ALI, D., & SHUAIBU, A. (2026). Design and Performance Evaluation of Plastic–Sand Interlocking Blocks Using Waste Polyethylene Terephthalate (PET) and Low-Density Polyethylene (LDPE) for Sustainable Construction. FUDMA Journal of Engineering and Technology, 2(2), 488-495. https://doi.org/10.33003/a3ked718