THE EFFECT OF CONCRETE’S PROPERTIES ON PARTIAL REPLACEMENT OF FINE AGGREGATE WITH DIFFERENT SIZE RANGES OFPOLYETHYLENE TEREPHTHALATE (PET) IN CONCRETE MIXTURE
Main article
Abstract
Human beings use up to 50 billion tonnes of aggregate every year and the extraction of aggregate give severe impacts to the environment. Therefore, finding an alternative material to replace aggregates in the concrete mixture is necessary. Plastic pollution is the scourge of humanity. Plastic waste that causes significant challenges in recycling and leads to massive plastic pollution. This study aims to investigate tthe effects of utilizing polyethylene terephthalate (PET) as a partial replacement for sand in concrete by using two different range of PET which are 2mm-1.18mm and 1.18mm-600μm. The effects on the properties of concrete such as compression were examined. A group of five concrete mixtures containing PET was prepared as a partial substitute for sand with the replacement of 0%, 5%, 10%, 25% and 50%. Concrete was cast to determine the behavior of fresh and hardened concrete in terms of workability, unit weight and compressive strength. The experimental results showed an increment in workability, reduction in unit weight, the replacement harmed the compressive strength of concrete at varying percentage of replacement and sizes of PET. However, this study had proved that the plastic waste can be replaced by specific percentages and sizes
