A Nondestructive Method for Determining the Thickness of Sound Concrete on Older Pavements, HR-250, 1983

(1983) A Nondestructive Method for Determining the Thickness of Sound Concrete on Older Pavements, HR-250, 1983. Transportation, Department of

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Abstract

The primary purpose of this project was to assess the potential of a nondestructive remote sensing system, specifically, ground penetrating subsurface interface radar, for identification and evaluation of D-cracking pavement failures. A secondary purpose was to evaluate the effectiveness of this technique for locating voids under pavements and determining the location of steel reinforcement. From the data collected and the analysis performed to date, the following conclusions can be made regarding the ground penetrating radar system used for this study: (1) steel reinforcement can be accurately located; (2) pavement thickness can be determined; (3) distressed areas in pavements can be located and broadly classified as to severity of deterioration; (4) voids under pavements can be located; and (5) higher resolution recording equipment is required to accurately determine both the thickness of sound pavement remaining over distressed areas and the depth of void areas under pavements.

Item Type: Departmental Report
Keywords: D cracking, Defects, Ground penetrating radar, Location, Nondestructive tests, Pavement distress, Pavements, Reinforcement (Engineering), Thickness, Void ratios, Pavement thickness, Voids
Subjects: Transportation > Pavements
Transportation
Transportation > Railroads
Transportation > Roads and highways
Transportation > Design and Construction
ID Code: 16234
Deposited By: Iowa DOT Library
Deposited On: 05 Mar 2014 13:48
Last Modified: 03 Oct 2014 12:28
URI: http://publications.iowa.gov/id/eprint/16234