deflection Test The Benkelman beam deflection test is used to determine the deflection of an existing flexible pavement to inform the design of an overlay.

In this method, a standard truck having a rear axle weighing 8170 kg fitted with dual tyre inflated to a pressure of 5.60 kg/cm is used for loading the pavement.

Therefore, this method of pavement evaluation and overlay design is generally followed in this country. The magnitude of ‘rebound deflection’ of flexible pavement when a standard wheel load of a truck is …

1.1 This test procedure covers the determination of the rebound deflection of a pavement under a standard wheel load and tyre pressure, with or without temperature measurements.

This test procedure covers the determination of the rebound deflection of a pavement under a standard wheel load and tire pressure. This test is necessary for pavement structural evaluation and in overlay …

It is used to measure the deflection of flexible pavement under moving wheel load. Pavement surface deflection measurements are the primary means of evaluating a flexible pavement structure and rigid …

The beam is commonly used as a tool for evaluating compaction and moisture content in new construction projects. The Benkelman Beam measuring process commences between the wheels of …

Sep 25, 2018 · This chapter reviews various deflection testing equipment, presents the reasons for conducting deflection testing, describes common deflection testing patterns, discusses important …

General The H-3220A Benkelman Beam Apparatus is a convenient and accurate device used for measuring the deflection of flexible pavements under moving whee. oads. Operating on a simple …