Cements and Additives for Producing High-Strength Concretes

On the basis of the analysis of the formation mechanism of the high-strength structure of cement stone which means the directed regulation of the phase composition and differential porosity, the efficiency of water-reducing admixtures for producing high-strength concretes has been determined. It is established that an alternative to cement of increased activity with the special chemical-mineralogical composition can be ordinary Portland cement of TSEM 1 type which is used in combination with high-active mineral additives and super-plasticizers or in combination with poly-component organic-mineral modifiers of MB type containing all ingredients required for achieving the high strength. Conclusions made on the basis of analysis that for producing concretes of grades up to B 120 materials traditional for building industry can be used made it possible in a short time to organize in Russia the mass production of high-strength concretes.

S.S. KAPRIELOV, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.V. SHEINFELD, Doctor of Sciences (Engineering),
V.G. DONDUKOV, Engineer NIIZHB named after A.A. Gvozdev, JSC Research Center of Construction (6, 2nd Institutskaya Street, 109428, Moscow, Russian Federation)

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