WeatherMix®
Cold Weather Concrete

Holcim UK’s Advanced Cold-Weather Concrete for Uninterrupted Winter Construction

WeatherMix® is a high-performance ready-mixed concrete system specifically engineered to extend the construction season into the harshest winter months. Developed by Holcim UK, it allows for the safe placement of concrete in ambient temperatures as low as zero degrees, effectively eliminating the costly downtime typically associated with cold weather. By accelerating setting times and promoting high-early strength development, WeatherMix® ensures that slabs can be finished earlier and projects stay on track, regardless of the frost. It is a chloride-free solution, making it safe for reinforced structures and providing contractors with a reliable, risk-free way to maintain productivity throughout the winter.

Why WeatherMix®

WeatherMix® is the essential choice for contractors who cannot afford to let the British winter dictate their project timelines. Its unique formulation provides superior workability with reduced segregation and bleeding, even in low temperatures. By allowing the concrete to achieve sufficient strength quickly to resist freeze-thaw damage, it protects the long-term durability of the structure from the moment it is cast.

Unlike traditional accelerators that can damage steel, WeatherMix® is entirely safe for all reinforced and cast systems. It meets the rigorous performance requirements of BS EN 206, BS 8500, and BS EN 13670, providing a trusted, compliant solution. With WeatherMix®, you aren't just buying concrete; you are buying the certainty that your construction programme will continue regardless of the forecast.