| 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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Tyrer, Mark
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Topics
Publications (10/10 displayed)
- 2024Influence of Calcining Temperature on the Mineralogical and Mechanical Performance of Calcined Impure Kaolinitic Clays in Portland Cement Mortarscitations
- 2022Comparing the Measured and Thermodynamically Predicted AFm Phases in a Hydrating Cementcitations
- 2022Potential of calcined brick clay as a partial substitution in blended cement mortarscitations
- 2022Mechanochemical Characterisation of Calcined Impure Kaolinitic Clay as a Composite Binder in Cementitious Mortarscitations
- 2022Performance of low-grade kaolinitic clay as a cement substitute in mortar: A comparative study with fly ash
- 2022Use of low grade kaolinitic clays in development of a pozzolan-cement binder system
- 2020Effect of Power Ultrasound on the Portland cement paste and mortar: study of chemical shrinkage and compressive and flexural strength development
- 2019Influence of power ultrasound on the portland cement pore solution compositions
- 2019Effects of Sodium Silicate Proportion on Strength Development of Calcined Clay Geopolymer Mortar
- 2018Application of power ultrasound to cementitious materials: Advances, issues and perspectivescitations
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document
Effects of Sodium Silicate Proportion on Strength Development of Calcined Clay Geopolymer Mortar
Abstract
Geopolymers are derived from the synthesis of reactive alumino silicate source with alkali metal source to produce a binder that has lower carbon footprint compared to the traditional Portland cement. The long-term supply of precursors for geopolymers in the UK will be difficult to secure based on the dominant used materials – PFA, GGBS and white Metakaolin. Iron rich lateritic clay may offer a good alternative due to its low embodied energy and abundance. In this study, seven mixes were designed and tested. The first five mixes were based on varying the molar oxide ratios of the mortar mixes by activating the flash calcined lithomarge clay with different proportions of 54.5% Na2SiO3 solution. The last two mixes were grouts based on different water to<br/>geopolymer solid ratios. The important characteristics of the fresh and hardened mortars that were investigated based on the relevant standards are: strength development, setting times, UPV and rheological properties. The mix that achieved the peak strength of 30 MPa at 28 days cured under sealed<br/>condition has molar oxide ratios - SiO2/Al2O3, Na2O/Al2O3, Na2O/SiO2 and H2O/Na2O of 4.12, 1, 0.24 and 14.1 respectively. The results also showed that a more controllable and consistent rheology was achieved by increasing the water to geopolymer solid ratio of the grout.