DEVELOPMENT OF A MEASURING CAR TO BE USED FOR NON- DESTRUCTIVE TESTING OF THE ROAD

ENTWICKLUNG EINER MESSWAGENEINRICHTUNG ZUM ZWECKE DER ZERSTOERUNGSFREIEN PRUEFUNG DER STRASSE

BY MEANS OF NON-DESTRUCTIVE TEST PROCEDURES WHICH EMPLOY ISOTOPES AND THE USE OF INDUCTIVE OR MAGNETIC PROPERTIES IT IS NOW POSSIBLE TO CARRY OUT VARIOUS MEASUREMENTS, I.E. OF DENSITY, POROSITY, BITUMEN CONTENT ETC. IN ORDER TO TEST THE PRESCRIBED EQUIPMENT AND PROCEDURES FOR PRACTICALITY, ACCURACY AND RANGE OF SCATTER, A CAR MADE AVAILABLE BY THE FEDERAL ROADS ADMINISTRATION IS TO BE CONVERTED AND EQUIPPED WITH VARIOUS INSTRUMENTS. DEVICES FOR PROCESSING WITH MINI COMPUTERS AND DIGITAL EVALUATION ARE TO BE DEVELOPED, AND PROBLEMS ASSOCIATED WITH OPERATION IN A MEASURING CAR AND ENVIRONMENTAL INFLUENCES ARE TO BE EXAMINED. THE INSTRUMENTS TESTED IN THE MEASURING CAR SHOULD ENABLE ALL NECESSARY CONTROL AND ACCEPTANCE TESTS TO BE CARRIED OUT, PARTICULAR VALUE BEING LAID ON NON-DESTRUCTIVE TESTING AND REPRESENTATIVE RESULTS WITH RESPECT TO STATISTICS. DIGITAL RECORDING AND COMPUTER PROCESSING RESULTS IN DOCUMENTATION AND RAPID EVALUATION.