Why doesn’t VDT Cast Stone need Air Entrainment Additives?
In many project specifications today, air entrainment is specified for Cast Stone mixtures when it is only required for units manufactured from wet-cast slump concrete. It is not necessary to add air entrainment additives to units manufactured from zero slump mixes. Accordingly, ASTM C 1364-02 Standard Specification for Architectural Cast Stone only requires mixtures to contain air entrainment additives for units manufactured from slump concrete mixes. For more information please refer to Cast Stone Institute Technical Bulletin # 50.
