STUDY OF INFLUENCE COMPLEX ADDITIVES ON THE MOBILITY OF CONCRETE MIXTURES WITH HIGHLY FILLED SLAG PORTLAND CEMENT

Abstract

The data on the effect of additives on the complex organic-mobility concrete mixture, depending on the content of the slag component in cement. It’s shown that the most appropriate is the use of organo-mineral complex CentrilitFumeSX. Introduction of the complex to the concrete mix provides OK 21.7 cm when the content of GBF in an amount of 56% by weight of the cement, at a flow rate of cement in an amount of 360 kg/m³ W/C = 0.51. By increasing, the amount of GBF slag Portland cement composition from 56 to 70% of the mobility of the concrete mixture can be adjusted by increasing the flow rate of binder from 420 to 470 kg/m³ and the values of W/C of 0.51 to 0.78.