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Gamma-ray shielding research is critical in industries ranging from medical radiography to nuclear power, where high-energy gamma radiation poses serious health concerns and practical obstacles. Traditional insulation materials such as lead are effective but often have disadvantages. Recent research has concentrated on producing novel materials that provide excellent gamma ray attenuation and have increased sustainability and economic benefits. This study paper combines Palm Oil Fuel Ash (POFA) and Polyethylene Terephthalate (PET) waste into concrete mixtures to create a new, environmentally friendly gamma ray shielding material. By including these industrial and post-consumer waste items, the project hopes to improve the shielding qualities of concrete while also addressing environmental waste disposal challenges, providing a dual advantage of radiation protection and trash management. This research aims to improve the protective qualities of concrete mixtures by adding POFA and PET and to compare the mechanical properties of this incorporated mixer concrete with standard concrete. High quantities of silica are reported to be present in POFA made from palm oil, which can increase the durability and strength of concrete. Concrete's qualities and impacts can be enhanced using the polymer PET. In order to ascertain the ideal ratio of POFA to PET in concrete mixes, the research entailed carrying out multiple trials. The compressive strength, water absorption, and gamma-ray attenuation characteristics of POFA-PET will be assessed. Additionally, the components of the concrete mixture interact chemically and microstructurally. The findings of this investigation will offer crucial information on the possible uses of POFA-PET blends as materials for gamma-ray shielding.