Pengaruh penggunaan limbah plastik dan kaca pada campuran paving block = The effect of plastic and glass waste in paving block mix

Cathelyn, Anastasia (2019) Pengaruh penggunaan limbah plastik dan kaca pada campuran paving block = The effect of plastic and glass waste in paving block mix. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Paving block merupakan salah satu komponen dalam bidang konstruksi yang cukup banyak digunakan, tetapi bahan pembuatnya kurang ramah lingkungan. Salah satu upaya dalam menanggapi hal tersebut adalah dengan memanfaatkan bahan alternatif seperti limbah plastik dan limbah kaca sebagai bahan dasar paving block. Penelitian ini bertujuan memformulasi campuran paving block dengan menggunakan limbah plastik dan kaca. Pengujian yang dilakukan pada penelitian ini adalah ketahanan terhadap bahan (deterjen, oli, dan minyak goreng), uji kuat tekan, penyerapan air, dan Scanning Electron Microscope (SEM). Campuran plastik:pasir dengan rasio berat 70:30 mencapai kuat tekan rata-rata sebesar 17,24 MPa. Sedangkan, campuran plastik:kaca dengan rasio dan gradasi yang sama adalah 16,89 MPa dengan penyerapan air 0,33%. Gradasi kaca yang berbeda walaupun dengan rasio berat yang sama mempengaruhi besar kuat tekan paving block. Campuran semen:pasir dengan rasio berat 70:30 memiliki kuat tekan ratarata sebesar 8,49 MPa. Kuat tekan tersebut sekitar 50% lebih lemah dibandingkan dengan campuran plastik:kaca. Merendam sampel dalam deterjen dan oli menyebabkan pengurangan kuat tekan benda uji hingga sekitar 60% dan 15%. Sedangkan, minyak goreng menyebabkan peningkatan kuat tekan hingga sekitar 14%. Uji SEM menunjukkan benda uji yang direndam dalam minyak goreng memiliki susunan partikel yang lebih rapat dibandingkan dengan benda uji yang lain. / Paving block is widely used in construction however, its materials are not environmentally friendly. One of the efforts to mitigate this issue is by using alternative materials, such as plastic waste and glass waste. The objective of this research is to formulate a paving block mixture using plastic and glass waste. Several tests are conducted for this research. The tests are endurance against potential pollutants (detergent, motor oil, and used cooking oil), compressive strength, water absorption, and Scanning Electron Microscope (SEM). Plastic:sand mixture with 70:30 weight ratio has an average compressive strength of 17,24 MPa. On the other hand, plastic:glass mixture with the same ratio and gradation reach 16,89 MPa with 0,33% water absorption rate. This research found that compressive strength is affected by the variation of glass gradation. Cement:sand mixture with the weight ratio of 70:30 has the average compressive strength of 8,49 MPa. It is about 50% lower than plastic:glass mixture Soaking the sample in detergent and motor oil causes about 60% and 15% decrease in compressive strength respectively. However, cooking oil cause about 14% increase in compressive strength. SEM test shows that the sample soaked in cooking oil has the densest particle structure when compared to the other samples.

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