Imerys silica flour has a high silica content, around 99%. And it is also characterised by its fine particle size distribution.
Application for Silica Flour
At elevated temperatures changes in the hydration phases produced by the cement-water reaction can cause a strength retrogression. The addition of silica flour can adjust the phase transformations and inhibit this strength reduction and the associated increase in permeability that occurs in set Portland cement.
Imerys Silica Flour portfolio
Imerys silica is manufactured in Spain (see our map of assets)