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TarmacDry for University of Reading car park

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Project brief

The University of Reading wanted a product that could tackle storm water management at its campus. This resulted in the first SUDS system to combine porous asphalt with an open drainage basin system by Tarmac. With a tight construction schedule and the need to specify a proven Sustainable Drainage system, the University’s estates team elected to specify TarmacDry.

Tarmac’s solution

The main challenge and the reason to combine the TarmacDry system with an open drainage basin was the low infiltration rates and falls across the site. The final design works with the natural topography of the site to channel the rainwater down through the porous asphalt surface and into the granular reservoir layer. Once within this stone layer water flows to the lowest point in the system to discharge into the open drainage basin. During a peak storm event the basin is designed to overflow into one of the existing drainage runs on campus. This approach was more cost-effective because the alternative would have been to re-engineer the system to have a deeper storage layer.

For details please download the full case study: TarmacDry at University of Reading car park (pdf, 199kb)
Read more about TarmacDry porous asphalt system

What are the benefits of using TarmacDry porous asphalt system?

  • Reduced risk of flooding

  • Fast installation over large areas

  • Lower cost due to less muck-away and you don’t have to dig as deep

  • No need for additional drainage systems

  • Environmentally-friendly to the water cycle

  • Cope with heavy rainfall

  • Smooth surface and skid resistance

  • Available in a range of colours

  • Patented and BBA accredited

  • TarmacDry cleans water which runs through it

  • Exceptional lifetime cost savings

  • TarmacDry is easier to clean than traditional block-paving systems

  • TarmacDry helps you to achieve up to 4 BREEAM points

Read more about TarmacDry porous asphalt system 

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For any questions about TarmacDry email:

tarmacdry@tarmac.co.uk

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TarmacDry porous asphalt system

Peter Ayers, Project Manager, University of Reading says:

“ We were originally going to use block paving for this job, but this would have meant a lengthy construction project and I also felt that this material would break up and not offer the long-term durability that we need. With TarmacDry, the construction was much quicker and the whole project was completed in eight weeks because there is no need for deep excavation. ”

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