Use of the novel non-destructive RWD technology can potentially improve the efficiency of evaluation of rigid pavements.
Rolling dynamic deflectometer, pavement No restrictions. (of this page) 21. The upper part of FIG. of pages 22. A method and an apparatus (1) for rolling wheel deflection measurement. A rolling wheel deflectometer comprises a heavy weight, e.g. 1 schematically shows a rolling wheel deflectometer 1 according to the invention in a first position. A falling weight deflectometer, towed by a truck A falling weight deflectometer (FWD) is a testing device used by civil engineers to evaluate the physical properties of pavement . No. Rolling Wheel Deflectometer (RWD) • Test at traffic speed (up to 60mph) • Measures center pavement deflection to vehicle loading • Final prototype introduced in … The Greenwood TSD provides continuous bearing capacity results at project and network … The Rolling Wheel Deflectometer (RWD) is a non-destructive testing device operating at traffic speed while measuring the surface deflection of the pavement close to a heavy load on the rear axle. Traffic Speed Deflectometer (TSD) The Traffic Speed Deflectometer (TSD), is an innovative Rolling Wheel Deflectometer measuring pavement response to applied load. The unique TSD technology is developed by Greenwood Engineering and has initiated a shift of paradigm in pavement engineering worldwide. A frame (6) extending essentially along said measuring surface (2) in said first direction from at least said rolling wheel (4). The unique TSD technology is developed by Greenwood Engineering and has initiated a shift of paradigm in pavement engineering worldwide. The rolling wheel deflectometer 1 is adapted to be moved, typically towed, along a test surface 2 formed by the pavement to be surveyed in a first direction generally indicated with the arrow 3.

The weight causes a localised deflection basin in the pavement around the wheel. 19. Rolling wheel deflectometer Download PDF Info Publication number RU2603668C2. 20,000 kg, supported by a wheel, which is rolled over the pavement at rela- tively high speed up to 100 km/h. 1 schematically shows a rolling wheel deflectometer 1 according to the invention in a first position. (of report) 20. The Greenwood TSD provides continuous bearing capacity results at project and network level while following the flow … During the test, a known weight is dropped onto a circular load plate on the pavement surface, and the resulting deflection is measured by sensors placed around the load plate. The RWD uses triangulation lasers attached to an aluminum beam mounted beneath … The apparatus comprises: A rolling wheel (4) to be moved along a measuring surface (2) in a first direction. Security Classif. FWD data is primarily used to estimate pavement structural capacity for 1) overlay design and 2) to determine if a pavement is being overloaded.
Four spaced apart range sensors (7, 8, 9, 10). The rolling wheel deflectometer 1 is adapted to be moved, typically towed, along a test surface 2 formed by the pavement to be surveyed in a first direction generally indicated with the arrow 3. The upper part of FIG. Rolling wheel deflectometer (RWD) devices are increasingly being used for structural condition evaluation.

The RWD is a nondestructive testing device that assesses pavement structural conditions while operating at normal highway speeds and without... more. The Traffic Speed Deflectometer (TSD), is an innovative Rolling Wheel Deflectometer measuring pavement response to applied load. Rolling Wheel Deflectometer. Leveraging the major technological advances in digital imaging, Dynatest has further developed the RWD principle and solved its largest issue—correlating distance measurements from the same spot on the pavement from different sensors. Security Classif. A falling weight deflectometer (FWD) is a device that is designed to simulate the loading of a wheel passing over a pavement and measure its vertical deflection response to that load.


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