Cement binder composition, super ultra high strength precast concrete composition and method for producing super ultra high strength precast concrete goods using the same

摘要

The present invention relates to a cement binder composition that can exhibit a compressive strength of 250 ~ 350MPa and a method for producing a concrete composition and precast concrete products using the same.;Cement binder composition according to the present invention, 45 to 55% by weight of ordinary portland cement containing coarse cement; Silica fume 15-25% by weight; Blast furnace slag fine powder 15-25 wt%; And, 2-8 wt% of anhydrous gypsum; wherein the cement binder composition is composed of 3-8 wt% of SO ₃ in the cement binder composition. Precast concrete product manufacturing method according to the present invention using the cement binder composition described above to perform the process of compaction molding, atmospheric steam curing, heating curing in order to concrete mixed with a water binder ratio of 11 to 15% by weight It is characterized by.;Ultra high strength, Atmospheric steam curing, Heating curing, Coarse cement