Evaluation of the Use of Laser Ultrasonics for the Rapid, Noncontact Inspectionof Concrete and Asphalt

摘要

The report documents the investigation of the use of a laser system for thedetection of voids, delaminations, and defects in asphalt and mesh reinforced concrete structures. The goals of the research were to discover whether laser systems could: generate and receive ultrasound in concrete and asphalt; verify that such a system obtains the same information as conventional ultrasonic tests; see if the laser system could obtain more information than conventional tests; and consider how laser ultrasonics would be used in the field.