Engineering properties of alkali-activated composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00229843" target="_blank" >RIV/68407700:21110/15:00229843 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/15:00229844
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Engineering properties of alkali-activated composites
Original language description
The talk will be mainly focused on the alkali activated fly ash composites. A quantitative model of phase evolution during fly ash activation is introduced together with a descriptive micromechanical model aiming at elasticity evolution during N-A-S-H gel hardening. The elasticity of alkali activated composites is predicted via multiscale homogenization using intrinsic elastic properties of particular phases and evolving volume fractions of the phases. The Young?s modulus is calculated and validated foralkali activated fly ash paste and concrete. Since a solution of NaOH is usually used as an affordable alkali activator, the role of sodium cations in the N-A-S-H gel is examined. Leaching experiments proved almost full leachability of sodium from the N-A-S-H gel, which points to a weak alkali bond of the sodium cations in the gel.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JI - Composite materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/EE2.3.30.0034" target="_blank" >EE2.3.30.0034: Support of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů