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  2. Concrete recycling - Wikipedia

    en.wikipedia.org/wiki/Concrete_recycling

    Concrete recycling is the use of rubble from demolished concrete structures. Recycling is cheaper and more ecological than trucking rubble to a landfill . [ 1 ] Crushed rubble can be used for road gravel, revetments , retaining walls, landscaping gravel, or raw material for new concrete.

  3. Recycling by product - Wikipedia

    en.wikipedia.org/wiki/Recycling_by_product

    Plastic recycling is low in the waste hierarchy, meaning that reduction and reuse are more favourable and long-term solutions for sustainability. It has been advocated since the early 1970s, [41] but due to economic and technical challenges, did not impact the management of plastic waste to any significant extent until the late 1980s. The ...

  4. Recycling by material - Wikipedia

    en.wikipedia.org/wiki/Recycling_by_material

    Crushing concrete from an airfield Concrete recycling is the use of rubble from demolished concrete structures. Recycling is cheaper and more ecological than trucking rubble to a landfill . [ 3 ] Crushed rubble can be used for road gravel, revetments , retaining walls, landscaping gravel, or raw material for new concrete.

  5. Waste management - Wikipedia

    en.wikipedia.org/wiki/Waste_management

    The reuse stage encourages finding alternative uses for products, whether through donation, resale, or repurposing. Reuse extends the life of products and delays their entry into the waste stream. Recycling, the final preferred stage, involves processing materials to create new products, thus closing the loop in the material lifecycle.

  6. Rubble trench foundation - Wikipedia

    en.wikipedia.org/wiki/Rubble_trench_foundation

    A foundation must bear the structural loads imposed upon it and allow proper drainage of ground water to prevent expansion or weakening of soils and frost heaving. While the far more common concrete foundation requires separate measures to ensure good soil drainage, the rubble trench foundation serves both foundation functions at once.

  7. Recycling in the United States - Wikipedia

    en.wikipedia.org/wiki/Recycling_in_the_United_States

    Recycling materials waiting to be barged away on the Chicago River Trash and recycle bin at George Bush Intercontinental Airport. Recycling statistics (ca. 2014) [16] with similar numbers as of 2015 [17] An average of approximately 258 million tons of trash is generated by the United States in 2014 34.6% was recycled; 12.8% was combusted for ...

  8. Circular economy - Wikipedia

    en.wikipedia.org/wiki/Circular_economy

    A circular economy (also referred to as circularity or CE) [1] is a model of resource production and consumption in any economy that involves sharing, leasing, reusing, repairing, refurbishing, and recycling existing materials and products for as long as possible.

  9. Repurposing - Wikipedia

    en.wikipedia.org/wiki/Repurposing

    Reuse is not limited to repeated uses for the same purpose. Examples of repurposing include using tires as boat fenders and steel drums or plastic drums as feeding troughs and/or composting bins. Incinerator and power plant exhaust stack fly-ash is used extensively as an additive to concrete, providing increased strength.

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