The Use of Reactive Aggregates for Producing Concretes Resistant to Aggressive Media

The necessity to study fillers, which have the reactive ability to alkalis of cement stone, is caused by the absence, in some regions, of inert materials which meet requirements of normative-technical documentation for producing concretes resistant to aggressive media. An analysis of available literature data shows the need for assessment of the possibility to use local inert materials in the course of construction of the Rogun HPS in Tajikistan. To prevent the reactive capacity of inert materials of Rogun deposits and to use them as fillers for concrete, fly ash and micro-silica were considered as active mineral additives. The composition of concrete in which 15% of cement was replaced by fly ash and 5% – by micro-silica was selected; this significantly reduced the reactive capacity of inert materials and confirmed the possibility of their efficient application.

K.B. SAFAROV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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