Manufacturing of roofing tiles by using plastic waste and agricultural waste

Abstract

Most available agricultural waste, rice husks and plastic waste, HDPE were selected as raw materials. HDPE is a huge waste material in Sri Lanka. Therefore, it is very important to select HDPE as a raw material for roofing tile. According to the paddy statics in Sri Lanka the production of rice for the year 2017, is roughly equals to 2,383,000MT. Therefore, it can be assumed that much of rice husks are generated as agricultural waste. Hence, those materials were applied to make new composite material. Main objective of this research is reduced the waste emission and making durable and environment friendly roofing material of HDPE waste. Rice Husk was grinded, and a fine dust was obtained. After that, equal size of rice husk (3mm) was obtained by sieving. Materials were mixed in plasticorder mixture according to 0%, 5%, 10%, 15%, 20%, 25% weight percentage of rice husk. Total weight of sample must be 40g for this equipment and it helps to obtain well-mixed sample of rice husk and HDPE. Mixed materials were subjected to the compression mould machine. Total weight of sample must be 80g for this equipment and it helps to obtain required thickness of material sheets for the experiments. Two samples from plasticorder were needed to prepare one material sheet from compression mould.