Traditional concrete is a relatively cheap and easy-to-use building material. Sand, gravel and water are abundant as important raw materials for concrete. As such, they do not contribute to climate change, apart from a very small share due to extraction and transport.
Concrete is also produced using cement and this generates substantial CO2 emissions (approximately 9 percent of all CO2 emissions in the world; source: BetonInfra/CROW). It is mainly the production of cement (heating of lime) that causes this. The industry is therefore looking for alternatives to cement.
With the advent of alternative binders, such as geopolymers, the concrete industry has managed to shape the carbon dioxide reduction. The Netherlands is the leader in this field and uses the least standard Portland cement of all countries in the world, in percentage terms. It is mainly the use of mineral residual flows that contributes to the reduction of theCO2 load of concrete in this case.
With the Concrete Agreement, the Dutch concrete industry has committed itself to reducing CO2 emissions across the board, and the SQAPE technology amply fulfils this commitment. Whereas cement, as a component of traditional concrete, produces a carbon footprint of 80%, this is reduced by 50 to 85% through the use of alternative raw materials. This makes SQAPE the most sustainable option of its kind on the Dutch market. By applying SQAPE, you can completely replace the use of cement with much more sustainable products without compromising on quality.
The extremely low CO2 footprint of SQAPE Geopolymer products is shown in the table below. Depending on the application, the reduction in CO2 emissions can be up to 85% (compared to applications with Portland cement).