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  2. Stormwater fee - Wikipedia

    en.wikipedia.org/wiki/Stormwater_fee

    About 73 percent of cities with a population of 100,000 or more apply a separate calculation method, which divides the cost of sewage into the rainwater cost. Usually, Germany calculates concrete, asphalt, and building roofs as impervious areas and charges an annual fee of $2.6 per m 2. Builders are installing rainfall storage tank and ...

  3. Permeable paving - Wikipedia

    en.wikipedia.org/wiki/Permeable_paving

    Black Locust Lumber wood pavers exceed 10.180 PSI (pounds per square inch) and have a Janka Hardness 1,700 lbf. [34] They are suitable for pedestrian and vehicular traffic in the form of pathways and driveways and are placed upon permeable foundations. [35]

  4. Pervious concrete - Wikipedia

    en.wikipedia.org/wiki/Pervious_concrete

    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. [15] Acceptance is based on the unit weight of a sample of poured concrete using ASTM standard no. C1688. [16]

  5. Macadam - Wikipedia

    en.wikipedia.org/wiki/Macadam

    A more durable road surface (modern mixed asphalt pavement), sometimes referred to in the U.S. as blacktop, was introduced in the 1920s. Instead of laying the stone and sand aggregates on the road and then spraying the top surface with binding material, in the asphalt paving method the aggregates are thoroughly mixed with the binding material ...

  6. Cost estimate - Wikipedia

    en.wikipedia.org/wiki/Cost_estimate

    A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

  7. Road surface - Wikipedia

    en.wikipedia.org/wiki/Road_surface

    Cold mix asphalt is often used on lower-volume rural roads, where hot mix asphalt would cool too much on the long trip from the asphalt plant to the construction site. [ 18 ] An asphalt concrete surface will generally be constructed for high-volume primary highways having an average annual daily traffic load greater than 1,200 vehicles per day ...

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