Resistant to sulphates

Cement concrete can also be affected by sulphate-containing sewage  water and groundwater. This comparatively light attack happens relatively slowly. Sulphates react to components (C3A) of cement stone, during which process crystals are formed. The consequence of this is an expansion that leads to cracking and spalling. By using cement with a high sulphate resistance this kind of corrosion can be limited. In the case of Thio Material a reaction between sulphates and an elementary sulphur as a binding agent is impossible for their mutual incompatibility.