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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.
Rubberized asphalt is the largest market for crumb rubber in the United States, consuming an estimated 220 million pounds (100 kt), or approximately 12 million tires annually. [2] Crumb rubber is also used as ground cover under playground equipment, and as a surface material for running tracks and athletic fields. [2]
The OEHHA has conducted additional studies on potential negative human health effects associated with the use of recycled waste tires in playground and synthetic turf products. [11] Although rubber mulch is generally regarded as safe, recycled tire rubber leachates do contain certain minerals and compounds which may be ecotoxic in high ...
In measuring surface temperatures of playground equipment, the team found that in 100-degree Fahrenheit (37.7 C) weather without shade, a slide can heat up to 160 degrees (71.1 C), but a covering ...
Playgrounds with equipment that children may fall off often use rubber mulch on the ground to help cushion the impact. [27] Playgrounds are also made differently for different age groups. Often schools have a playground that is taller and more advanced for older schoolchildren and a lower playground with less risk of falling for younger children.
Rubber grass mats are used commonly for around play equipment on playgrounds, schools and domestic properties where there is a risk of falling. As one of the most common and simple methods of protecting against a critical fall from height, rubber grass mats are usually simply laid on a grass or soil surface and immediately offer protection ...
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