| 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
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article
Pozzolanic reactivity of coal bottom ash after chemically pre-treated with sulfuric acid
Abstract
Current trend in construction industry has highlighted the use of silica-rich supplementary cementitious materials from industrial wastes in the production of concrete. Numerous studies have validated the pozzolanic properties of these materials, yet coal bottom ash received only infamous reputation as a pozzolanic material, owing to its low reactivity and heavy metals contaminants. Therefore this study was purposed to enhance the pozzolanic reactivity of coal bottom ash through chemical pre-treatment process. Different concentrations of acids and treatment period were studied to obtain optimum parameters for pre-treatment process. Treated ash was characterized for its chemical oxide composition. Its effect on the hydration of cement was studied through the inclusion as cement replacement material in mortar mixtures. From the chemical oxide compositions, a combination of 0.5 M of H2SO4 and 1 hour soaking duration presented the highest SiO2 proportion in the ash. Its inclusion at 5% (by weight of cement) to replace cement proportion in mortar mixtures was able to enhance the compressive strength of mortar at later age, regardless of its slower strength development in the early age. Utilizing treated coal bottom ash as partial cement replacement material has unlocked new achievement for greener future in construction industry.