TarmacDry, a proven SuDS system from Tarmac Limited, has been successfully combined with MasterTint, the company’s light-coloured asphalt, which includes specialist, durable pigment in a colourless bituminous binder to ensure that the colour is retained throughout the product.
James Freeman, National Special Products manager at Tarmac Limited, says: “Whether it’s the regeneration of urban streets, seafronts or the creation of new cycle paths, coloured asphalt is increasingly being chosen by specifiers to enhance street scenes. As well as being visually appealing, these areas also need to be future-proofed to deal with intense rainfall, so we felt it was important to offer a practical and proven system which can deliver both stormwater management as well as contributing to good urban design.”
Developed for lightly trafficked areas, pedestrian footways and car parks, TarmacDry is an alternative to permeable block paving. It effectively manages surface water by allowing it to pass through its porous structure into a granular reservoir layer. This acts as a temporary store, before discharging water at a controlled rate into the sub-soil, drainage ponds or into the primary drainage system.
Extensive research undertaken by Coventry University demonstrates that TarmacDry has proven capacity and can handle up to 5,000mm of rain in one hour.
The combined TarmacDry / MasterTint system is available in a range of bespoke colours. It offers long-term durability by combining quartzite aggregate, durable, light reflecting pigments and high-quality polymers with colourless binders to enhance the mechanical stability of the asphalt mix.
Tarmac is able to offer both products as a design and build package, with surfacing work undertaken by its National Contracting division.
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