Innovative Graphene-Enhanced Low-Carbon Concrete Project Demonstrates Commercial Viability

A collaborative project involving GEIC, CEMEX UK, Galliford Try, Sika, and Northumbrian Water has successfully demonstrated the use of a novel, low-carbon concrete enhanced with graphene. This innovative material, named CoMLaG (Combining Micronized Limestone and Graphene), was developed and tested at the GEIC and CEMEX’s National Technical Centre. It incorporates a ternary cement mix that replaces part of the traditional clinker with GGBS and micronized limestone. To offset potential strength reductions from clinker reduction, a graphene-based additive formulated at GEIC was added to boost structural performance. After comprehensive laboratory testing, the team produced the concrete at a batch plant in Northeast England, using locally available aggregates and raw materials. A real-world application was carried out with a slab pour in April 2025, monitored in real time using Cemex’s i-Con maturity system to track curing conditions and strength development. Results from slump tests and compressive strength measurements aligned with lab data, with the graphene-enhanced mix reaching a 28-day strength of 78.3 N/mm²—close to the 82.6 N/mm² achieved by conventional CEM I cement. Although ...