Title:
Nondestructive Evaluation of Pavements
Author(s):
FrankK B. Holt and Jerry W. Eales
Publication:
Concrete International
Volume:
9
Issue:
6
Appears on pages(s):
41-45
Keywords:
concrete pavements; deterioration; evaluation; radar; nondestructive tests; temperature measuring instruments; General
DOI:
Date:
6/1/1987
Abstract:
Infrared thermography and ground-penetrating radar are two proven tools in the growing inventory of pavement management procedures. These nondestructive tests can be used to detect and evaluate various pavement defects, including delaminations in steel-reinforced concrete pavements, debonding of asphalt and concrete overlays, changes in overlay thickness, subsurface deterioration of joints and cracks, and subsurface voids. This article describes the equipment and test procedures used to evaluate each of these pavement defects. Case studies are outlined to demonstrate the speed and accuracy of the procedures under operational conditions.