Geogrid-powered stability for Thurrock energy

Naue’s geosynthetic solution

Naue Combigrid^® was laid directly on the subgrade, offering separation, filtration, stabilisation and reinforcement. Where higher strength was needed, additional layers of Naue Secugrid^® were used between aggregates. In total, over 70,000 m² of Combigrid^® and nearly 50,000 m² of Secugrid^® were supplied. Lightweight and easy to handle, the products offer fast installation with simple overlaps and trimming. The grid aperture interlocks with granular fill, and friction between fill and the textured Secugrid^® bars ensures excellent bond and structural integrity.

To manage stormwater, a surface water attenuation pond was built. Naue’s Bentofix^® geosynthetic clay liner (GCL) was selected for sealing. Bentofix^® is a needle-punched composite with a high-swelling sodium bentonite core between two geotextile layers. It is placed directly on the prepared base, and its self-sealing edges – impregnated with dry bentonite – create tight, secure overlaps. The sodium bentonite forms an immediate hydraulic barrier when in contact with water. For irregular shapes, Bentofix^® is also available with fully bentonite-impregnated cover geotextile to allow self-sealing overlaps even on cut-to-size panels to avoid manual reworking.

Around 7,000 m² of Bentofix^® was installed. Compared to traditional thick clay linings, Bentofix^® requires far fewer deliveries and generates cost savings.

Project goals achieved

In summary, Jake White stated: “Naue’s geosynthetics helped the project meet its construction goals.”