CEMEX UK is providing over 40,000 tonnes of a complicated lining spray Concrete for the construction of the Thames Tideway Tunnel, the biggest infrastructure project ever undertaken by the UK water industry.

The Tunnel is being built to upgrade London’s sewer system to cope with its growing population. Currently, London relies on a 150-year-old sewer system built for a population less than half its current size. As a result, during periods of heavy rain, the current infrastructure can become overwhelmed.

CEMEX’s primary lining spray Concrete is being used for the shafts and launch tunnels in the central part of the project – a 12.5km stretch of the tunnel moving under central London.

Michael May, Sales Manager for Mortars Europe, commented: “This has been a great project to be involved in, significant numbers of multi operating locations across London all with individual logistical and operational issues and challenges to overcome. This project has also been exceptionally technically challenging with the mix design once again proving how flexible and forgiving it is even when pushed to its absolute performance limits. This is now the third major project completed in London with this particular design and its now becoming somewhat of an industry standard often being asked for by its name “The Bank Mix”.