METHOD FOR THE INCREASE OF WORKABILITY OF A BINDER COMPOSITION COMPRISING PORTLAND CEMENT, CALCINED CLAY, AND LIMESTONE

摘要

The present invention relates to a method for increasing the workability of a binder composition comprising calcined clay, limestone, and Portland cement. Said method comprises a step of adding an admixture comprising at least one PCE and at least one additive selected from the group consisting of sugar acids, sugars, sugar alcohols, and hydroxycarboxylic acids. The invention also relates to an admixture to be used in said method and hardenable compositions, especially concrete and mortar, obtainable by said method.