Asphalt Shingle Roof from a Mixture of Plastic Bag Waste

Abstract

This research investigates the use of plastic waste in the production of asphalt shingle roofing. The plastic waste used in this research came from plastic bags that were salvaged from the environment. The plastic bags were cleaned and cut into small pieces and then mixed with asphalt using heat before finally making the asphalt plastic composite material samples for testing. The tests involve tear strength testing, thermal conductivity testing and a fire resistance test. The experiment results have shown that adding plastic waste to the mixture increases the tear strength of the asphalt shingle roof. Furthermore, it tends to increase as the amount of plastic waste increases in each formula and creates a higher than standard tear strength of at least 16.7 N. As stipulated in the ASTM D3462 for asphalt shingle roofs. Thermal conductivity tends to be lower as plastic bag content increases and is lower than the thermal conductivity of the asphalt shingle roofing on the market. The fire resistance test showed similar results when compared to the asphalt shingle roof sold on the market.