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In page Concrete:
"Asphalt concrete (commonly called asphalt,[1] blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, as well as the core of embankment dams.[2] Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century.[3] It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. The process was refined and enhanced by Belgian inventor and U.S. immigrant Edward De Smedt.[4]
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