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Open AccessArticle

Attempts to Improve the Subsurface Properties of Horizontally-Formed Cementitious Composites Using Tin(II) Fluoride Nanoparticles

1
Faculty of Civil Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
2
Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(1), 83; https://doi.org/10.3390/coatings10010083
Received: 15 November 2019 / Revised: 16 January 2020 / Accepted: 17 January 2020 / Published: 19 January 2020
(This article belongs to the Special Issue Erosion of Nanostructured Coatings)
This article presents studies that were performed in order to improve the subsurface properties of horizontally-formed cementitious composites using tin(II) fluoride nanoparticles. The main aim of the study was to solve the problem of the decrease in subsurface properties caused by mortar bleeding and the segregation of the aggregate along the height of the overlay. The article also aims to highlight the patch grabbing difficulties that occur during the process of forming horizontally-formed cementitious composites. Four specimens were analyzed: one reference sample and three samples modified with the addition of 0.5, 1.0, and 1.5% of tin(II) fluoride nanoparticles in relation to the cement mass. To analyze the mechanical properties of the specimens, non-destructive (ultrasonic pulse velocity) and destructive tests (flexural tensile strength, compressive strength, abrasion resistance, pull-off strength) were performed. It was indicated that due to the addition of the tin(II) fluoride, it was possible to enhance the subsurface tensile strength and abrasion resistance of the tested cementitious composites. To confirm the obtained macroscopic results, the porosity of the subsurface was measured using SEM. It was also shown that the addition of the tin(II) fluoride nanoparticles did not reduce its flexural and compressive strength. The results show that horizontally-formed cementitious composites with the addition of 1.0% of tin(II) fluoride nanoparticles in relation to the cement mass obtained the most effective mechanical performance, especially with regard to subsurface properties. View Full-Text
Keywords: cement mortar; floor; overlay; tin(II) fluoride; nanoparticles; subsurface properties cement mortar; floor; overlay; tin(II) fluoride; nanoparticles; subsurface properties
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MDPI and ACS Style

Krzywiński, K.; Sadowski, Ł.; Szymanowski, J.; Żak, A.; Piechówka-Mielnik, M. Attempts to Improve the Subsurface Properties of Horizontally-Formed Cementitious Composites Using Tin(II) Fluoride Nanoparticles. Coatings 2020, 10, 83. https://doi.org/10.3390/coatings10010083

AMA Style

Krzywiński K, Sadowski Ł, Szymanowski J, Żak A, Piechówka-Mielnik M. Attempts to Improve the Subsurface Properties of Horizontally-Formed Cementitious Composites Using Tin(II) Fluoride Nanoparticles. Coatings. 2020; 10(1):83. https://doi.org/10.3390/coatings10010083

Chicago/Turabian Style

Krzywiński, Kamil; Sadowski, Łukasz; Szymanowski, Jacek; Żak, Andrzej; Piechówka-Mielnik, Magdalena. 2020. "Attempts to Improve the Subsurface Properties of Horizontally-Formed Cementitious Composites Using Tin(II) Fluoride Nanoparticles" Coatings 10, no. 1: 83. https://doi.org/10.3390/coatings10010083

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