Tarmac

Tarmac (short for tarmacadam, or tar-penetration macadam) is a type of road surfacing material patented by Edgar Purnell Hooley in 1901. The term is also used, with varying degrees of correctness, for a variety of other materials, including tar-grouted macadam, bituminous surface treatments and even modern asphalt concrete.

Read more about Tarmac:  Origins, Later Developments