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Open AccessArticle

Effect of Polysiloxanes on Roughness and Durability of Basalt Fibres–Reinforced Cement Mortar

1
Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland
2
Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland
3
Faculty of Economics and Engineering, Pope John Paul II State School of Higher Education in Biała Podlaska, Sidorska 95/97, 21-500 Biała Podlaska, Poland
*
Author to whom correspondence should be addressed.
Polymers 2018, 10(4), 420; https://doi.org/10.3390/polym10040420
Received: 15 March 2018 / Revised: 6 April 2018 / Accepted: 7 April 2018 / Published: 9 April 2018
(This article belongs to the Special Issue Siloxane-Based Polymers)
The influence of roughness and the way it affects the adhesion properties and surface free energy (SFE) of polysiloxanes hydrophobised basalt fibres–reinforced cement mortars were determined in this article. The physical properties of mortars were investigated in the experimental part, which also explored the impact of hydrophobisation and basalt fibres (BF) addition on SFE, frost resistance, contact angle (CA), and roughness. A device capable of calculating all parameters was used to indicate the surface roughness and 3D topography. Prior to and after conducting surface and weight hydrophobisation, the contact angle of mortars was specified. Subsequently, it was used for carrying out SFE calculation by means of Neumann’s method, enabling us to characterize the adhesion properties and wettability of mortars. The research indicated that the surface roughness was substantially decreased, in turn raising the frost resistance. The corrosion resistance drops when the surface roughness, water absorption, and number of fibres in the mortar increase. The SEM images presenting the structure of polysiloxane coating and mortars were provided. View Full-Text
Keywords: polysiloxanes; mortar; basalt fibre; roughness; surface free energy polysiloxanes; mortar; basalt fibre; roughness; surface free energy
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Barnat-Hunek, D.; Łagód, G.; Fic, S.; Jarosz-Hadam, M. Effect of Polysiloxanes on Roughness and Durability of Basalt Fibres–Reinforced Cement Mortar. Polymers 2018, 10, 420.

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