Reducing the clinker-to-cement ratio
Reducing the clinker-to-cement ratio is key to cutting the carbon impact of cement. Our ambition is to reach an average clinker factor of 68% globally by 2030, by repurposing byproducts from other industries and construction and demolition waste, investing in calcined clay facilities as well as developing novel cements with new binders. Leading the way in green construction, our operations in Mexico, Ecuador and Colombia have gained ways to drive down the clinker rate further while ramping up their circular approach.
A great example is the development of the Cemento Maestro, a specialty binder designed to increase the workability, quality of finishing and durability of masonry works. The product was launched in Mexico in 2014 and earlier this year replicated in Ecuador and Colombia. Holcim Maestro has a low clinker factor of 35 % and therefore a low CO2 footprint compared to other alternatives. In addition Holcim Maestro’s higher strength per square meter generates savings in the material used and its high workability makes it easier to apply, reducing the effort in the labor used. The efforts to launch and replicate this range of “low carbon cements” is underpinned by strong ties with the Group’s innovation center in Lyon paired with a powerful local R&D network of scientists and labs.
Where to find it
Cement Maestro is available in Colombia, Ecuador and Mexico. With other brands, we offer green masonry cements also in Argentina (Hercal), France (Multibat), Morocco (Perfecto), Philippines (Wallright) and South Africa (Durabuild).