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asphalting (explore)

Asphalt (US Listeni/ˈæsfɔːlt/ or UK /ˈæsfælt/,[1][2] occasionally /ˈæʃfɔːlt/), also known as bitumen (US /bɪˈtjuːmən, baɪ-/,[3][4] UK /ˈbɪtjᵿmən/[5]) is a sticky, black and highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product; it is a substance classed as a pitch. Until the 20th century, the term asphaltum was also used.[6] The word is derived from the Ancient Greek ἄσφαλτος ásphaltos.[7]

 

The primary use (70%) of asphalt/bitumen is in road construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs.[8]

 

source: wikipedia

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Uploaded on April 30, 2016
Taken on April 29, 2016