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CC deployed across channel width
Lining culvert with CC8 TM
Applying Sikaflex beading to joints 6” steel anchor nails with 1” hex head washers Grout was chosen in areas that may be prone to heavier flows and related scouring, and used to seal edges of the material to ensure ingress would be avoided. In an effort to minimise the possibility of potential debris dams, grouting also eliminated the lip that was caused from the overlaps of CC layers. The fibre reinforcement inherent in CC gives a durability and design life well above competitor geomembrane products, whilst the integral PVC backing ensures minimal water loss in the carrier channel.The CC will moss over in time, blending in with the surrounding environment but will prevent root growing vegetation, reducing the need for maintenance of the channel. A swale was formed on the north ridge of the ditch at a nearby tree line to collect surface rainfall from an adjacent hillside, using the ability of CC to closely follow the profile of existing slopes and negotiate tight bends and curvatures. CC has a working time of approximately two hours from hydration, meaning that work can continue in very wet conditions. This can reduce programme disruption typically caused by bad weather when using traditional concrete solutions. Plastic sheeting was used to protect the CC during setting when temperatures dropped to below -5ºC.
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