Leisure and hospitality
Product / system manufacture
South East England
Mercedes Benz World
Construction Consultants Ltd
Mercedes-Benz World in Weybridge includes 2.5 kilometres of test circuits, which are available in nine configurations. Customers can experience, in safety, how their new car handles at speed, thanks to low-grip wet circles. This controlled environment promotes driver safety and gives Mercedes-Benz owners the chance to experience extreme road conditions with low risk.
The major wet circle located directly in front of the prestigious main building traditionally drained surface water in to a central soft landscaped area but due to excessive rainfall and frequent surface water from sprinklers servicing the wet circle, the soft area was prone to ground water flooding and had difficulty in recovering and maintaining vegetative cover.
This resulted in an unsightly area which could have been potentially hazardous to users of the circuit.
Marshalls was brought in to advise on the most suitable hard landscaping option for the projects.
Part of the challenge in replacing the unsightly soft landscaped area was to dig out and re-fit the area inbetween scheduled major outside events, this meant that only 10 days were given over to block paving installation.
The existing soft landscaping was excavated to a specified depth and replaced with a Priora permeable pavement construction, an infiltration system that allows surface water through the pavement joints and into the pre-designed permeable sub-base.
Priora paving eliminates ponding and breaks down hydrocarbons from contaminated run-off water in the sub-base in an environmentally friendly manner. The unique interlocking properties of Priora enabled the use of a simple design without the original retention channels.
The existing pump access chamber cover was raised in the centre of the circle to suit new levels and the existing sprinkler system bases were left insitu. Marshalls’ Decathlon linear drainage that was already in place around the circumference of the soft area was cleaned out and retained.
Marshalls suggested its machine lay solution was used to reduce the installation window without increasing the labour element and the cost. The machine lay installer was involved early in the process to provide installation, detailing and pre-contract planning advice.
An experienced machine lay installation team of four people completed the installation over the 3000m2 area in just nine days.
Around 3 to 6mm of Priora Aggregate was used to populate the joints, allowing surface water to pass through into the sub-base. Mechanical screeding of the permeable laying course aggregate further reduced installation time.
Joint project management between the installer and Marshalls throughout the duration of the project ensured the contract was completed on time and to a quality standard.
Mercedes Benz World now has a cost effective sustainable surface water solution which will dispose of surface water at source.
Marshalls sustainable urban drainage (SUDs) solution along with their machine lay expertise has ensured that the completed project is aesthetically pleasing whilst providing a durable wearing course with easy reinstatement properties.
Using Marshalls machine lay provided a cost effective mechanical installation that was equivalent to hand lay installation methods and significantly reduced the manual handling in the installation processes.
Marshalls’ SUDs solution on the project meant that there was no need for additional underground pipework and excavation, labour and costs associated with traditional drainage methods, as well as removing the burden of additional surface water to existing foul sewer systems.