Cement Replacements

At Longcliffe, we produce ground calcium carbonate (GCC) which is increasingly being used as a cement replacement in concrete and pre-cast concrete products.

Longcliffe has traditionally supplied limestone aggregates and ballast for concrete and blinding applications, however, we have recently seen an increasing interest in fine fillers as a replacement for Portland cement, PFA and GGBS in many types of concreting applications.

Concrete

Using ground calcium carbonate as a component in concrete can improve the density of the mixture, the surface finish and the performance of the concrete in both its plastic and hardened states. Using limestone as a cement replacement results in a light-coloured concrete suitable for architectural applications. In addition, GCC can also help achieve improvements in environmental performance as it results in substantially lower CO₂ emissions compared to Portland cement.

Precast and Self-Compacting Concrete

Ground calcium carbonate is increasingly being used in applications such as precast concrete products, including block paving, paving slabs and roof tiles, as well as ready-mixed concrete and self-compacting concrete (SCC). The use of SCC technology within the UK has grown rapidly in recent years, particularly in precast concrete, making GCC a very desirable compound across the industry. Get in touch with us today to find out more about our calcium carbonates.