What is Lytag®?
Lytag® lightweight aggregate was first manufactured in 1958 following a research project between John Laing Ltd and the Building Research Establishment (BRE) to develop a lightweight aggregate from power station fly ash.
Since then over 16 million tonnes have been sold worldwide and 2013 saw the completion of a multimillion pound factory at Drax power station near York.
Lytag® is made from the fly ash generated by coal fired power stations. Our proprietary technology transforms the fly ash into small round pellets, which are then heated to 1,100°C. This creates a very hard pellet with a honeycombed internal structure of interconnecting spaces. These hard pellets can then be used as a superior, consistent, lightweight aggregate which is up to 50% lighter than natural aggregate.
Uses of Lytag
Lytag is used in various construction applications such as concrete, fill, precast, drainage and screed.
Lytag is an Aggregate Industries business and benefit from the resources and capabilities of a highly skilled research and development team, and the financial and global business strength of its holding company Holcim, one of the world’s largest cement producers.