Influence of different surfactants on hydrated lime pastes modified with CNTs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367783" target="_blank" >RIV/68407700:21110/23:00367783 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0162199" target="_blank" >https://doi.org/10.1063/5.0162199</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0162199" target="_blank" >10.1063/5.0162199</a>
Alternative languages
Result language
angličtina
Original language name
Influence of different surfactants on hydrated lime pastes modified with CNTs
Original language description
Nanomaterials such as graphene or carbon nanotubes (CNTs) have the potential to improve mechanical behavior of lime-based renders and plasters, and make those materials suitable for restoration works in terms of strength. However, the performance of nanoparticles is conditioned by their dispersion within the material matrix. This research focuses on the ways to ensure homogenous distribution of nanomaterials; the methods of dispersion are tested on hydrated lime pastes containing CNTs. In the experimental work, mixtures were prepared using physical dispersion in the form of a two-step homogenization method combined with the use of surfactants, namely Tween 80 and Triton X 100, and superplasticizer Dynamon SX. For the hardened samples, basic physical and mechanical properties were determined. the results showed only a slight improvement of mechanical properties caused by the use of CNTs and even a decrease in those properties in case of the mixtures containing surfactants, as the surfactants produced foam while mixing and consequently caused an increase in porosity. This indicates that in case of highly porous materials such as hydrated lime pastes, the negative effect of growing porosity on material strength outweighs the reinforcing effect of CNTs. Therefore, used nanomaterial dispersion methods should avoid producing additional pores.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA20-01866S" target="_blank" >GA20-01866S: High-performance composites containing layered nanomaterials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
International Conference of Numerical Analysis and Applied Mathematics ICNAAM 2021
ISBN
978-0-7354-4589-5
ISSN
0094-243X
e-ISSN
1551-7616
Number of pages
4
Pages from-to
"130006-1"-"130006-4"
Publisher name
AIP Publishing
Place of publication
Melville, NY
Event location
Rodos
Event date
Sep 20, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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