France-based Hoffmann Green Cement Technologies has launched H-CLAY, a new technology designed to enhance the use of clay in the production of its zero per cent clinker cements.
The process enables clay to be transformed into a cementitious co-product without the need for conventional calcination or flash-calcination, avoiding the associated energy consumption and CO2 emissions.
According to Hoffmann Green, H-CLAY can utilise a wide range of clay types and allows the material to perform a role similar to slag in clinker-free cement formulations.
The company said the technology forms part of its innovation strategy and will support the development of a new generation of low-carbon cements for structural concrete applications.
Hoffmann Green added that H-CLAY broadens the range of raw materials available for its cement products while combining technical performance, durability and a reduced environmental footprint.
