The performance of thermal property in concrete containing waste pet (polyethylene terephthalate) as an alternative sustainable building material

Abstract

Polyethylene Terephthalate (PET), known as plastic, is the most widely used product in the world today. However, the increase in the amount of imperishable plastic waste is a concern today. Repurposing of plastic waste in useful products such as concrete appears as an alternative in the construction industry. This paper’s main objective is to explore the performance of thermal properties in concrete by incorporating waste Polyethylene Terephthalate (PET) as an aggregate in a concrete mix. Other than reducing energy usage in buildings, reusing waste PET should introduce an improvement in friendly waste management. Laboratory experimental analysis was done by measuring the parameters of thermal conductivity on four types of concrete design mix which includes 0% PET, PET 5%, PET 15% and 25% PET in concrete block. Finally, an implementation of a sustainable approach to these new concrete materials; the obtained results highlight their mechanical properties of enhancement in thermal property, which reduces heat gain and achieve better thermal insulation compared to a traditional concrete mixture with a similar application of test type. This implementation has been proved to optimize efficient thermal performance towards sustainable building material.

An investigation of the use of plastic waste as aggregate in concrete

“…This means that 25% of PET has the lowest thermal conductivity and better thermal insulation. According to the results of previous studies [29,30] when 25% of PET was added to concrete, thermal conductivity decreased to less than 1 W/mK. There were differences between the outcomes of this study and previous studies related to a number of factors, such as type of cement, shape, particle size of PET, and measuring device.…”

An investigation of the use of plastic waste as aggregate in concrete

“…This means that 25% of PET has the lowest thermal conductivity and better thermal insulation. According to the results of previous studies (Sosoi, Abid et al, 2022) and (Halim, Taib, & Aziz, 2020) when 25% of PET was added to concrete, thermal conductivity decreased to less than 1 W/mK. There were differences between the outcomes of this study and previous studies related to a number of factors, such as type of cement, shape, particle size of PET, and measuring device.…”

Evaluation of Some Beneficial Environmental Impacts and Enhanced Thermal Properties Resulting from Waste Plastic Integration into Concrete

“…Halim et al [81] led a research process inspecting critical variant roles of plastic wastes in adjusting the thermal characteristics of concrete. The scientists selected leftover polyethylene terephthalate plastic to involve in concrete aggregate and estimated some thermal features of the new design mix.…”