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单词 Asphalt mastic
释义

Asphalt mastic

英语百科

Asphalt concrete

 Asphalt batch mix plant
A machine laying asphalt concrete, fed from a dump truck
As shown in this cross-section, many older roadways are smoothed by applying a thin layer of asphalt concrete to the existing portland cement concrete, creating a composite pavement.
Blacktopping machine in operation in Laredo, Texas

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac or bitumen macadam in Great Britain and Ireland) is a composite material commonly used to surface roads, parking lots, and airports. 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. It is increasingly being used as the core of embankment dams.

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