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Pemanfaatan Sampah Kantong Plastik Sebagai Bahan Pengganti Semen Pada Pembuatan Paving Blok
Plastic shopping bags are easy to obtain for free or at low prices, hence contribute as the highest quantity among plastic waste. The plastic shopping bags waste has no economic value. Usually they are just thrown away. Alternatively is utilizing them to produce paving block by mixing with sands. The objective of this experiment is to evaluate the best ratio composition of plastic shopping bags waste and sand, followed by evaluation of the physical-mechanical properties of this particular paving block. Several different mixture ratio of weights of plastic shopping bag and sand were evaluated to obtain the best physical-mechanical properties of the paving block. The mixture ratios of weight of plastic shopping bags waste and sand were 1:1, 1:2,
1:3, 1:4 and 1:5, respectively. The shopping plastic bags waste were melted before mixed with sand. The mixture with different ratio were mixed with same pressure. The paving block mixed with ratio of 1:4 resulting in the best physical-mechanical properties as revealed by no defect, no crack and fine surface. The highest compressive strength of 17.4 MPa, friction resistance of 0.138 mm/sec, water absorption of 2.518 % considered that this kind of paving blocks can be used in parking area.
Keywords: paving block; plastic shopping bags waste; physical-mechanical properties
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