College of Engineering, Misan University discussed a master dissertation on the bending behavior of geopolymer concrete bridges including PET plastic waste by the postgraduate student, Ms. Nour Munther Shaker.

The dissertation aimed at studying the effect of using polyethylene terephthalate (PET) waste as a partial substitute for fine aggregate in concrete mixtures and evaluating the mechanical and physical properties of concrete, as well as its effect on the bending behavior of reinforced and unreinforced concrete panels reinforced with fibers.

The dissertation included evaluating the mechanical and physical properties of concrete and explaining its effect on the bending behavior of reinforced concrete beams by reviewing the effect of replacing cement with GGBFS and part of the sand with PET waste on the properties of concrete.

The dissertation reviewed that the presence of PET particles changed the mechanical and physical properties of the produced concrete, and that samples containing partial replacement ratios ranging between 5% and 15% increased in compressive, tensile and flexural strength compared to the reference samples and that the effect of GGBFS was positive on the mechanical properties of geopolymer concrete.