
MECHANOSYNTHESIS OF NANOSIZED SILICA FOR OBTAINING A BINDER BASED ON SODIUM POLYSILICATE
(STEF92 Technology, 2017-06-20, Postgraduate Victor Danilov, of Chemical Sciences, Arkady Ayzenshtadt)
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The study solves actual modern problem for obtaining polysilicate solution (as a mineral component of clinkerless binder) based on low-quality siliceous raw materials. A mechanochemical synthesis method of sustainable colloidal silica sol (with a particle size of 5-25 nm) is proposed, as well as a grounded choice of grinding parameters is made. Influence of protolytic properties of liquid phase on dispersion speed, aggregate and sedimentation stability of the silica sol are studied. The obtained dependence of the ...

