Influence of cement properties on new generation superplasticizers performance

In the paper are presented the results of investigation into the influence that specific surface Ssc, C3A, Na2Oe and SO3 content have in cement and the interaction of these factors on PC and PE superplasticizer performance. In order to obtain unequivocal relationships, laboratory—prepared cements were used. The composition and specific surface of those cements were changed strictly according to an assumed research plan, while other properties were kept constant. In order to make the achieved relationships as useful as possible for creating the workability of SCC and HPC, the research was conducted on mortars.

► Fifty seven cements with laboratory regulated properties were examined.
► Nature of influence of cement on rheology of superplasticized mixes was presented.
► Influence on PC and PE performance have in turn: C3A, Ssc, Na2Oe and its interaction.
► PC and PE performance decreases when Ssc, C3A, Na2Oe increases.
► Method of assessment of cement–superplasticizer compatibility was proposed.