Aggregate Industries UK, who will set up a concrete plant on the Olympic Park to supply contractors, was selected partly due to its emphasis on sustainability.

ODA Chief Executive David Higgins said: "This is a key contract for the London 2012 project and will help ensure consistency of supply and stability in price for contractors working on the Olympic Park site.

"The construction of the Park and venues will need a huge amount of concrete, both in terms of volume and weight, so this will also be key to meeting our sustainability aspirations. Aggregate Industries demonstrated a clear commitment to meeting and exceeding targets, including using recycled materials and transportation by rail."

The company will also build a batching plant and have responsibility for the site-wide delivery, off-loading and distribution of concrete to contractors. This will dramatically reduce the number of lorries delivering to the site.

The ODA has also completed the first of the network of temporary roads which will be used for site traffic during the construction period and will help minimise the impact on the local roads around the site.

This first road has been built next to the Olympic Stadium site and as part of the ODA’s commitment to minimising waste, crushed rubble from other parts of the site has been recycled to construct the new road.