Did you know that asphalt protects bridges?
In Europe, most (if not all) steel and concrete bridges have asphalt surfacing on top. One of the main reasons for using asphalt on these bridges is to protect the steel and concrete structures from water and de-icing salts.
There are many requirements for surface layers on bridge decks.
They need to have:
- good skid resistance,
- a flat surface,
- low sound levels,
- sufficient resistance against deterioration,
- resistance against oil,
- water and minerals,
- less susceptibility to weather conditions,
- providing a waterproofing layer,
- high stability, resistance against fatigue,
- resistant to permanent deformation,
- and the ability to spread the loads for a safe and comfortable drive.