TarmacDry

Porous Paving Systems

SUDs Sustainable Drainage System
Porous Asphalt system

Tarmac’s porous paving is a full depth permeable asphalt paving system designed to combine structural performance with the capacity to store rain and surface water up to 35% of the pavement volume.

 

The 'SUDs' system

Stored water can be free draining into the sub-grade or contained using an impermeable geo-membrane for re-use or controlled release into the sewer system. It provides an alternative to conventional drainage systems and improves outflow water quality. Tarmac’ s porous paving system consists of 2 or 3 permeable asphalt layers on top of a granular coarse graded sub base layer. Geotextiles can also be used depending on the job requirements.

Benefits of the TarmacDry system

Reduced risk of flooding
Reduced effects of pollution
Greater water cleansing
Skid resistance
Can allow soak-away to the existing sub-grade
Can have a controlled outfall into positive drainage
Harvest and re-use water
No need for expensive ironwork or drainage system

Sustainable Drainage Systems such as Tarmac’s, combine a series of environmentally friendly elements to manage surface water run-off as close to its origin as possible, before it enters the watercourse.

 

Importantly, SUDS remove the need for any additional drainage systems, making them much more cost-effective.

The Experts' Opinion: SUD's solution for storm-water and drainage control

TarmacDry porous paving is an innovative pavement technology that actually holds, purifies and recycles water from torrential downpours, helping to plug the extreme effects of UK global warming: flash flooding and droughts.

First of all, this surface material can absorb water up to 30% of its own volume. In the past conventional drainage systems have been overwhelmed by floods. Tarmac's porous paving helps take the pressure off these systems by complementing the way in which they work. It then removes impurities like oil and sand before the water either commences its natural journey into existing ground or is diverted for household use and the watering of landscapes, helping to reduce our dependence on quality drinking water for everyday use.

Howard Robinson, Head of Product Development comments below:

See Howard Robinson's Powerpoint presentation on:
Asphalt Reservoir Pavements for Surface Water Management (pdf, 1.1mb)

This was orginally presentated at the SUDSnet National Conference 2007, November 14th 2007, Coventry University TechnoCentre.

 

Hear Howard Robinson talking about the SUDs system on
an extract of BBC Radio 4, 5/9/07, Programme on Drainage Pavements (mp3, 1486kb)

 

The Expert Blog

Discuss TarmacDry and SUDs with our Tarmac expert, Howard Robinson on New Civil Engineer's website.  Registration is required.

 

 

Case Study

Read a case study for the Porous asphalt system for Withywood Community Centre (pdf, 417kb) .

Contact Us
Contact our Sales team now for more information on our porous asphalt system or to request a quote.

Scotland and Northern England
David Parkinson
Mobile: 07702 635371
Email: david.parkinson@tarmac.co.uk

North West England and Midlands
James Freeman
Mobile: 07770 468219
Email: james.freeman@tarmac.co.uk

South West England and Wales
Ian Farrar
Mobile: 07702 632202
Email: ian.farrar@tarmac.co.uk

South East England and Anglia
Alan Sleigh
Mobile: 07894 490690
Email: alan.sleigh@tarmac.co.uk

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