Use of plastic wastes as a binding material in the manufacture of tiles: case of wastes with a basis of polypropylene

This paper aims to study the possibility of using plastic waste as a binding material instead of cement in the manufacturing of roofing tiles. The study bears on plastics with a polypropylene basis. Plastic waste is carried to melt and mixed with a varying proportion of sand (variation between 50 and 80% in weight). Five compsitions of tiles characterized by their proportion in plastic waste of 0% (tiles in mcro-concrete), 20, 30, 40 and 50% were studied. The measuremens of physical and mechanical properties show that plastic waste tiles whose proportion in plastic is 40%, give better results than micro-concrete tiles (TP0). Those tiles have a porosity that is below 1% and are practically impervious even after breaking impact tests.