Improving the Efficiency of Cement Binders with the Use of Silica-Containing Modifier

The influence of a mixture of micro-disperse silicate component on the activity of cement is investigated. The micro-disperse silicate component is a waste of aluminum production and consists of a highly active silicate gel and finely dispersed quartz. A method for its introduction into the raw mixture of the binder is proposed. Optimization of the amount, the features of the introduction of the silicate component in the cement system and the conditions of hardening of the binder make it possible to regulate its activity, contribute to the intensification of hydration of clinker minerals, as well as bind the Portlandite in an additional amount of calcium hydro-silicates C–S–H, which in turn leads to the hardening of the structure of cement stone. In the complex, the use of the silicate component with superplasticizers makes it to increase the strength of concrete by 40–50%.

A.A. GUVALOV¹, Doctor of Sciences (Engineering) (abbas.guvalov@ akkord.az)
T.V. KUZNETSOVA², Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
S.I. ABBASOVA¹, Candidate of Sciences (Engineering)

¹ Azerbaijan University of Architecture and Construction (AZ 1073, 5, Ayna Sultanova Street, Baku, Azerbaijan Republic)
² D. Mendeleev University of Chemical Technology of Russia (9, Miusskaya Square, Moscow, 125047, Russian Federation)

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