RANCANG BANGUN ALAT CETAK PAVING BLOCK PORTABLE UNTUK PENGGUNAAN TAMAN DAUR ULANG LIMBAH PLASTIK

The increasing volume of plastic waste in Indonesia reaching 7.68 million tons per year requires innovative solutions to reduce environmental pollution, hence this research aims to design and manufacture a portable paving block molding machine to recycle PET plastic waste into valuable building material products. The Design for Manufacturing and Assembly (DFMA) method was used in the design process with Autodesk Inventor 2023 software, resulting in a portable paving block molding machine measuring 420mm x 367mm x 385mm that enables operation in various locations to process plastic waste directly through PET plastic melting at 242°C, mixing with aggregates, and molding using a 1:2:1 composition (plastic : fine aggregate : coarse aggregate). The quality of produced paving blocks was evaluated based on SNI 03-0691-1996 through three main testing parameters, where water absorption testing showed results of 4.85%-5.51% which meets SNI 03-0691-1996 standards (3%-10%), dimensional testing meets ±8% tolerance with
results of length 20.96 ± 0.024 cm, width 10.48 ± 0.088 cm, and height 6.15 ± 0.034 cm, while compressive strength testing achieved a maximum value of 11.791 MPa meeting grade D standards for garden and other applications. The research successfully produced an innovative and affordable portable paving block molding machine as a practical solution for processing plastic waste into environmentally friendly building material alternatives with quality meeting national standards.
Keywords: plastic waste, SNI 03-0691-1996, water absorption, dimensional, compressive strength