Guidance for Usage of Permeable Pavement at Airports (2017) / Chapter Skim
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9 2.1 Introduction Permeable pavements can be constructed using a variety of surface materials. These permeable surfaces are typically placed over an aggregate base/subbase reservoir, which collects the water that infiltrates through the surface.
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Figure 1. Generic permeable pavement cross-section.
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types of permeable pavements and their Benefits 11 liner (e.g., geotextile, clay barrier) between the reservoir course and subgrade is included to prevent infiltration of stormwater into the subgrade (ASCE 2015)
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12 Guidance for Usage of permeable pavement at airports Figure 5. Typical PICP cross-section.
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types of permeable pavements and their Benefits 13 2.6.2 Pervious Pavers Pervious paver pavement consists of unit paving typically made of a combination of uncrushed or crushed pea-sized stones bound together with a polymer or cement (ASCE 2015)
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14 Guidance for Usage of permeable pavement at airports 2.6.3 Rubber Overlay Pavement Rubber overlay pavements are a type of permeable pavement made from a mix of recycled rubber granules (0.24 to 0.4 in. in size)
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types of permeable pavements and their Benefits 15 it is going to drain into the permeable pavement structure. For a full-infiltration system, this provides a nearly direct access to the subgrade.
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16 Guidance for Usage of permeable pavement at airports materials used may not be as costly as the base/subbase reservoir aggregate. A filter fabric may also be required in the permeable pavement design but may not be needed for a conventional pavement.
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types of permeable pavements and their Benefits 17 2.7.2 Performance Expectations and Concerns Permeable pavements need to meet design requirements for their expected design lives, just as other pavements do. They also need to meet similar functional and safety requirements as standard pavements.
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