When designing a permeable paving there is one main tradeoff: between permeability and strength. The stronger the material, the fewer holes it can have; the more permeable, the weaker it is. A big ...

Most glove materials were permeable at rates below ASTM recommendations over the one-hour testing period. Vinyl was the most permeable material. Carmustine permeated the widest variety of materials.

All four lots use permeable materials that allow precipitation to percolate through rather than run off of the lots. The professors are studying how well these different pavements—permeable asphalt, ...

parking lots, driveways, building entryways and courtyards, walkways and sidewalks, and patios and terraces. The material's porosity, permeability and slip resistance make it ideal for tree surrounds.