Effect of carbon nanotubes on the mechanical fracture properties of fly ash geopolymer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU120364" target="_blank" >RIV/00216305:26110/16:PU120364 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.proeng.2016.07.360" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2016.07.360</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2016.07.360" target="_blank" >10.1016/j.proeng.2016.07.360</a>
Alternative languages
Result language
angličtina
Original language name
Effect of carbon nanotubes on the mechanical fracture properties of fly ash geopolymer
Original language description
Fly ash geopolymer is amorphous aluminosilicate material which is considered as alternative to Portland cement concrete. One of the limiting factors of its utilization is an increased shrinkage and related deterioration of fracture properties. This paper reports on a study of the application of multi-walled carbon nanotubes (MWCNTs) to improve the fracture properties of fly ash geopolymer. The amount of MWCNTs added varied in the range of 0.05–0.2% of the mass of fly ash. Mechanical fracture properties were determined via evaluation of three-point bending fracture tests. Specimen response during fracture tests was also monitored by means of acoustic emission, and this method was also used for the determination of cracking tendency occurring during the hardening process. Results show that the addition of MWCNTs increases the elastic modulus and compressive strength of fly ash geopolymer. However, basic fracture parameters (fracture toughness, fracture energy) firstly decreased with very small addition of MWCNTs and were regained or slightly exceeded the reference values with higher amount of MWCNTs.
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
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
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 on Ecology and new Building materials and products, ICEBMP 2016
ISBN
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ISSN
1877-7058
e-ISSN
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Number of pages
8
Pages from-to
321-328
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Černá Hora
Event date
May 31, 2016
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000387482800045