LYTAG is a lightweight concrete aggregate that is made from pulverised fuel ash – a waste material created when coal-fired power stations produce electricity. It weighs about 25 per cent less than standard precast concrete and offers many benefits in terms of pouring, producing and transporting concrete. LYTAG lightweight concrete is usually only offered by traditional drum-mixer companies, but, thanks to Rapid Readymix’s state-of-the-art mixers and specialist storage facilities, we are one of the only volumetric concrete mixer fleets in London, Surrey and the South East to supply high-quality lightweight concrete using this lightweight aggregate!
Some of London’s biggest concrete construction projects have been completed using LYTAG walls and slabs. The floors in the Shard, for example, were made using lightweight LYTAG so as to reduce their ‘dead load’ by 11 per cent. The historic Kingston Bridge was also widened and strengthened using LYTAG concrete to lessen the weight on the bridge’s arches. Other well-known structures that have used LYTAG concrete include Westminster Bridge, Heathrow Airport, the Natural History Museum and London City Hall.
Some projects will choose LYTAG because they need a lightweight concrete solution, while others will use it for its structural performance (it can achieve a compressive strength of up to 65N).