Abstract
The article deals with the results of the studies of the pore structure, strength properties, biocidal properties and frost resistance of the cement composition samples with the additives of a synthetic water repellent polyethylhydrosiloxane and a natural aminopolysaccharide 2-amino-2-deoxy-β-D-glucan – chitosan. It is shown that an application of the chitosan additive does not reduce strength characteristics of the cement compositions in comparison with a synthetic polymer additive on the basis of polyethylhydrosiloxane. An introduction of the chitosan into the cement compositions allows to reduce total pore volume and has a positive effect over the character of their distribution, and also increases frost resistance and biostability.
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