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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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Łukowski, Paweł
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2021Concrete corrosion in a wastewater treatment plant – A comprehensive case studycitations
- 2020Effect of Polymer Addition on Performance of Portland Cement Mortar Exposed to Sulphate Attackcitations
- 2020Undissolved Ilmenite Mud from TiO2 Production—Waste or a Valuable Addition to Portland Cement Composites?citations
- 2020Application of Ilmenite Mud Waste as an Addition to Concrete citations
- 2018Influence of Method of Preparation of PC Mortar with Waste Perlite Powder on Its Rheological Properties
- 2016Studies of the microstructure of epoxy-cement compositiescitations
- 2016Application of fibres from recycled PET bottles for concrete reinforcement
- 2015Effect of perlite waste powder on chemical resistance of polymer concrete composites
- 2015Durability of Mortars Containing Ground Granulated Blast-furnace Slag in Acid and Sulphate Environmentcitations
- 2010Polymer-cement Mortar s with Improved Adhesion to Concrete Substrates
- 2008Continuity threshold of the polymer phase in polymer-cement composites
- 2007Ranking Procedure for Polymeric Coatings and Hydrophobic Agents for Concrete Protection/Methode zum Klassifizieren von polymeren Beschichtungen und hydrophobierenden Wirkstoffen für den Betonschutz
- 2006Application of percolation theory for explaining of microstructure forming in polymer-cement concretes
- 2004 Cement concrete and concrete-polymer composites: two merging worlds A report from 11th ICPIC Congress in Berlin, 2004
Places of action
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article
Undissolved Ilmenite Mud from TiO2 Production—Waste or a Valuable Addition to Portland Cement Composites?
Abstract
This paper presents a method of utilising ilmenite MUD created during the production of titanium dioxide (TiO2) according to the sulphate method as an additive for Portland cement composites. After the production process, undissolved MUD was additionally rinsed with water and filtrated in the factory to make it more useful (R-MUD) for implementation and also to turn back some of the by-products of the production of TiO2. R-MUD is less hazardous waste than MUD. It has a lower concentration of sulphuric acid and some heavy metals. The rinsing process raised the concentration of SiO2, which is a valuable part of R-MUD because of its potential pozzolanic activity. This means that the R-MUD might be a reactive substitute of part of Portland cement in building composites. The article presents the results of research on the pozzolanic activity of R-MUD and other materials with proved pozzolanic activity, such as silica fume, fly ash and natural pozzolana (trass). Tests were performed using thermal analysis techniques. The tests showed that the pozzolanic activity or R-MUD after three days is at the same level as silica fume and after 28 days it is twice as high as the activity of fly ash. Beyond the 180th day of curing, R-MUD had the same level of activity as fly ash. The summary is supplemented by calorimetric tests, which confirm the high reactivity of R-MUD compared to other commonly used concrete additives, already in the initial hydration period. In summary, heat of hydration after 72 h of Portland cement with R-MUD is at the same level as the heat of hydration of Portland cement with silica fume and also pure Portland cement grout. The results confirm that the process of formation of micro-silica contained in R-MUD react with calcium hydroxide to form the C-S-H phase, which is responsible for the microstructure of cement composites.