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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vyšvařil, Martin
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2021Effects of natural zeolite addition on the properties of lime putty-based rendering mortarscitations
- 2021Foam Glass Dust as a Supplementary Material in Lime Mortarscitations
- 2020Fresh state properties of lime mortars with foam glass dust
- 2020Fresh state properties of lime mortars with foam glass dust
- 2020Rheology of natural hydraulic lime pastes modified by non-traditional biopolymeric admixturescitations
- 2019Influence of biopolymeric water-retaining admixtures on hydration of Portland cement studied using isothermal calorimetrycitations
- 2019Rheology of natural hydraulic lime pastes modified by non-traditional biopolymeric admixturescitations
- 2019Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatorcitations
- 2018Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO contentcitations
- 2018Hygric parameters of ternary binder based plasters lightweighted by expanded perlite
- 2018Rheological properties and microstructure of binary waste red brick powder /metakaolin geopolymercitations
- 2018Rheological Properties of Lime Mortars with Guar Gum Derivativescitations
- 2018Ternary binder based plasters with improved thermal insulating ability ; Omítky z ternárních směsí s vylepšenými tepelně izolačními schopnostmicitations
- 2018Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatorcitations
- 2018Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlitecitations
- 2018Effect of particle size of waste brick powder on the properties of alkaline activated materialscitations
- 2018Rheological Properties of Alkali-Activated Brick Powder Based Pastes: Effect of Alkali Activator and Silicate Moduluscitations
- 2017Ternary binder based plasters with improved thermal insulating abilitycitations
- 2016Immobilization of Heavy Metals in Natural Zeolite-blended Cement Pastes citations
- 2015One-year sulfate attack on various types of fine grained concrete
- 2015Microstructural changes of fine-grained concrete exposed to a sulfate attackcitations
- 2014Physico-mechanical and microstructural properties of rehydrated blended cement pastes
- 2009Synthesis and characterization of new imidophosphanes and phosphine oxides containing 3,3,4,4-tetramethylsuccinimidyl group
Places of action
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article
Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO content
Abstract
Geopolymers are conventionally prepared from metakaolin, fly ash, or blast furnace slag. In this paper, geopolymer synthesis using two different red-clay ceramic powders and a varying amount of Na2O/SiO2 activator is presented. Experimental results show that despite of the high content of crystalline minerals and lower concentration of amorphous matter, both tested precursors enable to prepare geopolymers with satisfactory mechanical properties. The discussion of measured values of compressive strength with respect to SiO2/Al2O3 and Al2O3/(Na2O+K2O) ratios in the prepared geopolymer mixes reveals that the consideration of only amorphous portion of ceramics is appropriate. A higher content of CaO in the precursor is found to cause a broader pore size distribution and higher porosity of resulting geopolymers, which is due to the formation of calcium silicate hydrates.