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Research on the influence of colloidal silica addition on water vapour permeability of paint coating

100%

Brachaczek W., Siemiński W.

Czasopismo Techniczne

In the paper the influence of colloidal silica addition with different amounts of organic resin in facade paints formulations on the change of water vapour permeability of hardened coatings was researched. The results were obtained by means of experiments. To quantify the ability of paint to diffuse water vapour, Sdfactor, defined as equivalent to the thickness of non-rotating air layer, was used. For the quantitative determination of the relationship between water vapour permeability and the share of analyzed components in the formulation of paint a statistical model based on multiple regression was applied. Statistical analysis of the results showed that the effect of changes in the amount of colloidal silica in the formulation of paint on Sd value is small, compared to organic resin share changes.

Effect of redispersible resins on the mechanical strenght and capillary rising of hardened cement mortars

81%

Brachaczek W., Liszka P., Fryc S., Dzida Ł.

Czasopismo Techniczne

This paper shows the results of impact that polymer additives with different chemical composition have on physical and mechanical properties of solidified mortar. During the research, modern polymer redispersed admixtures were used. An analysis of the changes was carried out using statistical methods and linear regression. It was found that the analyzed polymer admixtures affect the analyzed parameters with varying degrees of intensity.

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2 Czasopismo Techniczne

2 2015

2 Brachaczek W.

1 Dzida Ł.

1 Fryc S.

1 Liszka P.

1 Siemiński W.

Search results

Research on the influence of colloidal silica addition on water vapour permeability of paint coating

Effect of redispersible resins on the mechanical strenght and capillary rising of hardened cement mortars