The methods of measurement of the size of colloidal nanostructure elements in hydrated sodium silicate and of the decay of these sizes were discussed in the aspect of the used method of Photon Correlation Spectroscopy. Hydrated sodium silicate possessing different physical and chemical proprieties, obtained by different physicochemical methods, was investigated. The bases of the estimation of nanostructure in hydrated sodium silicate by application of the counted coefficients were described.
The obtained results of investigations enabled qualification of the influence of physicochemical factors on the nanostructure in the examined materials, defined by the size of small colloidal particles and characterization of the decay of this size in nanoparticle clusters.
The performed investigations of the cohesion-adhesion values of bonds in the system of "sand grain - hydrated sodium silicate - ester" show that it is advisable to modify the nanostructure in hydrated sodium silicate in the aspect of improvement of the binding proprieties of this material.
Assist.Prof. Dr Sc. Eng Andrzej Balinski
Foundry Research Institute, 30-418 Krakow,Zakopianska Str. 73, Poland, ph.+48(12)2618219, e-mail [email protected]

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