Pervious concrete definition

Pervious concrete means a type of permeable pavement made with a rigid pavement similar to conventional concrete with the fine material reduced to form voids between the aggregate and allow water to infiltrate.
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Pervious concrete means paving surfaces similar to conventional concrete except that
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Pervious concrete means paving surfaces similar to conventional concrete except that the mixture omits the fines to create stable air pockets within the final product to allow water to drain to the base below, reducing stormwater runoff and allowing for groundwater recharge. Pervious concrete typically may have a rougher surface than conventional concrete.
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Examples of Pervious concrete in a sentence

  • Pervious concrete is usually part of a water management system used to reduce runoff rates and volumes from on-grade surfaces such as patios, walkways, driveways, fire lanes, and parking spaces.

  • Special Equipment: Pervious concrete requires specific equipment for compaction and jointing.

  • Pervious concrete shall be uniformly deposited over the entire formed area.

  • Pervious concrete shall be constructed a minimum of 6 inches in depth, unless otherwise specified in the plans or special provisions.

  • Pervious concrete does not look or behave like typical concrete or asphalt.

  • The consideration set forth in Paragraph 2 above will compensate Employee for any and all claims arising out of Employee’s employment with and termination from employment with Employer, including but not limited to claims for attorney’s fees and costs, any and all claims for any type of legal, equitable, or statutory relief, and for Employee’s future compliance with the terms and conditions of this Separation Agreement.

  • Pervious concrete describes a near-zero-slump, open graded material with sufficient continuous voids to allow water to pass from the surface to underlying layers.

  • The Compressive Strength of 0.15% pp pervious concreteCOMPRESSIVE STRENGTH (N/mm2)18161412108642016.0212.1117 14 28comopressive strengthFigure 6 shows the results of compressive strength in the Pervious concrete when 0.2% of polypropylene fibres were added to specimen under study.

  • Pervious concrete mixtures can have compressive strengths ranging from 500 psi to 4000 psi (3.5 MPa to 28 MPa).

  • Pervious concrete as described by the American Concrete Institute (ACI) is a “near-zero slump, open-graded material consisting of Portland cement, coarse aggregate, little or no fine aggregate, admixtures, and water with void contents ranging from 15% to 35% and compressive strengths of 400 to 4000 psi (2.8 to 28 MPa)” (ACI 2006).

Related to Pervious concrete

  • Pervious surface means an area that releases as runoff a small portion of the precipitation that falls on it. Lawns, gardens, parks, forests or other similar vegetated areas are examples of surfaces that typically are pervious.

  • Impervious area means any surface that does not allow stormwater to infiltrate into the ground.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which (1) a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and (2) while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Impervious surface means a surface that has been covered with a layer of material so that it is highly resistant to infiltration by water.

  • Dry cleaning fluid means any non-aqueous liquid product designed and labeled exclusively for use on: fabrics which are labeled "for dry clean only", such as clothing or drapery; or S-coded fabrics. Dry cleaning fluid includes, but is not limited to, those products used by commercial dry cleaners and commercial businesses that clean fabrics such as draperies at the customer's residence or work place. Dry cleaning fluid does not include spot remover or carpet and upholstery cleaner. For the purposes of this definition, S-coded fabric means an upholstery fabric designed to be cleaned only with water-free spot cleaning products as specified by the Joint Industry Fabric Standards Committee.

  • Loading Zone means a parking stall which is set aside for use by commercial vehicles if there is a sign referable to that stall marked ‘Loading Zone’;

  • Deck means a walkway immediately adjacent to a swimming pool.

  • co-pilot means a pilot operating other than as pilot-in-command, on an aircraft for which more than one pilot is required, but excluding a pilot who is on board the aircraft for the sole purpose of receiving flight instruction for a licence or rating.

  • stacked bicycle parking space means a horizontal bicycle parking space that is positioned above or below another bicycle parking space and equipped with a mechanical device providing floor level access to both bicycle parking spaces.

  • Residual disinfectant concentration means the concentration of disinfectant measured in mg/L in a representative sample of water.

  • Modular building means, but shall not be limited to, single and multifamily houses, apartment

  • Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.

  • Asphalt means a dark brown to black cement-like material (solid, semisolid, or liquid in consistency) in which the predominating constituents are bitumens which occur in nature as such or which are obtained as residue in refining petroleum.

  • Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per million.

  • Submerged fill pipe means any fill pipe the discharge opening of which is entirely submerged when the liquid level is six inches above the bottom of the tank, or when applied to a tank which is loaded from the side, shall mean any fill pipe the discharge opening of which is entirely submerged when the liquid level is eighteen inches above the bottom of the tank.

  • Infiltrative surface means designated interface where effluent moves from distribution media or a distribution product into treatment media or original soil. In standard trench or bed systems this will be the interface of the distribution media or product and in-situ soil. Two separate infiltrative surfaces will exist in a mound system and an unlined sand filter, one at the interface of the distribution media and fill sand, the other at the interface of the fill sand and in-situ soil.

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Mixing zone means a limited area of a surface water body or aquifer where initial dilution of a discharge takes place and where certain water quality standards may be exceeded.

  • Dry cleaning facility means a facility engaged in the cleaning of fabrics in an essentially nonaqueous solvent by means of one or more washes in solvent, extraction of excess solvent by spinning, and drying by tumbling in an airstream. The facility includes, but is not limited to, any washer, dryer, filter, and purification systems, waste disposal systems, holding tanks, pumps, and attendant piping and valves.

  • Landing area means that part of a movement area intended for the landing or take-off of aircraft;

  • Cannabis concentrate means cannabis that has undergone a process to concentrate one or more active cannabinoids, thereby increasing the product’s potency. Resin from granular trichomes from a cannabis plant is a concentrate for purposes of this division. A cannabis concentrate is not considered food, as defined by Section 109935 of the Health and Safety Code, or a drug, as defined by Section 109925 of the Health and Safety Code.

  • Excavator means any person performing excavation or blasting.

  • Connector means a flanged, screwed, welded, or other joined fitting used to connect two pipelines or a pipeline and a piece of process equipment.

  • Underground tank means a device meeting the definition of tank whose entire surface area is totally below the surface of and covered by the ground.

  • iron ore concentrates means products (whether in pellet or other form) resulting from secondary processing but does not include metallised agglomerates;

  • Underground storage means storage of gas in a subsurface stratum or formation of the earth.