Preventing vibration and noise from tunnels to surface
Crossrail, currently the largest European infrastructure project, is a perfect example of where MagnaDense is the best fit in an area bound by many limitations. Running beneath central London, the project encountered many constraints including the restricted volume of the tunnel and the proximity of surrounding infrastructure, meaning space was limited.
The solution was the construction of a High Density Floating Track Slab (FTS), utilising MagnaDense concrete. Due to the limited available construction space the concrete, developed to include the heavy aggregate MagnaDense, was the most suitable option to prevent noise and vibration caused by the passing trains. The project also had to overcome many logistical challenges, especially with the pumping site being situated within the city centre.
The Crossrail project saw the world’s first installation of a High Density Floating Track Slab and set a world record for pumping high density concrete. As a result, LKAB Minerals and partners were nominated for four awards at the NCE Tunnelling Awards in 2017.
For more information about the project, or to hear about the technical details of this construction, you can listen to the Crossrail webinar recorded together with our partners.