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rdf:type
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Description
| - The process of alkali activation of fly ash and metakaolin is examined in the view of micromechanics. Elasticity is predicted via semi-analytical homogenization methods, using a combination of intrinsic elastic properties obtained from nanoindentation, evolving volume fractions and percolation theory. A new quantitative model for volume fraction is formulated, distinguishing the evolution of unreacted aluminosilicate material, solid gel particles of N-A-S-H gel, and open porosity, which is partially filled with the activator. The stiffening of N-A-S-H gel is modeled by increasing the fraction of solid gel particles. Their packing density and intrinsic elasticity differ in N-A-S-H gels synthesized from both activated materials. The low ability of N-A-S-H gel to bind water chemically explains the high porosity of Ca-deficient activated materials.
- The process of alkali activation of fly ash and metakaolin is examined in the view of micromechanics. Elasticity is predicted via semi-analytical homogenization methods, using a combination of intrinsic elastic properties obtained from nanoindentation, evolving volume fractions and percolation theory. A new quantitative model for volume fraction is formulated, distinguishing the evolution of unreacted aluminosilicate material, solid gel particles of N-A-S-H gel, and open porosity, which is partially filled with the activator. The stiffening of N-A-S-H gel is modeled by increasing the fraction of solid gel particles. Their packing density and intrinsic elasticity differ in N-A-S-H gels synthesized from both activated materials. The low ability of N-A-S-H gel to bind water chemically explains the high porosity of Ca-deficient activated materials. (en)
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Title
| - Micromechanical multiscale model for alkali activation of fly ash and metakaolin
- Micromechanical multiscale model for alkali activation of fly ash and metakaolin (en)
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skos:prefLabel
| - Micromechanical multiscale model for alkali activation of fly ash and metakaolin
- Micromechanical multiscale model for alkali activation of fly ash and metakaolin (en)
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skos:notation
| - RIV/68407700:21110/11:00180836!RIV12-GA0-21110___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA103/09/1748), P(GAP104/10/2344)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21110/11:00180836
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - alkali-activation; fly ash; metakaolin; micromechanics; nanoindentation; N-A-S-H gel (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Materials Science
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Hlaváček, Petr
- Kopecký, Lubomír
- Němeček, Jiří
- Škvára, F.
- Šulc, Rostislav
- Šmilauer, Vít
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1007/s10853-011-5601-x
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http://localhost/t...ganizacniJednotka
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