Electronic Theses and Dissertation

Pemanfaatan limbah plastik merupakan salah satu upaya untuk mengurangi pencemaran lingkungan dan meningkatkan nilai guna limbah. Penelitian ini bertujuan untuk menganalisis pengaruh variasi proporsi campuran limbah plastik polypropylene (PP) terhadap sifat mekanis dan paving block, yaitu kuat tekan dan daya serap air. Material yang digunakan dalam penelitian ini terdiri dari pasir sebagai agregat halus dan limbah plastik PP yang berfungsi sebagai bahan pengikat melalui proses pemanasan. Pembuatan dan pengujian benda uji dilakukan di Laboratorium Konstruksi Bahan Bangunan, Universitas Syiah Kuala, dengan variasi proporsi campuran pasir/PP 40/60, 50/50, 60/40, 80/20, dan 100/0. Pengujian kuat tekan dan daya serap air dilakukan berdasarkan SNI 03-0691-1996, kemudian data dianalisis menggunakan Analysis of Variance (ANOVA) satu arah. Hasil penelitian menunjukkan bahwa seluruh variasi campuran memenuhi persyaratan daya serap air maksimum 3% dan kuat tekan minimum 8 MPa sesuai standar SNI. Hasil analisis ANOVA menunjukkan bahwa variasi proporsi campuran berpengaruh signifikan terhadap kuat tekan, namun tidak berpengaruh signifikan terhadap daya serap air. Hasil penelitian ini menunjukkan bahwa pemanfaatan limbah plastik PP sebagai bahan pengikat dalam paving block berpotensi menghasilkan produk yang memenuhi standar mutu dan dapat digunakan untuk perkerasan dengan beban ringan hingga sedang.

Utilization of plastic waste is one of the efforts to reduce environmental pollution and increase the value of waste. This study aims to analyze the effect of variations in the proportion of polypropylene (PP) plastic waste mixture on the mechanical properties of paving blocks, namely compressive strength and water absorption. The materials used in this study consisted of sand as a fine aggregate and PP plastic waste which functions as a binder through a heating process. The manufacture and testing of test specimens were carried out at the Building Materials Construction Laboratory, Syiah Kuala University, with variations in the proportion of sand/PP mixtures of 40/60, 50/50, 60/40, 80/20, and 100/0. Compressive strength and water absorption tests were carried out based on SNI 03-0691-1996, then the data were analyzed using one-way Analysis of Variance (ANOVA). The results showed that all mixture variations met the requirements for maximum water absorption of 3% and minimum compressive strength of 8 MPa according to SNI standards. The results of the ANOVA analysis showed that variations in the mixture proportions had a significant effect on compressive strength, but did not significantly affect water absorption. The results of this study indicate that the use of PP plastic waste as a binding material in paving blocks has the potential to produce products that meet quality standards and can be used for paving with light to medium loads.