Tarmacadam

Tarmacadam is a road surfacing material made by combining macadam surfaces, tar, and sand, invented by Scottish engineer John Loudon McAdam in the early 1800s and patented by Welsh inventor Edgar Purnell Hooley in 1902. The terms "tarmacadam" and tarmac are also used for a variety of other materials, including tar-grouted macadam, bituminous surface treatments, and modern asphalt concrete.

Tarmacadam

Tarmacadam is a road surfacing material made by combining macadam surfaces, tar, and sand, invented by Scottish engineer John Loudon McAdam in the early 1800s and patented by Welsh inventor Edgar Purnell Hooley in 1902. The terms "tarmacadam" and tarmac are also used for a variety of other materials, including tar-grouted macadam, bituminous surface treatments, and modern asphalt concrete.