You have more than likely seen, walked or driven over rubberised asphalt and never realised what it was, but after reading this you will remember the times that you did and probably still do. So what exactly is it? Well, it’s a mixture of asphalt concrete and finely ground down, worn rubber tyre that has been used as a great road surfacing material in a number of countries since the 1970’s. It has thus proven to be an excellent product to normal asphalt in a number of ways, including its general wear ability, resistance to cracking, and lowering of traffic noise.
It also provides:
- A wonderful alternative method of recycling used tyres than having to dump them wastefully in landfills.
- The rubberised asphalt production technique involves the grinding down of worn tyres and then the removal of any fabric and steel fibres, and then combining what is left over with a binder and an asphalt cement mix.
- This mixture is then laid down as superb surfacing in Norwich, via the same way as regular asphalt surfacing material is.
Rubberised Asphalt’s Interesting Past
- In an effort to focus on road surface deterioration in the early 1970’s, the City of Phoenix (United States), laid down rubberised asphalt to an area of road as a temporary solution.
- Alas, and surprisingly, against negative expectations, the quick fix turned out to be indeed very successful and the road required no resurfacing for another 20 odd years!
- This led to the development of rubberised asphalt as an ideal road surface solution, and why this surfacing has now become renowned for its amazing abilities.
How It’s Formulated
- After the removal of all the fabric and steel reinforcing, and then being ground down into an aggregate resembling ground coffee, the crumb rubber, as it is called, is then gathered and sent to an asphalt production facility.
- This crumb rubber is then mixed with a unique binding agent and transferred to a hot asphalt facility where it is mixed with conventional a hot asphalt cement mix made from asphalt and a collection of fine stone and/or sand.
- This final mix is then laid on the road’s surface with the use of professional surfacing technology.
- Rubber-treated asphalt grants many advantages over regular mixes.
- Roads which have been laid with it, happen to last and age better than regular ones due to the flexibility of the rubber and the antioxidants from the crumb rubber.
- Rubberised asphalt surfaces also withstand the formation of ridges, and skidding is a thing of the past, making it perfect for safer driving conditions.
- Rubber-treated asphalt surfaces are also well known to produce a lot less road noise,
- And one of the most important benefits of the use of rubberised asphalt is the amazing environmental impact it has had, with around about 500 to 2,000 scrap tyres going into every lane mile of road surface.
Rubberised asphalt is the future now and certainly here to stay!