Comparative interpretation of the effect of surfactants on grinding portland cement with high proportions of granulated blast furnace slag

The paper brings information on grinding cement with high proportions of blast furnace slag in the presence of surfactants employed as grinding aids. The surfactants which are organic compounds belonging to the ethanol amine group differ by the chain length. The paper presents the results regarding the evolution of the specific surface area of the cement ground with 20%, 60%, and 80% granulated blast furnace slag at various grinding times depending on the type and ratio of surfactant. The paper provides results regarding also the effect of the surfactant on the grindability of the cement.