Features of Structure Formation of a Geo-polymeric Binding System on the Basis of Perlite with the Use of Different Types of Alkali Activators

In the framework of this work, features of the structure formation of the geo-polymeric binding system when aluminosilicate raw – perlite – is activated with different grinding aggregates and alkaline components, providing a high pHvalue of a medium of mixing are studied. The most effective grinding equipment for perlite is selected. The influence of the type of alkaline activator on the structure formation of a geo-polymeric binder and formation of its physical and mechanical properties is established. Features of hardening kinetics of the geopolymeric system with the use of different alkali components are determined. Efficiency of the use of NaOH as an alkaline activator in comparison with KOH (caustic potash) is confirmed that can be associated with more favorable conditions for polymerization of aluminosilicate gel with participation of Na+ ions than with larger K+ ions as well as an optimum combination of priority and intensity of chemical reactions in the alkalialuminosilicate system

N.I. KOZHUKHOVA¹ , Candidate of Sciences (Engineering),
R.V. CHIZHOV¹ , Engineer,
I.V. ZHERNOVSKY¹ , Candidate of Sciences (Geology and Mineralogy),
V.I. LOGANINA² , Doctor of Sciences (Engineering),
V.V. STROKOVA¹ , Doctor of Sciences (Engineering), (This email address is being protected from spambots. You need JavaScript enabled to view it.)

1 Belgorod State Technological University named after V.G. Shukhov (46 Kostyukov Street, 308012, Belgorod, Russian Federation)
2 Penza State University of Architecture and Civil Engineering (28 German Titov Street, 440028, Penza, Russian Federation)

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