You will have walked or driven over what is known as “rubberised asphalt” and probably never known what it was, (although you may have noticed how smooth it was). So anyway, what is this rubberised asphalt all about? Basically, it’s a combination of asphalt concrete and finely ground up, used rubber tyres which has been put to great use as a superb road surfacing material in many nations since the 1970’s.
- It has been proven to be a superb product when compared to normal asphalt in different ways, which includes its wear ability and doesn’t crack.
- A great method for recycling used tyres instead of dumping them wastefully in landfills.
- The production of rubberised asphalt involves a method of grinding down used tyres and then removing any fabric and steel fibres. What remains is combined with a binder and an asphalt cement mix.
- This is then laid down on Norfolk’s roads by skilled groundwork contractors in Norwich, in the very same way as traditional asphalt surfacing.
The History of Rubberised Asphalt
- In an attempt to concentrate on road surface degeneration in the early part of the 1970’s, over in the USA, in Phoenix city, rubberised asphalt was first put down on a stretch of road as only a temporary quick fix road surface.
- And to everyone’s surprise and against negative expectations, the surface turned out to be extremely successful and the same road needed no resurfacing for another two decades!
- This then went on to the use of rubberised asphalt as a perfect road surface solution, and why nowadays this type of surfacing has become so popular for its unique abilities.
More Detail on How It is made
- After removing all the fabric and steel reinforcing of the tyre, and then ground into a substance that resembles ground coffee, this crumb rubber, as it is known, is collected and dispatched to an asphalt production facility.
- The crumb rubber is then combined with a special binding agent and then mixed with conventional hot asphalt cement mixture made from asphalt and fine stone and/or sand.
- This is the final mix which is then laid down on the UK’s road surfaces with the accompanying use of modern surfacing technology.
Rubberised Asphalt’s Benefits
Rubber-treated asphalt provides benefits which other regular mixes cannot match:
- Surfaces which have been covered with it, will last and indeed age a lot longer than regular types because of the flexibility of the rubber and the antioxidants in the crumb rubber.
- Rubberised asphalt surfaces also withstand the forming of any ridges, and when it comes to skidding, it never happens, thus, making it perfect for safer driving conditions.
- The surfaces are also renowned to make a lot less road noise,
- And nowadays one of the most vital advantages of using rubberised asphalt is the wonderful environmental impact it has had, with somewhere between 500 to 2,000 used tyres going into each lane mile of road surface.
Rubberised asphalt is definitely the way to go for all roads of now and the future!