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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F10%3A00172766%21RIV11-GA0-21110___
rdf:type
n13:Vysledek skos:Concept
dcterms: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 match an 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 densit 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 match an 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 densit
dcterms:title
Application of Micromechanics on Alkali-activated Materials Application of Micromechanics on Alkali-activated Materials
skos:prefLabel
Application of Micromechanics on Alkali-activated Materials Application of Micromechanics on Alkali-activated Materials
skos:notation
RIV/68407700:21110/10:00172766!RIV11-GA0-21110___
n3:aktivita
n18:P
n3:aktivity
P(GA103/08/1639)
n3:cisloPeriodika
1
n3:dodaniDat
n10:2011
n3:domaciTvurceVysledku
n7:7575505 n7:3161471 n7:3008142
n3:druhVysledku
n16:J
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
247454
n3:idVysledku
RIV/68407700:21110/10:00172766
n3:jazykVysledku
n17:eng
n3:klicovaSlova
geopolymer, fly ash, alkali-activation, models
n3:klicoveSlovo
n5:geopolymer n5:models n5:alkali-activation n5:fly%20ash
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[04ABD3AE5C09]
n3:nazevZdroje
Advances in Science and Technology
n3:obor
n8:JH
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n12:GA103%2F08%2F1639
n3:rokUplatneniVysledku
n10:2010
n3:svazekPeriodika
69
n3:tvurceVysledku
Šmilauer, Vít Hlaváček, Petr Škvára, František Kopecký, Lubomír Němeček, Jiří
s:issn
1662-0356
s:numberOfPages
11
n11:organizacniJednotka
21110