INFLUENCE OF THE PETROGRAPHIC AND GRANULOMETRIC PROPERTIES OF COARSE AGGREGATES AND CHIPPINGS ON THE DESIGN OF UNBOUND ROADBASES

EINFLUSS DER PETROGRAFISCHEN UND GRANULOMETRISCHEN EIGENSCHAFTEN VON SCHOTTER UND SPLITTEN AUF DIE DIMENSIONIERUNG UNGEBUNDENER TRAGSCHICHTEN

THE RESEARCH PROJECT WILL BE CARRIED OUT IN THE FOLLOWING STAGES: CALCULATION OF THE REPLACEMENT MODULUS OF ELASTICITY OF AGGREGATE LAYERS OF DIFFERENT THICKNESS, GIVEN A VARIABLY THICK BITUMINOUS COVER (FOLLOWING THE GERMAN STANDARDIZATION ); DETERMINATION OF THE TENSILE STRESS WHICH CAN BE COMPENSATED AS A QUANTITY WHICH DESCRIBES THE MATERIAL IN RELATION TO AGGREGATE TYPE AND GRANULOMETRIC QUANTITIES OBTAINED FROM PLATE BEARING TESTS, BY A) GENERAL CALCULATION OF THE STRUCTURES USED AND B) DETERMINATION OF THE CHARACTERISTIC VALUES BY MAKING CALCULATIONS FROM THE RESULTS OF MEASUREMENTS.