| People | Locations | Statistics |
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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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Rovnanikova, Pavla
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2021Influence of rock inclusion composition on the fracture response of cement-based composite specimenscitations
- 2020Characterization of Ceramic-Based Alkali Activated Aluminosilicate Compositescitations
- 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
- 2018High-strength concrete based on ternary binder with high pozzolan contentcitations
- 2018Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO contentcitations
- 2018Thermal and Hygric Properties of Alkali Activated Aluminosilicates
- 2018Rheological properties and microstructure of binary waste red brick powder /metakaolin geopolymercitations
- 2018Application of waste brick powder in alkali activated aluminosilicates: Functional and environmental aspectscitations
- 2018MATERIAL CHARACTERISTICS OF GEOPOLYMERS BASED ON AN INDUSTRIAL WASTE PRODUCT
- 2018Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatorcitations
- 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
- 2017Lime-based plasters with combined expanded clay-silica aggregate: Microstructure, texture and engineering propertiescitations
- 2017Improvement of Properties of Aluminosilicate Pastes Based on Optimization of Curing Parameters
- 2014Physico-mechanical and microstructural properties of rehydrated blended cement pastes
- 2011Commercial renovation renders: mechanical, hygric, thermal and durability properties
- 2009Fly ash influence on the properties of high performance concrete
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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.