Road Safety Adelaide provides bitumen service for small to large companies across Adelaide providing sealed access by both vehicle and foot to entertainment venues, sporting clubs, factories, warehouses and office buildings. From site preparation through to seal coating and line marking, our very experienced trained contractors ensure the highest quality finishes to all jobs.
Bitumen is a sticky, highly viscous liquid, and is a by-product of crude oil. It is separated in the same fractional distillation columns as gas, petrol, kerosene and diesel, but because its boiling point is so high (over 500°C), after the heating process is over, everything at the bottom of the column is collected and refined into usable bitumen.
Depending on the grade of bitumen and what has been added to it, it can be sprayed in liquid form between temperatures of 150 - 200°C.
Asphalt is a combination of a binder, aggregates and filler. This basically means bitumen is mixed up with stones and different combinations of sands and gravel to achieve a workable solid structure.
The average temperature of asphalt after production is between 150-180°C, and it is paved to a certain depth, normally between 30-60mm, with an asphalt paver. Asphalt is stronger than a bitumen sprayed seal, and if the base is strong underneath, the life expectancy of the pavement can stretch for many years.
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