| 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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Fourie, Andy
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022Residual strength based on CPT sleeve friction and a constant volume ring shear device
- 2021Producing sodium silicate powder from iron ore tailings for use as an activator in one-part geopolymer binderscitations
- 2021Initial hydration process of calcium silicates in Portland cementcitations
- 2021Critical State Soil Mechanics for Cyclic Liquefaction and Postliquefaction Behaviorcitations
- 2020Structural, electronic, and mechanical properties of calcium aluminate cementscitations
- 2020A narrow wall system to capture temperature stress-strain behavior in paste backfillcitations
- 2017Cyclic shear response of cemented paste backfillcitations
- 2017Effects of polymer treatment on undrained strengths and cyclic behavior of a low-plasticity slurrycitations
- 2016Influence of curing temperature and stress conditions on mechanical properties of cementing paste backfillcitations
- 2016Experimental study of the evolution of the soil water retention curve for granular material undergoing cement hydrationcitations
- 2015Cyclic shear behaviour of fibre-reinforced mine tailings
- 2013Cyclic shear response of fibre-reinforced cemented paste backfillcitations
- 2004Assessment of the modified slump test as a measure of the yield stress of high-density thickened tailingscitations
Places of action
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article
Producing sodium silicate powder from iron ore tailings for use as an activator in one-part geopolymer binders
Abstract
<p>Mine tailings disposal is an increasingly important issue for mining companies. Two recent tailing dam failures in Brazil have caused unmeasurable environmental, social and economic damages. This study evaluated the use of iron ore tailings (IOT) as a source of silica (SiO<sub>2</sub>) to produce an alternative form of sodium silicate (SS) for use as an activator in one-part geopolymer binders. The novel SS was produced in a mechano-thermo-chemical process for mixing IOT with sodium hydroxide (NaOH). The materials were characterised by mineral composition, mineral phase, chemical groups and morphology. One-part geopolymer binders were synthesised with commercial SS and SS produced from tailings to compare their reactivity. Compressive strength tests showed that geopolymers produced with tailings SS and commercial SS achieved maximum mechanical resistance values of approximately 32 MPa and 40 MPa, respectively, which are comparable to regular Portland cement.</p>