RAPID HARDENING BINDER MIXTURE AND METHOD FOR CONTROLLING THE EARLY STRENGTH OF BINDER MIXTURE

摘要

Binder mixture comprises a sulfate-free hydraulic binder component and a component for accelerating the hardening process. Sodium carbonate and potassium carbonate are added in required ratios according to the use to control the early strength and the development of the early strength. An Independent claim is also included for a process for the controlling the early strength and the development of the early strength of a binder mixture. Preferred Features: The mixture contains 0.1-10 wt.% alkali carbonate and 25-99.7 wt.% Portland cement clinker. Ground rock and/or highly dispersed silicic acid is used as filler.