Recycling of Polyethylene Terephthalate Wastes in Production of Hollow Sandcrete Blocks for Sustainable Construction

This study investigates the suitability of crushed polyethylene terephthalate (PET) waste, which is a non-biodegradable generated waste as substitute material for natural sand in production hollow sandcrete blocks sustainable infrastructure. The physical properties and PET aggregate materials used batching mixtures include; specific gravity, water absorption, bulk density particle size distribution were determined. While mechanical properties; density, compressive strength, absorption produced block samples using granulated replacement at 5%, 10%, 30% 50% studied. Results showed that aggregates exhibit lower compare to sand. addition finely partial gradually reduced increases mix. However, tendency reduces percentage dosages increases. A similar reduction trend was noticed strength blocks. results from 2.564 N/mm 2 1.140 mixes containing 5% PET, respectively, 2.991 1.510 respectively substitution with 7 28 days curing age. obtained indicate possibility comparable conventional will help promote green infrastructure reducing menace plastic pollution line UN Sustainable Development Goals.