Calight 70

CALIGHT 70 is a calcium aluminate cement with a minimum content of 70% Al₂O₃, produced on a normal rotary kiln using pure bauxite and limestone.

The cement is not only used by the refractory industry, but because of its light color and high reactivity, it finds more and more applications in the building chemistry industry. In this case, it is most often used to accelerate the set of white Portland cement by adding a certain percentage of CALIGHT 70. At the same time, it increases the early strength.

The amount of free lime produced when hydrating is negligible, giving it better resistance to acids and sulfate attack. To establish a certain amount of expansion, to eliminate or reduce shrinkage, an amount of alpha-hemihydrate or anhydrite can be added. Experience in the past teaches us to be careful when using calcium aluminate cement in outdoor applications.