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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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Bondar, Dali
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2020RILEM TC 247-DTA round robin testcitations
- 2020RILEM TC 247-DTA round robin test: carbonation and chloride penetration testing of alkali-activated concretescitations
- 2019RILEM TC 247-DTA round robin testcitations
- 2019RILEM TC 247-DTA round robin test: mix design and reproducibility of compressive strength of alkali-activated concretescitations
- 2019RILEM TC 247-DTA round robin test: mix design and reproducibility of compressive strength of alkali-activated concretescitations
- 2019RILEM TC 247-DTA round robin test: mix design and reproducibility of compressive strength of alkali-activated concretescitations
- 2019Suitability of alkali activated slag/fly ash (AA-GGBS/FA) concretes for chloride environments: Characterisation based on mix design and compliance testingcitations
- 2019Efficient mix design of alkali activated slag concretes based on packing fraction of ingredients and paste thicknesscitations
- 2018Alkali activated slag concretes designed for a desired slump, strength and chloride diffusivitycitations
- 2017Suitability Of Alkali Activated GGBS/fly Ash Concrete For Chloride Environments
- 2017Resistance of alkali activated concretes to sulphate attack
- 2016Resistance of alkali activated slag concretes to chloride environments based on chloride penetration measurements
- 2016Resistance of alkali activated slag concretes to chloride environments
- 2014Optimizing paste proportions to enhance early age strength of high volume fly ash (HVFA) concrete.
- 2013Alkali-Activated Natural Pozzolan Concrete as New Construction Material
- 2012Oxygen and Chloride Permeability of Alkali-Activated Natural Pozzolan Concrete
- 2011Engineering properties of alkali-activated natural pozzolan concrete
- 2009Alkali activation of Iranian natural pozzolans for producing geopolymer cement and concrete.
Places of action
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document
Optimizing paste proportions to enhance early age strength of high volume fly ash (HVFA) concrete.
Abstract
Use of higher proportions of fly ash as a cement replacement in concrete has obvious environmental benefits such as reducing cement consumption and increased use of fly ash (alleviating issues with fly ash disposal). HVFA concrete benefits from enhanced workability and cohesion, lower heat of hydration and increased long term strength and durability. However, high volumes of fly ash are not commonly used due to perceived lower early age strengths. In this investigation, addition of cement kiln dust (CKD) and gypsum to activate the fly ash was studied and the proportions used in the paste mixes were designed to optimize the mixture ingredients to achieve the highest early age compressive strength. It was found that CKD was much more effective in activating the fly ash than gypsum and appreciable early age compressive strengths were achieved for fly ash contents up to 60% of the binder material.