Texturing concrete pavement is the conventional option for enhancing tire/pavement noise and friction. It is performed while concrete is still in a plastic state or on a hardened concrete pavement. A new paved section in Illinois included nine different ―formed‖ textures (tining or drag finishes created in fresh concrete) and three different ―cut‖ textures (ground or grooved finishes created in hardened concrete) has been tested to study the effect of texturing type on tire/pavement noise and friction. For all of the texturing types, the widely accepted testing methods, CT Meter and high-speed profiler, have been used to measure the pavement surface properties shortly after construction. PhotoTexture was used for the testing performed immediately before the road was opened for traffic. PhotoTexture is a photometric stereo device for measuring the 3D surface heights of pavement surface. It has been developed by the Pavement Research Group at the University of Manitoba as a non destructive that is successfully used to measure pavement texture. This paper presents the analyses of the data obtained from the test measurements to determine the agreement between PhotoTexture and current standardized and widely accepted testing methods for measuring texture. Data analysis demonstrates the ability of PhotoTexture to detect texturing successfully.
Menu
