| abstract |
The present invention relates to an activator for cement, in particular for Portland composite and composite cement, binders containing the activator and a method for increasing the early strength of construction materials by adding the activator, wherein the activator comprises a hydraulically reactive superfine component having a Blaine fineness of at least 10,000 cm 2 /g, containing cement clinker, calcium sulphate and limestone, a calcium sulphate, an alkali sulphate / alkali sulphite and a complexing agent from the group of alkanolamines. |