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2. Mat - Wikipedia

   en.wikipedia.org/wiki/Mat

   Carpet mats and rubber mats differ in a number of ways. Carpet mats are generally tufted and have a rubberised anti-slip backing. On the other hand, rubber car mats are heavy duty and higher durability. While some car mats are the plain colour of rubber, many contain branded company logos, cartoon characters or advertisements. Some are in ...

3. Playground surfacing - Wikipedia

   en.wikipedia.org/wiki/Playground_surfacing

   Poured rubber surfacing: This is a seamless rubber surface composed of two layers that is poured in place (PIP). The first layer, or "wear layer", is typically 3 ⁄ 8 inch (9.5 mm) thick and made of EPDM or TPV granules. The second layer, or "cushion layer", is 1–5 inches (25–127 mm) thick and made of crumb rubber or recycled rubber tires.

4. Marston Mat - Wikipedia

   en.wikipedia.org/wiki/Marston_mat

   RAF aircrew with one of their Bristol Beaufighters on a PSP airstrip at Biferno, Italy, August 1944. Marston Mat, more properly called pierced (or perforated) steel planking (PSP), is standardized, perforated steel matting material developed by the United States at the Waterways Experiment Station shortly before World War II, primarily for the rapid construction of temporary runways and ...

5. Tile drainage - Wikipedia

   en.wikipedia.org/wiki/Tile_drainage

   Johnston, the "father of tile drainage in America", [12] continued to advocate for tile drainage throughout his life, attributing his agricultural success to the formula "D, C, and D", i. e., dung, credit, and drainage. [13] The expansion of drainage systems was an important technical aspect of Westward Expansion in the United States in the ...