POLYETHYLENE GRAVEL

GRAVES POLYETHYLENE

THE FIRST STUDIES CARRIED OUT ON NEW POLYETHYLENE AGGREGATE MIXTURES ENABLED MIXING AND AGGREGATE/POLYETHYLENE INTERACTION PROBLEMS TO BE UNDERSTOOD, AND EXPERIMENTAL SECTIONS TO BE CONSTRUCTED. IN 1979, THE PROGRAMME WILL BE AS FOLLOWS: A FOLLOW-UP STUDY OF SECTIONS ALREADY BUILT AND CONSTRUCTION OF TWO NEW SECTIONS CONTAINING STABILIZED SAND AND COATED GRAVEL; A STUDY OF MANUFACTURE PARAMETERS (TEMPERATURE, MANUFACTURE CYCLE AND PHASES); PROPOSALS OF MIX-DESIGN FORMULAE. SIMULTANEOUSLY IN COLLABORATION WITH MONTPELLIER UNIVERSITY, THE INTERACTION OF AGGREGATES AND POLYETHYLENE BY-PRODUCTS WILL BE INVESTIGATED.