Effect of Inorganic SiO2 Nanofibers in High Strength Cementitious Composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU133812" target="_blank" >RIV/00216305:26110/19:PU133812 - isvavai.cz</a>
Result on the web
<a href="https://www.matec-conferences.org/articles/matecconf/abs/2019/27/matecconf_icbmm2018_01009/matecconf_icbmm2018_01009.html" target="_blank" >https://www.matec-conferences.org/articles/matecconf/abs/2019/27/matecconf_icbmm2018_01009/matecconf_icbmm2018_01009.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/201927801009" target="_blank" >10.1051/matecconf/201927801009</a>

Result language
angličtina
Original language name
Effect of Inorganic SiO2 Nanofibers in High Strength Cementitious Composites
Original language description
The paper deals with the verification of the effect of the addition of inorganic SiO2 nanofibers to cement composites. In the first stage, a stable suspension of SiO2 nanofibers was prepared in an aqueous medium. It is important to distribute nanofibers so that the nanofibers do not appear in the form of clumps and at the same time do not get damaged during the dispersion process. The ultrasonification process was used for dispersion. The dispersed suspension of SiO2 nanofibers and water was dosed together with the superplasticizing admixtures into the dry components of the cement composite and the components were homogenized. The properties of the cement composite with SiO2 nanofibers have been tested – compressive strength, flexural strength, density. Composites with the addition of SiO2 nanofibers at a dose of 0.008 % by weight of cement exhibited an increased compressive strength of up to 33 % and a 19 % greater flexural strength at doses of 0.016 and 0.032 % of cement weight than the reference sample without nanofibers. The presence of SiO2 nanofibers in the composite was monitored by scanning electron microscopy (SEM).
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)

Project
<a href="/en/project/FV20019" target="_blank" >FV20019: Optimization of fine graded particles in concrete to obtain a High Performance Concretes</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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