| 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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Kusbiantoro, Andri
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2021Geopolymer coating paste on concrete for photocatalytic performancecitations
- 2019Pozzolanic reactivity of coal bottom ash after chemically pre-treated with sulfuric acidcitations
- 2018Effect of mixing ingredient on workability and compressive strength of palm oil clinker lightweight concrete containing palm oil fuel ashcitations
- 2018Characterization of fly ash geopolymer concrete with glass bubble for thermal insulation applicationcitations
- 2018Effect of palm oil fuel ash on compressive strength of palm oil boiler stone lightweight aggregate concretecitations
- 2016Heat Optimization in Internal Curing Process of Geopolymer Mortar by Using Steel Dust
- 2015Extraction of Silica Gel from Agricultural Waste for Pozzolanic Application: A Review
- 2015Experimental Study on Shear Strengthening of RC Deep Beams with Large Openings Using CFRP
- 2015Effect of Mixing Ingredient on Compressive Strength of Oil Palm Shell Lightweight Aggregate Concrete Containing Palm Oil Fuel Ashcitations
- 2013Development of Sucrose and Citric Acid as the Natural based Admixture for Fly Ash based Geopolymercitations
- 2012The effect of microwave incinerated rice husk ash on the compressive and bond strength of fly ash based geopolymer concretecitations
- 2011Compressive Strength and Interfacial Transition Zone Characteristic of Geopolymer Concrete with Different Cast In-Situ Curing Conditions
- 2010The Effect of Sugar Based Retarder on Geopolymer Concrete in Different Curing Conditions
Places of action
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article
Development of Sucrose and Citric Acid as the Natural based Admixture for Fly Ash based Geopolymer
Abstract
Geopolymer is the state of the art binder in concrete technology. It utilizes alkaline solution to activate alumina and silica precursors from source material and forms aluminosilicate-based binding material. Nevertheless, the presence of high calcium content in the source material can reduce the performance of geopolymer binder, particularly in terms of its workability performance. The available commercial admixture cannot provide significant improvement to the rapid setting time generated by high calcium in geopolymer system. This research studied the effect of sucrose and citric acid as the proposed natural admixture in fly ash based geopolymer binder. Based on Vicat setting time result, these materials behave oppositely in fly ash-based geopolymer paste. Sucrose tends to increase the setting time of geopolymer paste, while citric acid has an accelerating effect. An unexpected trend is also shown from the relation between porosity and compressive strength of hardened specimen. It appears that the rapid production of geopolymer gels to fill the water-filled voids was not followed by the quality of gel structure. However, these results have presented an encouraging prospect for natural-based material to be developed as the admixture for geopolymer concrete.