Specialist contractor Keltbray has used zero-cement concrete for a permanent works pile, in what it claims is a UK first.
Working for Taylor Wimpey on its new housing development in Mount Pleasant, London, Keltbray is installing a secant wall and bearing piles for main contractor Bouygues using cement-free concrete Cemfree.
Cemfree, developed and manufactured in the UK by the DB Group, is an ultra-low carbon alternative to traditional cement concrete. Its manufacturer claims it has all of the structural characteristics of traditional concrete but is more sustainable as it is more resistant to chloride ingress and requires fewer construction joints and less crack-control steel when used within key structural elements.
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