What is asphalt?
There are two fundamental components in asphalt. The first are aggregates; A combination of crushed rock, stone, gravel, and sand. Aggregates make up approximately 95% of the hot mix.
The remaining 5% is a component called bitumen, also known as asphalt cement. Bitumen is the black glutinous material that holds the aggregates together, made from the by-products of refined crude oil (Unrefined Petroleum).
For a more profound knowledge of asphalts ingredients, the elemental components include hydrogen, oxygen, sulphur, nitrogen, carbon and small amounts of iron, vanadium and nickel.
What is asphalt paving?
The process of applying asphalt and bituminous materials to a car park, driveway or road is called Asphalt Paving.
The materials are heated to an average of 160° then held hot during transport to site by an asphalt cartage truck. The tipper delivers the material to an asphalt paving machine, where it is spread on the road, followed by compaction, competed with a series of asphalt roller machines. The mixture soon cools after compaction to form the asphalt pavement.