Search results
Results from the WOW.Com Content Network
Asphalt batch mix plant A machine laying asphalt concrete, fed from a dump truck. Asphalt concrete (commonly called asphalt, [1] blacktop, or pavement in North America, and tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. [2]
Tarmac is sometimes incorrectly used, mostly by news media, as a term for any paved surface of an airport regardless of material, including the Airport apron;
Tarmacadam is a concrete road surfacing material made by combining tar and macadam (crushed stone and sand), patented by Welsh inventor Edgar Purnell Hooley in 1902. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces invented by Scottish engineer John Loudon McAdam in the early 19th century.
Later a mixture of coal tar and ironworks slag, patented by Edgar Purnell Hooley as tarmac, was introduced. A more durable road surface (modern mixed asphalt pavement), sometimes referred to in the U.S. as blacktop, was introduced in the 1920s.
Bitumen mixed with clay was usually called "asphaltum", but the term is less commonly used today. [15] In American English, "asphalt" is equivalent to the British "bitumen". However, "asphalt" is also commonly used as a shortened form of "asphalt concrete" (therefore equivalent to the British "asphalt" or "tarmac").
Tarmac delays can be one of the biggest headaches of air travel. A tarmac delay happens when an airplane that is awaiting takeoff or has just landed and passengers do not have an opportunity to ...
Only one forlorn-looking Mi-8 remained on the tarmac, but Abu Leyl dismissed it. "It doesn't even work," he said. "I guess that's why they didn't bother bombing it."
"Road metal" later became the name of stone chippings mixed with tar to form the road-surfacing material tarmac. A road of such material is called a "metalled road" in Britain, a "paved road" in Canada and the US, or a "sealed road" in parts of Canada, Australia and New Zealand. [48]