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Strength of Sand concrete Blocks Production Using Waste Plastic (Pet)
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Researchers found that mixing a small amount (5%) of shredded plastic waste into sand-based building blocks can produce strong, usable construction material while cutting costs and reducing plastic pollution. This matters because it offers a practical way to reuse plastic trash instead of it ending up in landfills, oceans, or breaking down into microplastics that can enter our water, food, and bodies. However, adding too much plastic weakened the blocks, so getting the ratio right is key to making this approach safe and effective for real-world building.
Sandcrete block is the most popular building material in construction industry. With the high cost of building it is becoming difficult for an average man to achieve an affordable housing. Again the dredging of sand for block production, the incessant dumping of plastics wastes in the environment is of great concern. This study aims to replace sand in sandcrete blocks production and investigate the suitability of using such blocks for building designs. This research discussed the material used, the methodology of production. The plastic was washed, dried, melted and shredded. Sieve analysis was performed on the sand and plastic samples, water absorption and compressive strength tests were conducted on the blocks at 28 days of curing. The tests revealed that the 5%replacement gave a good result of 3.27 N/mm2 which is suitable for block making. The other compressive strength results were below the standard recommended by Nigerian Industrial Standard. For the production of cost effective and performing sandcrete blocks, plastic wastes will serve since they are cheaply available, sustainable and recyclable. This will also help to reduce environmental pollution level. To improve the quality of sandcrete blocks, suitable selection of constituent materials.
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Strength of Sand concrete Blocks Production Using Waste Plastic (Pet)
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This paper isn't really about human health directly, it's about testing whether recycled plastic waste can replace some of the sand used to make concrete blocks for building homes. Researchers found that replacing just 5% of the sand with shredded plastic made blocks strong enough for construction, offering a way to build more affordable housing while reducing plastic pollution and excessive sand mining. However, higher amounts of plastic weakened the blocks too much to meet safety standards, so more research is needed before this becomes widely used.
Performance evaluation of PET-modified concrete with PET granules and manufactured sand as fine aggregates
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Researchers found that mixing shredded plastic bottles into concrete, replacing some sand, actually made it stronger when used at the right amount (2%). This matters because it gives plastic waste a useful second life instead of it sitting in landfills or being burned, which releases toxic fumes harmful to human health.
Development of Sustainable Concrete using Treated Waste Plastic as Fine Aggregate
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Researchers tested concrete made by replacing some sand with chemically treated shredded plastic. Mixing in 5% plastic kept the concrete nearly as strong as normal concrete, while higher amounts made it weaker and harder to work with, suggesting small amounts of treated waste plastic could be used in construction.
Use of Plastic Waste in Concrete : A Comprehensive Review on Strength of Concrete Mixture with Different Material
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This review paper looks at how recycled plastic waste (like PET bottles) can be mixed into concrete for building construction, finding that the right amount can actually improve certain properties while reducing landfill waste. This matters because it offers a practical way to reuse plastic that would otherwise pollute the environment—though the paper focuses on construction benefits rather than directly studying whether this affects microplastic exposure or human health, so more research would be needed to confirm concrete made this way doesn't shed plastic particles over time.
Pemanfaatan Limbah Plastik Sebagai Bahan Subsitusi Agregat Dalam Pembuatan Paving Block
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Researchers found that mixing recycled plastic waste (about 15% by weight) into paving blocks—the tiles used for sidewalks and driveways—actually made them stronger than blocks made without plastic, while higher amounts weakened them. This matters because it offers a practical way to reuse plastic waste in construction instead of letting it pile up in landfills or break down into microplastics that pollute soil, water, and eventually enter our food and bodies.
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