Stress-Strain Behaviour and Mechanical Strengths of Concrete Incorporating Mixed Recycled Plastics

Different types of recycled plastic have been used in concrete and most studies focused on the behaviour a single type plastic. However, separating wastes increases cost time processing. To tackle this problem, research presents an experimental investigation to determine effect incorporating different combinations three waste aggregates—Polyethylene terephthalate (PET), High Density Polyethylene (HDPE) Polypropylene (PP)—at replacement ratios coarse aggregate physical mechanical properties concrete. The include two at 10% 20% 15% 30% ratios. performance was assessed based various including workability, fresh dry densities, air content, compressive, indirect tensile flexural strengths, modulus elasticity, stress-strain ultrasonic pulse velocity. It is found that workability Mixed Recycled Plastic Concrete (MRPC) low rate independent minimum reduction compressive strength, elasticity were achieved by R3 (PET + PP) replacement, while R5 (HDPE highest strength velocity values. findings suggest mixed plastics good possibility partially replace aggregates which will benefit recycling community environment. Furthermore, study provide guidance industry concerning implementation unsorted as production