Application of Micromechanics on Alkali-activated Materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00171723" target="_blank" >RIV/68407700:21110/10:00171723 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Application of Micromechanics on Alkali-activated Materials
Original language description
Research of alkali-activated materials has been a traditional domain of chemists. This paper exploits contribution of micromechanics to the subject. A new model for volumetric evolution of chemical phases is formulated. The first homogenization level identifies elasticity on the scale of N-A-S-H gel. Nanoindentation sensing technique yielded the intrinsic Young's modulus of N-A-S-H gel as ~18 GPa, which was further downscaled to the solid gel particles. Percolation theory had to be introduced to matchan early-age elasticity. The second homogenization level takes into account an unreacted fly ash. Homogenization models match well the experimental elasticity and demonstrate stiffening of N-A-S-H gel, induced by increasing packing density of the solid gel particles. The percolation model explains a long setting time of alkali-activated materials.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JI - Composite materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA103%2F08%2F1639" target="_blank" >GA103/08/1639: Microstructure of inorganic aluminosilicate polymers</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 12th International Ceramics Congress - CIMTEC 2010
ISBN
978-3-908158-61-5
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
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Publisher name
TRANS TECH PUBLICATIONS LTD
Place of publication
ZURICH
Event location
Montecatini Terme
Event date
Jun 6, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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