CHECKING THE PAVEMENT DESIGN OF THE EXPERIMENTAL SECTION ON THE SS NO 4 SALARIA. FULL DEPTH PAVEMENT.

THE FIRST EXPERIMENTAL FULL-DEPTH ASPHALT PAVEMENT IN ITALY WAS CONSTRUCTED IN 1970. AFTER NEARLY TWO YEARS OF SERVICE AND TWO PARTICULARLY HARD WINTERS THERE WAS NO SUBSIDENCE, LOOSENING OF AGGREGATES OR TRACKING, WHILE SIMILAR DEFECTS HAD TO BE REPAIRED ON ADJOINING SECTIONS OF CONVENTIONAL STRUCTURE. SYSTEMATIC DEFLECTION MEASUREMENTS AND CORE SAMPLING ARE BEING CARRIED OUT TO EVALUATE THE LONG TERM PERFORMANCE OF THE TEST SECTION, THE DESIGN AND CONSTRUCTION OF WHICH ARE DESCRIBED AND ILLUSTRATED. /TRRL/