EFFECT OF MODIFYING AGENTS ON THE DEFORMATION RESISTANCE AND LIFE OF GUSSASPHALT AND ASPHALTIC CONCRETE UNDER TRAFFIC LOADING

UNTERSUCHUNG DES EINFLUSSES VON VERGUETUNGSMITTELN AUF FORMBESTAENDIGKEIT UND LEBENSDAUER VON GUSSASPHALT UND ASPHALTBETON UNTER VERKEHRSBELASTUNG

BECAUSE OF THE CONSTANT INCREASE IN AXLE LOADS DENSE SURFACINGS ARE INCLINED TO DEFORM UNDER TRAFFIC, AND THIS HAS TO BE PREVENTED BY THE ADMIXTURE OF DIFFERENT AGENTS TO THE BITUMINOUS BINDER. THE AIM OF THE PROJECT IS TO TEST THESE PRODUCTS, OR THE GUSSASPHALT AND ASPHALTIC CONCRETE SURFACINGS MADE WITH THEM, UNDER THE ACTION OF TRAFFIC. A NUMBER OF STANDARD DESIGNS IN LINE WITH EXISTING AUSTRIAN ROAD RESEARCH ASSOCIATION SPECIFICATIONS ARE TO BE EXAMINED AND CLASSIFIED, AND THE BEST MIXTURES ARE TO BE INCORPORATED INTO EXPERIMENTAL ROADS AND PERIODICALLY CHECKED.