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Eco-Friendly Pavement Innovation: Compressive Strength of Plastic–Sand Paver Blocks
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Researchers developed eco-friendly paving blocks using post-consumer PET, HDPE, and LDPE plastic waste combined with local sand in coastal Indonesia, finding that a 1:1 plastic-to-sand ratio achieved the highest compressive strength of 9.84 MPa, meeting Class D criteria suitable for garden paths and light pedestrian use.
The growing accumulation of plastic waste in coastal regions like Pangkajene and Islands Regency has become a pressing environmental concern due to inadequate waste management systems. This study proposes an innovative solution by utilizing post-consumer plastic waste (PET, HDPE, and LDPE) combined with local Pinrang sand to produce lightweight, eco-friendly paving blocks. The experimental method involved melting shredded plastic and blending it with sand in various ratios (1:1, 1:2, 1:3), then molding and testing the compressive strength based on SNI 03-0691-1996 standards. Results showed that the 1:1 composition achieved the highest average compressive strength of 9.84 MPa among plastic-based samples, while conventional blocks reached up to 34.80 MPa. Plastic waste paving blocks met Class D criteria, suitable for light-use pavements, while conventional ones met Class B. Although the mechanical strength of plastic-based blocks was lower, their environmental benefits and lighter weight make them suitable for garden paths and pedestrian areas. This study affirms the potential of integrating plastic waste into construction materials, offering a sustainable and practical response to local waste challenges
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Plastic Waste-Based Paving Blocks: Towards A Sustainable Circular Construction Material
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Researchers tested four plastic-to-sand ratios for producing paving blocks from blended PET, PP, and LDPE waste, finding that a 75% plastic mix delivered the highest compressive strength at 11.64 MPa while pure plastic blocks offered the best water resistance and abrasion performance.
Technical, Economic and Perception-Based Assessment of Plastic Paver Blocks as an Alternative to Concrete Pavers
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Researchers compared plastic paver blocks made from 40% waste plastic and 60% sand against conventional M30 concrete pavers across mechanical, durability, and economic tests, finding plastic pavers met M40-grade compressive strength requirements, showed far lower water absorption and abrasion loss, and cost roughly 24% less, though limited availability and regulatory gaps remain barriers to adoption.
Development of Sustainable Paver Blocks using HDPE Plastic, Quarry Dust and Flyash
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Researchers developed interlocking paver blocks by substituting HDPE plastic waste, fly ash, and quarry dust for conventional cement and aggregate, demonstrating that the HDPE binder significantly reduces water absorption while the industrial by-products improve particle packing—yielding blocks with adequate compressive strength for pedestrian and light-traffic use.
Development of Sustainable Paver Blocks using HDPE Plastic, Quarry Dust and Flyash
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Researchers developed interlocking paver blocks by substituting HDPE plastic waste, fly ash, and quarry dust for conventional cement and aggregate, demonstrating that the HDPE binder significantly reduces water absorption while the industrial by-products improve particle packing—yielding blocks with adequate compressive strength for pedestrian and light-traffic use.
Pervious Pavement Blocks Made from Recycled Polyethylene Terephthalate (PET): Fabrication and Engineering Properties
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Researchers developed and tested pervious pavement blocks made from recycled PET plastic waste, finding they met engineering standards for strength and permeability. The study offers a dual benefit: diverting plastic waste from landfills while creating functional construction materials that help manage urban stormwater.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.