@article{article_1576191, title={EXPERIMENTAL RESEARCH OF WASTE PET AND FOUNDRY SAND RECYCLING INTO BRICKS}, journal={ALKÜ Fen Bilimleri Dergisi}, volume={7}, pages={55–65}, year={2025}, DOI={10.46740/alku.1576191}, author={Bal, Nigar Sezen and Yolcular Karaoğlu, Sevim}, keywords={Geri dönüşüm, PET, tuğla, döküm kumu, sürdürülebilir inşaat malzemesi}, abstract={In this study, the aim is to produce PET-sand bricks that are more durable, lighter, more economical, have less water absorption, and have less thermal conductivity compared to clay bricks by using waste polyethylene terephthalate (PET) and waste foundry sand in different proportions. During the experiment, PET is allowed to melt, and the heated FS is gradually added to the container and mixed with the PET continuously. After the bricks were produced at different ratios, they were subjected to three-point bending, impact, water absorption, and thermal conductivity tests. The three-point bending test shows that the brick with the highest percentage of PET, S1, has the highest maximum stress, which is 17.04 MPa. The impact test result shows that S1 (1:2) and S2 (1:3) are impact-resistant and good-quality bricks. In the water absorption test, the results showed that S1 (1:2) has the lowest water absorption with 0.35%. Lastly, in the thermal conductivity test, it was determined that the red brick had the lowest thermal conductivity with 0.713 W/mk. All bricks produced in different proportions weigh less than red bricks. Moreover, since the production of PET-sand bricks does not require a long-term and high-temperature ceramic kiln, as in red brick, energy savings are provided, and the production of PET-sand is more economical.}, number={1}, publisher={Alanya Alaaddin Keykubat Üniversitesi}