Flood protection through new water retention bassins in Serris, France
In the community of Serris east of Paris, large areas had to be sealed for a major shopping centre with an extensive parking lot and other industrial buildings. In order to eliminate the risk of flooding during heavy rainfall, several large water retention tanks were subsequently built in the immediate vicinity of the shopping centre. So doing will conserve water for use in the green areas of the city.
Technique Béton supplied several high quality products for the tanks. The formwork was sprayed with a mould release agent before pouring the concrete in order to ensure an easy release of the formwork. This vegetable based agent is recognized for its high level of biodegradability.
Furthermore, Bataimant Magnetic Blocks were used to allow a perfect positioning of different varieties of frames in the vertical formwork. The company also supplied 2,000 hydro expansive rings and 4,000 associated hydro expansive plugs that were used to guarantee a perfect seal through or around the PVC spacers.
For the concrete floors, concrete spacers were supplied for the correct positioning of the reinforcing mesh and the VOC free curing product. This product was used to ensure a high quality concrete surface by preventing rapid water evaporation and the formation of cracks. As a water based product, it ensures sustainable concrete which will avoid future additional costs.