Penggunaan Limbah Plastik Polyethylene Terephthalate (PET) pada Dinding Sumur Resapan

Abstract

The increasing population has led to an increase in human activities, including the construction of infrastructure by communities. This has resulted in changes to land use, such as converting open land into residential areas, and an increase in sedimentation in drainage systems, largely due to plastic waste. These issues contribute to flooding, where water easily accumulates. Therefore, addressing this problem is essential. One solution is to build infiltration wells. By using lightweight porous concrete with PET plastic waste as the well wall material, installation can be simplified without requiring extensive labor. Additionally, this approach facilitates water infiltration into the well and reduces plastic waste accumulation. The experimental method involved mixing PET plastic waste aggregates at varying percentages (0%, 10%, 20%, 30%, 40%, and 50%). The highest compressive strength was achieved in variation 50% PET (3,603 MPa), while the highest tensile strength occurred in variation 50% PET (0,566 MPa). The highest flexural strength was observed in variation 50% PET (0,933 MPa), and the highest infiltration rate was in variation 30% PET (0,0294 mm/hour). The optimal composition for constructing porous concrete infiltration wells is variation VI. The weight of four segments of a 100-meter-high well wall is 254,740 kg