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| Description
| - In this chapter, two formulations of geopolymer matrices, abbreviated as zM1Z and zM2Z, based on thermal silica with fine size-particle and main molar ratio Si/Al 10, potassium hydroxide solution and further minor admixtures for improving application features, are created and synthesized; The pure geopolymers, with the density around 2.2 Mg m-3 and rather homogeneous distribution of all main elements, present very good mechanical properties, almost at the top of the results of previous studies. The properties of six geopolymer composites based on M1, M2 and approximately 45, 53 or 60 vol.% of unidirectional carbon fibers HTS 5631 1600tex 24K, basalt roving BCF13 - 2520tex - KV12 Int. or Saint-Gobain - Vetrotex E-glass E2400P192 respectively, which are fabricated under simplified pultruded home-made impregnation machine and cured at optimal range of curing conditions, are studied. The effects of severe thermal exposure in a furnace at high temperatures up to 200, 400, 600, 800 and 1000oC for 1 hour on the thermal-mechanical properties of the geocomposites are evaluated. The flexural properties of the resulting composites are determined on a universal testing machine under three-point bending mode in accordance with ASTM C 1341 u 06 and DIN V ENV 658-3:1993-02. Generally, all the geocomposites exhibit very good thermal-mechanical properties, retain nearly 50% of flexural strength even after severe thermal exposure up to 600 *C for basalt and E-glass fiber reinforced geocomposites and 1000 *C for geocomposites with carbon fiber reinforcement for 1 hour in oxidation environment; In addition, dimensional stability, non toxic fumes and smokes of geocomposites are detected. The microstructure of concerned composites M1/Carbon and M2/Carbon are analyzed by means of Scanning Electron Microscope (SEM). Moreover, Energy Dispersive X-ray Analysis (EDX) is used to determine weather initial reaction layer on the fibers will be presented as well.
- In this chapter, two formulations of geopolymer matrices, abbreviated as zM1Z and zM2Z, based on thermal silica with fine size-particle and main molar ratio Si/Al 10, potassium hydroxide solution and further minor admixtures for improving application features, are created and synthesized; The pure geopolymers, with the density around 2.2 Mg m-3 and rather homogeneous distribution of all main elements, present very good mechanical properties, almost at the top of the results of previous studies. The properties of six geopolymer composites based on M1, M2 and approximately 45, 53 or 60 vol.% of unidirectional carbon fibers HTS 5631 1600tex 24K, basalt roving BCF13 - 2520tex - KV12 Int. or Saint-Gobain - Vetrotex E-glass E2400P192 respectively, which are fabricated under simplified pultruded home-made impregnation machine and cured at optimal range of curing conditions, are studied. The effects of severe thermal exposure in a furnace at high temperatures up to 200, 400, 600, 800 and 1000oC for 1 hour on the thermal-mechanical properties of the geocomposites are evaluated. The flexural properties of the resulting composites are determined on a universal testing machine under three-point bending mode in accordance with ASTM C 1341 u 06 and DIN V ENV 658-3:1993-02. Generally, all the geocomposites exhibit very good thermal-mechanical properties, retain nearly 50% of flexural strength even after severe thermal exposure up to 600 *C for basalt and E-glass fiber reinforced geocomposites and 1000 *C for geocomposites with carbon fiber reinforcement for 1 hour in oxidation environment; In addition, dimensional stability, non toxic fumes and smokes of geocomposites are detected. The microstructure of concerned composites M1/Carbon and M2/Carbon are analyzed by means of Scanning Electron Microscope (SEM). Moreover, Energy Dispersive X-ray Analysis (EDX) is used to determine weather initial reaction layer on the fibers will be presented as well. (en)
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| Title
| - New Generation of Geopolymer Composite for Fire-Resistance
- New Generation of Geopolymer Composite for Fire-Resistance (en)
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| skos:prefLabel
| - New Generation of Geopolymer Composite for Fire-Resistance
- New Generation of Geopolymer Composite for Fire-Resistance (en)
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| skos:notation
| - RIV/46747885:24210/11:#0002458!RIV12-MSM-24210___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(FT-TA4/068), Z(MSM4674788501)
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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
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/46747885:24210/11:#0002458
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - silica-based geopolymer; unidirectional fiber; geocomposite; fire-resistant property (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...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - Advances in Composite Materials - Analysis of Natural and Man-Made Materials
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...v/pocetStranKnihy
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Kroisová, Dora
- BORTNOVSKY, Oleg
- Louda, Petr
- TRAN DOAN, Hung
- NGUYEN THANG, Xiem
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| http://linked.open...n/vavai/riv/zamer
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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