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| Description
| - The difference in size of nano- and macro-materials (or in their volume) is an obstacle for the application of nanofibers in civil engineering. The synergy of these scales can be utilized when macro-material surface is protected by nanofibers. The proposed experiment investigated the possibility of utilizing the nanofiber textile on cement-based materials. The surface of fresh cement paste was coated by Poly(vinyl-alcohol) (PVA) based nanofibers. Nanofiber textiles were laid in three different weights per unit area (namely 0.1, 5.0 and 10.0 g/m2). The weight loss due to water movement through the material surface was monitored for the first 28 days. Reference samples without nanofiber coating were monitored for comparison as well. All the measurements took place in a laboratory environment and it is obvious from the results that there is no influence of nanofibers on cement paste drying. The surface of samples was optically investigated after the first experiment and in case of higher nanofiber weights per unit area there was an observable shrinkage of the nanofiber coating. The images from electron microscope also confirmed the interaction between the cement paste and the nanofibers. Thicker nanofiber coatings (>10 g/m2) could be peeled off from the samples, unlike those having a smaller weight, being perfectly attached.
- The difference in size of nano- and macro-materials (or in their volume) is an obstacle for the application of nanofibers in civil engineering. The synergy of these scales can be utilized when macro-material surface is protected by nanofibers. The proposed experiment investigated the possibility of utilizing the nanofiber textile on cement-based materials. The surface of fresh cement paste was coated by Poly(vinyl-alcohol) (PVA) based nanofibers. Nanofiber textiles were laid in three different weights per unit area (namely 0.1, 5.0 and 10.0 g/m2). The weight loss due to water movement through the material surface was monitored for the first 28 days. Reference samples without nanofiber coating were monitored for comparison as well. All the measurements took place in a laboratory environment and it is obvious from the results that there is no influence of nanofibers on cement paste drying. The surface of samples was optically investigated after the first experiment and in case of higher nanofiber weights per unit area there was an observable shrinkage of the nanofiber coating. The images from electron microscope also confirmed the interaction between the cement paste and the nanofibers. Thicker nanofiber coatings (>10 g/m2) could be peeled off from the samples, unlike those having a smaller weight, being perfectly attached. (en)
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| Title
| - Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA)
- Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA) (en)
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| skos:prefLabel
| - Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA)
- Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA) (en)
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| skos:notation
| - RIV/68407700:21110/12:00196840!RIV13-MSM-21110___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21110/12:00196840
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Nanofiber; electro-spinning; cement paste; surface protection; coating (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Kopecký, Lubomír
- Tesárek, Pavel
- Mukařovský, Jan
- Ryparová, Pavla
- Nežerka, Václav
- Rácová, Zuzana
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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