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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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Pacheco Torgal, F.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2012An overview on concrete carbonation in the context of eco-efficient construction: Evaluation, use of SCMs and/or RACcitations
- 2008Alkali-activated binders: A review. Part 2. About materials and binders manufacturecitations
- 2008Adhesion characterization of tungsten mine waste geopolymeric binder. Influence of OPC concrete substrate surface treatmentcitations
- 2008Properties of tungsten mine waste geopolymeric bindercitations
- 2007Investigations about the effect of aggregates on strength and microstructure of geopolymeric mine waste mud binderscitations
- 2002Experimental study of concrete durability parameters produced with different types of aggregates
Places of action
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article
Investigations about the effect of aggregates on strength and microstructure of geopolymeric mine waste mud binders
Abstract
Geopolymeric binders appear to be an alternative to traditional Portland cement, due to high mechanical performances and environmental advantages. Some aspects related to the effect of aggregates in the microstructure and mechanical behaviour of geopolymeric mine waste mud (GMWM) binders are reported in the present study. Compressive and tensile strength of mine waste mud binders were analyzed. The factors investigated were the aggregate/binder ratio, the aggregate dimension and aggregate type, schist, granite and limestone. Test results showed that GMWM binders have a very high strength at early ages and also possess a very high tensile strength. It's suggested that behaviour may be due to the dissolution of quartz and alumina in the presence of alkalis enhancing bonding between paste and aggregates. The aggregate dimension showed only significant effect on tensile strength. Limestone aggregates showed a chemical bond to the alkali-activated paste but presented higher shrinkage. It was also found that no traditional porous ITZ was detected in GMWM binders.