A STUDY ON POLYETHYLENE TEREPHTHALATE (PET) AS PARTIAL REPLACEMENT OF FINE AGGREGATE IN CONCRETE MIXTURE
Main article
Abstract
A major concern in today world is the growth of construction sector which leads the demand of construction material such as cement and aggregate to increase rapidly. As aggregate is non- renewable resource, the continuous of mining and quarrying activities will create more negative effect to the environment and shortage of aggregate in the future. In addition, polyethylene terephthalate (PET) is one of the most widely used plastics in the world, especially in the production of containers for beverages. However, after single use, most PET bottles used as beverage containers are thrown out and activities such as landfill and incineration take place on the management of disposed PET bottles. Therefore, PET as a replacement of aggregate is a mutualism solution that can solve both of the problems. The aim of this research is to determine the effects of polyethylene terephthalate (PET) as partial replacement of fine aggregate in concrete mixture. In all, 15 past studies between 2012 and 2021 were reviewed and discussed based on the findings on workability, density and compressive strength of concrete, and the replacement ratios of vary from 5% up to 60% by volume. It was found that the workability, density and compressive strength on concrete with partial replacement of polyethylene terephthalate (PET) as fine aggregate showed that there was a reduction in term of these three parameters as the replacement of PET as fine aggregate increases. However, two researchers observed that at 5% of replacement level gives a positive effect on the compressive strength of concrete.
