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    https://en.wikipedia.org/wiki/Pervious_concrete
    Pervious concrete - Wikipedia
    History

    Pervious concrete was first used in the 1800s in Europe as pavement surfacing and load bearing walls. Cost efficiency was the main motive due to a decreased amount of cement. It became popular again in the 1920… See more

    Stormwater Runoff-- The Pervious Concrete Solution
    05:49
    Stormwater Runoff-- The Pervious Concrete Solution
    YouTubeNRMCA21.7K viewsMar 23, 2010
    Stormwater management

    The proper utilization of pervious concrete is a recognized Best Management Practice by the U.S. Environmental Protection Agency (EPA) for providing first flush pollution control and stormwater management. As … See more

    Properties

    Pervious concrete consists of cement, coarse aggregate (size should be 9.5 mm to 12.5 mm) and water with little to no fine aggregates. The addition of a small amount of sand will increase the strength. The mixture ha… See more

    Testing and inspection

    Pervious concrete has a common strength of 600–1,500 pounds per square inch (4.1–10.3 MPa) though strengths up to 4,000 psi (28 MPa) can be reached. There is no standardized test for compressive strength. A… See more

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