The company MacRebur, founded in 2016 in Lockerbie by Toby McCartney, Gordon Reid, and Nick Burnett, transforms plastic waste —equivalent to thousands of bottles and bags— into granules used as an additive for asphalt. The goal is to reduce the use of bitumen, a petroleum derivative, and improve the durability of roads.
The plastic is not incorporated as loose fragments but is industrially melted to act as a stronger and more flexible binder. This allows the material to be manufactured in conventional plants without the need for additional machinery.
International Expansion
The technology is already applied in more than 30 countries, including the United Kingdom, Australia, South Africa, Dubai, and several nations in America.
The patented compound MR6 can be up to 60% more resistant and offer a lifespan up to 10 times longer than traditional asphalt, reducing the formation of potholes and cracks.
Origin of the Idea
The concept was born when Toby McCartney observed in India the improvised use of melted plastic to fill potholes in asphalt.
Inspired by this practice, he developed a controlled industrial version in Scotland, which today stands as an example of circular economy applied to road construction.
Concern About Microplastics
One of the most delicate aspects is the risk of microplastics. MacRebur clarifies that it uses processed polymers that melt during mixing and integrate into the asphalt binder, preventing loose fragments from remaining on the road. This difference is key to understanding the technology and avoiding misinterpretations.
Even so, applications must meet technical standards and undergo independent tests to ensure safety, resistance, adhesion, and thermal stability.
Main Benefits
- Positive environmental impact: prevents millions of tons of plastics from ending up in landfills or oceans and reduces energy consumption to produce virgin materials.
- Structural improvement: polymers increase the cohesion and elasticity of the mixture, reducing potholes and cracks.
- Greater durability: less maintenance and repairs, with long-term economic savings.
- Circular economy: reduces the use of bitumen and turns polluting waste into road resources.
A Growing Market
Eco-asphalt is no longer an environmental curiosity: it competes directly with traditional paving solutions. Its international expansion demonstrates that reusing plastics in roads can be a viable strategy to reduce the carbon footprint by up to 10%, conserve natural resources, and improve urban infrastructure.
MacRebur’s proposal shows how innovation can transform an environmental problem into a practical solution. By turning plastic waste into more resistant and durable roads, the Scottish company paves the way towards a sustainable road construction model, where circular economy and emission reduction are integrated into everyday life.
