Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00196840" target="_blank" >RIV/68407700:21110/12:00196840 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA)

Popis výsledku v původním jazyce

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 measurementstook 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

Název v anglickém jazyce

Modification of cemnet paste surface using nanofibers based on poly(vinyl-alcohol) (PVA)

Popis výsledku anglicky

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 measurementstook 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

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2012, 4TH INTERNATIONAL CONFERENCE

ISBN

978-80-87294-35-2

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

TANGER

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 10. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000333697100034