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| rdf:type
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| Description
| - This work aims at description of inorganic foams based on alkali activated fly ash. The foam is produced from alkali activated fly ash paste by powder alumina which reacts with the alkalies from the activation solution. Hydrogen is released during this reaction and creates a closed-pore structure. The amount of liquid activation solution and powder alumina has been optimized considering proper pore distribution and prescribed bulk density of the foam. The viscosity of the initial mix was found as a crucial factor for the foaming process and for the stability of the fresh foam. Compressive strength, flexural strength, thermal conductivity and capacity and residual strength on matured specimens were measured and compared with traditional porous building materials. The fire-resistance of the fly ash foam was determined. Mass loss, volume change, compressive strength and elasticity was obtained. It was found that during the fire resistance test almost all mass loss occurres below 500°C. On the other hand the biggest volume change take place between 800°C and 1100°C which is related to sintering of the gel. A long term leaching test has been performed. It was shown, that even after 180 days of leaching only about 60% of pores is fulfilled with water and the foam can still float on water surface.
- This work aims at description of inorganic foams based on alkali activated fly ash. The foam is produced from alkali activated fly ash paste by powder alumina which reacts with the alkalies from the activation solution. Hydrogen is released during this reaction and creates a closed-pore structure. The amount of liquid activation solution and powder alumina has been optimized considering proper pore distribution and prescribed bulk density of the foam. The viscosity of the initial mix was found as a crucial factor for the foaming process and for the stability of the fresh foam. Compressive strength, flexural strength, thermal conductivity and capacity and residual strength on matured specimens were measured and compared with traditional porous building materials. The fire-resistance of the fly ash foam was determined. Mass loss, volume change, compressive strength and elasticity was obtained. It was found that during the fire resistance test almost all mass loss occurres below 500°C. On the other hand the biggest volume change take place between 800°C and 1100°C which is related to sintering of the gel. A long term leaching test has been performed. It was shown, that even after 180 days of leaching only about 60% of pores is fulfilled with water and the foam can still float on water surface. (en)
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| Title
| - Preparation and properties of alkali activated fly ash foam
- Preparation and properties of alkali activated fly ash foam (en)
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| skos:prefLabel
| - Preparation and properties of alkali activated fly ash foam
- Preparation and properties of alkali activated fly ash foam (en)
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| skos:notation
| - RIV/68407700:21110/14:00220748!RIV15-GA0-21110___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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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/68407700:21110/14:00220748
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Fly ash; Alkali activation; Inorganic foam (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Juniorstav 16.odborná konference doktorského studia
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Hlaváček, Petr
- Šmilauer, Vít
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Vysoké učení technické v Brně. Fakulta stavební
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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