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Line 1: − + + + − It includes crude asphalt as well as the following finished products: [[cements]], [[fluxes]], the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts.
Rewriting (more soon)
'''Asphalt''' is a dark brown-to-black cement-like material obtained by petroleum processing and containing [[bitumens]] as the predominant component. It is used primarily for road construction.
'''Asphalt''' (known in the industry as Hot Mix Asphalt, or HMA), is a combination of aggregates (usually crushed stone and some sand), filler (cement, hydrated lime or stone dust) and a [[coal|bituminous]] binder called "asphalt cement". Additives are sometimes used (e.g. rubber from old car tires) . Reclaimed "asphalt" from old roads, called RAP (recycled asphalt pavement), is also, increasingly, being used.
When hot, HMA is pliable and can be rolled flat to create a smooth, durable, water proof substrate.
[[Category:Construction]]
[[Category:Construction]]