Mixture - cement setting agent based on cement clinker

摘要

The mixture for controlling the setting time of cemens based on clinker consists of the particle material of latently hydraulically active substances containing 0.3% to 60% by mass CaO, 0.5% to 65% by mass SiO2, 3% to 34% by mass Al2O3, 2% to 19% by mass Fe2O3, 0.5% to 10% by mass MgO, 0.5% to 36% by mass C, the material also contains TiO2, SO3, P2O5, K2O, Na2O in the amount from 0.04% to 11% by mass, the size of the particles is 1 µm to 450 µm, with more than 50% by mass of the particles larger than 40 µm. In the cement based on cement clinker, the amount of the mixture used for controlling the set time is 0.01 to 50% by mass of the final cement mixture, where the cements based on cement clinker may contain constituents such as limestone and/or blast furnace slag and/or fly ash and/or silica fumei and/or natural and/or artificial pozzolanic materials and/or burnt shale.