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| Holes in asphalt are dangerous. |
Asphalt is a sticky, black and highly viscous liquid
or semi-solid that is present in most crude petroleums
and in some natural deposits sometimes termed asphaltum.
It is most commonly modelled as a colloid, with
asphaltenes as the dispersed phase and maltenes
as the continuous phase (though there is some disagreement
amongst chemists regarding its structure).
The primary use of asphalt is in road construction,
where it is used as the glue or binder for the aggregate
particles. The road surfacing material is usually
called 'asphaltic concrete' or simply AC in North
America, or simply 'asphalt' elsewhere. Within North
America the apparent interchangeability of the words
asphalt and 'bitumen' causes confusion outside the
road construction industry despite quite clear definitions
within industry circles... |
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