Outdoor Engineering
or removed within the pavement before the water is stored or gradually released into the drainage network or natural infiltration. Concrete block paving can be used in almost all circumstances, full infiltration to the ground, partial infiltration with excess water directed to the next SUDS stage; or full containment and controlled release to the next SUDS stage.
Concrete block permeable paving is ideally placed to meet the Code of Practice3
requirements and is a good choice for architects looking for a truly holistic, design-led solution. There’s an extensive range of permeable paving options available now and the styles, finishes and colours available means architects can have real design freedom when deciding on the aesthetics for the streetscape. In addition, the performance of these products is comparable, arguably better, than standard pre-cast concrete paving products. Permeable paving not only provides a level, firm and slip resistant surface, it removes the needs for cross-falls, channels and gulleys.
Furthermore, correctly designed, concrete block permeable paving can support heavy trafficking and loads, making it ideal for all shared surfaces and residential roads, as well as car parks and hard landscaping. A real benefit to the client, of course, is that very little maintenance of a permeable paving system is required - and as there’s no need to install below-ground drainage, ongoing cost and maintenance is kept to a minimum, if SUDS is designed in from the start of the project.
The industry needs to grab the opportunities that SUDS presents with both hands. Earlier engagement with landscape architects and/or SUDS manufacturers will help ensure the right SUD solution is identified for the project - whether that’s permeable hard landscaping systems of soft SUDS, such as ponds, filter drains, artificial concrete streams etc. In doing so, architects, designers and engineers will be able to achieve effective delivery, visual appeal and a sustainable solution for the future.
Aggregate Industries offers a range of SUDS options including concrete block permeable paving, interlocking cavity grid systems, porous asphalt, porous concrete and open graded granular sub-base. Its technical support team can offer comprehensive advice on SUDS and assistance with system development, product selection and installation processes.
*BBC News Online (25th March 2016) CHARCON
TEL: 01335 372222 9
WWW.CHARCON.COM
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