STABILITY OF ASPHALT CEMENT CONCRETE PRODUCED FROM WASTE PLASTICS AS REPLACEMENT FOR AGGREGATE

The use of plastic bags subjected to pyrolysis at 1200C to produce plastic pellet as partial replacement for coarse aggregate in asphalt cement concrete is investigated in this paper. Optimum binder content was determined by Marshall test procedure and used for plastic pellet content of 0%, 2%, 4%, 6%, 8%, 10% and 12% by weight of coarse aggregate for asphalt concrete production. Three specimens for each percentage plastic pellet content is prepared with result based on Marshall design criteria for medium traffic. Results of the asphalt cement concrete showed that 2 to 4 percent of plastic pellet content satisfied Marshal’s requirements, hence the use of plastic pellet as partial replacement for coarse aggregate was recommended within this limit.