Mapei Takes on the Challenge of Low-Clinker Cements for Carbon Neutrality

Mapei is innovating in the cement industry with low-clinker cements, aiming to significantly reduce CO2 emissions and contribute to achieving carbon neutrality by 2050.

Mapei Takes on the Challenge of Low-Clinker Cements for Carbon Neutrality

The cement industry, responsible for approximately 8% of global CO2 emissions, is on a transformative path to achieve carbon neutrality by 2050. Mapei, a leader in the construction materials sector, is at the forefront of this change, focusing on reducing the clinker content in cement. This approach is deemed the most effective short-term strategy to lower emissions, with the industry aiming to reduce the average clinker-to-cement ratio from 0.75 to 0.65 in Europe.

The Environmental Impact of Traditional Cement Production
Traditional cement production is a significant source of global carbon dioxide emissions, primarily due to the decarbonation of limestone and the energy-intensive process required to produce clinker. For each ton of clinker produced, approximately 0.85 tons of CO2 are emitted into the atmosphere.

1. Air-jet granulometry of the CEM IV/A (P) cement reproduced with and without MA.P.E./C-C.

Mapei's Innovative Approach to Low-Clinker Cements
Mapei's efforts include optimizing cement chemical-physical characteristics and utilizing specific additives, which can achieve significant clinker reductions while maintaining cement performance. The introduction of European standards EN 197-5 and EN 197-6 further supports the use of composite and ternary cements with very low clinker content, including limestone-calcined clay-based cements and recycled concrete fines as supplementary cementitious materials.

2. Flow values of CEM IV/A (P) standard mortars

Challenges and Solutions in Low-Clinker Cement Production
However, low-clinker cements often face challenges such as higher water demand and reduced workability. To address these issues, Mapei has developed a new range of cement additives, MA.P.E./C-C, enhancing grindability, mechanical performance, and workability in both mortar and concrete applications.

3. Flow values of CEM IV/A (P) Concrete Equivalent Mortars (C.E.M.).

Mapei's initiative to develop low-clinker cements and innovative additives like MA.P.E./C-C represents a significant step towards reducing the cement industry's carbon footprint. By focusing on sustainable production methods and materials, Mapei is contributing to the global effort to achieve carbon neutrality by 2050, paving the way for a greener future in construction.

Source: Mapei