| 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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Macphee, Donald
University of Aberdeen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Fairly and Rapidly Assessing Low Carbon Concrete Made with Slowly Reacting Cements
- 2020Exposed Aggregate Areas and Photocatalytic Efficiency of Photocatalytic Aggregate Mortarcitations
- 2019Photocatalytic Functionalized Aggregatecitations
- 2018The cuboid method for measurement of thermal properties of cement-based materials using the guarded heat flow metercitations
- 2017The reactivity of aluminosilicate glasses in cements - effects of Ca content on dissolution characteristics and surface precipitationcitations
- 2017An investigation of the electronic, structural and magnetic properties of the ruddlesden-popper phase Sr3RuCoO7citations
- 2016An investigation of the optical properties and water splitting potential of the coloured metallic perovskites Sr1-xBaxMoO3citations
- 2016Band structure and charge carrier dynamics in (W,N)-codoped TiO2 resolved by electrochemical impedance spectroscopy combined with UV-vis and EPR spectroscopiescitations
- 2016The Structure and Optical Properties of Sr1-xCaxMoO3citations
- 2015Properties and photochemistry of valence-induced-Ti3+ enriched (Nb,N)-codoped anatase TiO2 semiconductorscitations
- 2011A physico-chemical basis for novel cementitious binderscitations
- 2010Novel cement systems (sustainability)citations
- 2010Effect of Calcium Additions on N-A-S-H Cementitious Gelscitations
- 2010Effect on fresh C-S-H gels of the simultaneous addition of alkali and aluminiumcitations
- 2010Factors influencing colour in white Portland cements
- 2010Engineering Photocatalytic Cements: Understanding TiO2 Surface Chemistry to Control and Modulate Photocatalytic Performancescitations
- 2010Stability of synthetic calcium silicate hydrate gels in presence of alkalis, aluminum, and soluble silicacitations
- 2009Rhodamine B discolouration on TiO 2 in the cement environmentcitations
- 2009Study of the decalcification process in mortars degraded by NH4NO3 by using ultrasonic techniquescitations
Places of action
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article
The reactivity of aluminosilicate glasses in cements - effects of Ca content on dissolution characteristics and surface precipitation
Abstract
The partial replacement of Portland cement (PC) by glassy aluminosilicates in cementitious binders has been common practice for decades, offering concretes with increased durability and long term strength compared with PC concretes. However, these concretes typically display a much lower rate of strength development and this limits practical levels of cement replacement. The factors contributing to strength development in concrete are complex but amongst them is the reactivity of the SCM, which has been associated with glass content, and composition with respect to the ratio of network modifiers to network formers, etc. This paper revisits the assessment of reactivity using a fundamental dissolution approach and highlights a rapid migration of soluble constituents, specifically Ca, to the surface on contact with an activating solution. The conditions which affect the composition of Ca-bearing precipitates and their role in on-going hydration is discussed.