Effect of Pyrocatechin on the Properties of Cement-Free Refractory Concrete Mixtures Based on Silica-Containing Colloidal Binders

It is shown that the pyrocatechin (1, 2-dihydrohybezene) in an amount of 0.005 – 0.010 wt.% solid components has a pronounced plasticizing effect on mixtures of polyfraction corundum filler and colloidal SiO 2 -solution binder, stabilized with ammonia ions, intended for preparing cement-free refract...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2019-01, Vol.59 (5), p.545-548
Main Authors: Voronkov, M. E., Brykov, A. S., Nekrasova, O. K., Pavlov, S. S.
Format: Article
Language:English
Subjects:
Aluminum compounds
Aluminum oxide
Ammonia
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Concretes
Corundum
Glass
Materials Science
Moisture content
Natural Materials
Polymers
Refractory materials
Silicon dioxide
Technical institutes
Water-soluble polymers
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Summary:It is shown that the pyrocatechin (1, 2-dihydrohybezene) in an amount of 0.005 – 0.010 wt.% solid components has a pronounced plasticizing effect on mixtures of polyfraction corundum filler and colloidal SiO 2 -solution binder, stabilized with ammonia ions, intended for preparing cement-free refractory concrete. Self-consolidating refractory compositions are prepared with minimum water content.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-019-00268-3