Tarmacadam generic paved areas at airports, especially the apron near airport terminals, although these areas are often made of concrete. Similarly in the UK the word "tarmac" is much more commonly used by the public when referring to asphalt concrete. Tarmacadam Tarmacadam is a road surfacing material made by combining macadam surfaces, tar, and sand, patented by Welsh inventor Edgar Purnell Hooley in 1902. The terms "tarmacadam" and tarmac are also used, with varying degrees of correctness, for a variety of other materials, including tar-grouted macadam, bituminous surface treatments, and modern asphalt concrete. The term is also often used to describe
Playground surfacing States and Canada the International Play Equipment Manufacturers Association (IPEMA) provides a third-party certification service enabled by appointing a testing laboratory to determine if a particular surface conforms to ASTM standards F1292, F1951, and F2075. IPEMA’s seal on a provider’s document is clear evidence that the covered material has met these tests. Owner/operators should request a copy of this certification for their own protection. Some suppliers do not offer proof of certification and mere membership in IPEMA does not mean that a particular supplier’s material has been certified. A list of certified suppliers can be found at www.ipema.org. Playground surfacing