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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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Vinai, Raffaele
University of Exeter
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2018Use of Vietnamese rice husk ash for the production of sodium silicate as the activator for alkali-activated binderscitations
- 2017The Influence of Paste Content, Water-to-Solid Ratio and Binder Blend on Compressive Strength and Workability of Ambient Temperature Cured Alkali Activated Concrete
- 2017Towards greener concrete: The challenges of sus-con projectcitations
- 2017Guidelines for mix proportioning of fly ash/GGBS based alkali activated concretescitations
- 2016The Role of Water Content and Paste Proportion on Physico-mechanical Properties of Alkali Activated Fly Ash–Ggbs Concretecitations
- 2016Factors influencing the compressive strength of fly ash based geopolymerscitations
- 2016Factors influencing the compressive strengths of fly ash based geopolymerscitations
- 2016Development of sustainable, innovative and energy-efficient concrete, based on the integration of all-waste materials: SUS-CON panels for building applications
- 2015Sustainable concrete: design and testing
- 2015Sustainable concrete: design and testing
- 2014Alkali activated fuel ash and slag mixes
Places of action
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document
The Influence of Paste Content, Water-to-Solid Ratio and Binder Blend on Compressive Strength and Workability of Ambient Temperature Cured Alkali Activated Concrete
Abstract
Alkali-Activated Concretes (AACs) or Geopolymers (GP) are considered as potential candidates to play the role of binders substituting Portland cement (PC) in concrete. However, these materials differ from PC in terms of fresh properties (setting time, slump), mechanical properties (strength development, elastic features), and mix proportions. Better understanding of these engineering properties can help to design low CO2 footprint AAC formulations for different construction applications. AACs despite demonstrating promising strength and workability potentials, are still not widely used at an industrial scale, mainly due to the lack of a widely accepted standardised mix design method that fulfils the design requirements such as strength, workability and setting time. In this paper, the proportioning of ambient temperature cured AAC produced from pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) activated with a mixture of sodium hydroxide and sodium silicate solution is discussed. The influence of paste content, water to solid ratio (W/S) and binder blend (PFA/GGBS) ratio was studied. It was found that the strength increased with the increase of GGBS content in the blend. The paste content was found to greatly affect the workability of AAC whereas its influence on strength was insignificant in the investigated range. The influence of W/S ratio on strength was found to be insignificant until a certain ratio beyond which a noticeable drop was detected <br/><br/>