earticle

영어

In recent years, researchers at home and abroad have carried out studies to ensure eco-friendliness and economical efficiency by extracting polyethylene terephthalate (hereafter referred to as PET)from industrial waste and reinforce structures with PET sheets. In this regard, this study aimed to provide basic data on the applicability of PET sheets as structural materials for construction. To this end, a total of 32 compressive concrete specimens were fabricated, and the lateral confinement effects of concrete reinforced with PET were examined. According to the results, the specimens reinforced with PET sheets did not undergo reinforcement fracture in the grain direction of sheet but suffered strength reduction after the maximum load. In addition, they exhibited the final failure modes with ductile behaviors different from those of the specimens reinforced with CFS. A comparative review between the experimental values and the calculated values of proposed equation for the confinement stress of concrete reinforced with more than 10-ply (0.50 mm) PET sheets found that the minimum value was 0.96, and the maximum value was 1.26, showing a high correlation coefficient (R) of 0.93.