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  2. Pressure washing - Wikipedia

    en.wikipedia.org/wiki/Pressure_washing

    Concrete cleaning with a surface cleaner. There are 2 main types of pressure washers. Hot water pressure washers and cold water pressure washers. Each have their own purpose. [4] Hot water pressure washers are best for washing flatwork (concrete driveways, walkways, etc) that can have grease or oil residue. They are best to use when cleaning ...

  3. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Lightweight concrete is often achieved by adding air, foams, or lightweight aggregates, with the side effect that the strength is reduced. For most routine uses, 20 to 32 MPa (2,900 to 4,600 psi) concrete is often used. 40 MPa (5,800 psi) concrete is readily commercially available as a more durable, although more expensive, option.

  4. Permeable paving - Wikipedia

    en.wikipedia.org/wiki/Permeable_paving

    Permeable interlocking concrete pavements are concrete units with open, permeable spaces between the units. [ 28 ] : 2 More recently manufacturers have introduced styles with smaller joint allowing for better ADA compliance and still capturing a significant amount of stormwater.

  5. Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Types_of_concrete

    Regular concrete can typically withstand a pressure from about 10 MPa (1450 psi) to 40 MPa (5800 psi), with lighter duty uses such as blinding concrete having a much lower MPa rating than structural concrete. Many types of pre-mixed concrete are available which include powdered cement mixed with an aggregate, needing only water.

  6. Concrete pavement restoration - Wikipedia

    en.wikipedia.org/wiki/Concrete_Pavement_Restoration

    When installing pavers over top of an existing asphalt of concrete pad, there are three installation options: sand set, bituminous set, and mortar set. [1] Due to rising oil prices, these methods are often less expensive than an asphalt overlay and last three times longer in addition to providing a greener, more sustainable solution.

  7. Pervious concrete - Wikipedia

    en.wikipedia.org/wiki/Pervious_concrete

    A pervious concrete street in 2005. Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.