In the framework of the feasibility study "Inspection of Concrete-Embedded Tracks" between BAM and Deutscher Bahn AG, application and further development of NDT- measurements for the constructional conditions of the concrete-embedded tracks are investigated.
After first test series on the rail track [Ref 1] and in further laboratory investigations on test specimen [Ref 2], result of the three selected non-destructive methods impact- echo, ultrasonic-echo and impulse radar will be presented.