Landfills and sewage plants produce methane, which is a greenhouse gas and a contributor to climate change. Moreover, durability of concrete structures is always questionable.
University of British Columbia engineers have developed a more resilient type of concrete using recycled tires.
Recycled-rubber roads are not new. But using the polymer fibres from tires has the unique benefit of potentially improving the resilience of concrete and extending its lifespan by reducing crack formation by more than 90 per cent compared to regular concrete.
Adding the fibre to concrete could shrink the tire industry’s carbon footprint and also reduce the construction industry’s emissions, since cement is a major source of GHG. One recycled tire produces 1kg or fiber that can be used to make concrete stronger. Almost three billion tires are produced each year around the world that ultimately land up in landfills. Therefore, these tires can be recycled to generate close to three billion kilograms of fibre.
Landfill / waste plant operators, Waste management operators, Civil engineers, urban landscape developers, city government
- Since adding the fibre to the concrete leads to improved durability with better resistance to loads and cracking, this technology could be used for concrete structures like buildings, roads, dams and bridges while reducing landfill waste and lowering the carbon footprint of the city. Introducing this new technology via smaller pilot projects in infrastructure development is suggested as the first step to implementation
- Expand scope and application of technology to bigger infrastructure and development projects
- Monitor the progress of this technology and record data on how it has reduced the environmental impact and lowered maintenance costs
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