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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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Lauermannová, Anna-Marie
University of Chemistry and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Impact of nano-dopants on the mechanical and physical properties of magnesium oxychloride cement composites – Experimental assessmentcitations
- 2023Utilization of waste carbon spheres in magnesium oxychloride cementcitations
- 2023Case study on nanoscale modification of MOC-based construction composites: Introduction of molybdenum disulfidecitations
- 2023Thermally treated coal mining waste as a supplementary cementitious material – Case study from Bogdanka mine, Polandcitations
- 2023Utilization of extracted carbonaceous shale waste in eco-friendly cementitious blendscitations
- 2023Magnesium oxychloride cement-based composites for latent heat storage: The effect of the introduction of multi-walled carbon nanotubescitations
- 2023Case study on MOC composites enriched by foamed glass and ground glass waste: Experimental assessment of material properties and performancecitations
- 2023MOC Composites for Constructions: Improvement of Water Resistance by Addition of Nanodopants and Polyphenolcitations
- 2023Lactose/tannin-based calcium aluminate coatings for carbon-bonded alumina foam filters: A novel approach in environment-friendly steel melt filtrationcitations
- 2023MgO–C refractories based on refractory recyclates and environmentally friendly binderscitations
- 2022Ultra-high strength multicomponent composites based on reactive magnesia: Tailoring of material properties by addition of 1D and 2D carbon nanoadditivescitations
- 2022Magnesium oxychloride cement with phase change material: Novel environmentally-friendly composites for heat storagecitations
- 2022Assessment of wood chips ash as efficient admixture in foamed glass-MOC compositescitations
- 2022Co-Doped Magnesium Oxychloride Composites with Unique Flexural Strength for Construction Usecitations
- 2022Solid-liquid equilibria in the Bi-Ca-Co-O system
- 2022Graphene- and Graphite Oxide-Reinforced Magnesium Oxychloride Cement Composites for the Construction Usecitations
- 2021Regolith-based magnesium oxychloride composites doped by graphene: Novel high-performance building materials for lunar constructionscitations
- 2021Graphene- And graphite oxide-reinforced magnesium oxychloride cement composites for the construction usecitations
- 2021Magnesium oxychloride-graphene composites: Towards high strength and water resistant materials for construction industrycitations
- 2021The influence of graphene specific surface on material properties of MOC-based composites for construction usecitations
- 2020Synthesis, structure, and thermal stability of magnesium oxychloride 5Mg(OH)2·MgCl2·8H2Ocitations
- 2020Magnesium Oxybromides MOB-318 and MOB-518: Brominated Analogues of Magnesium Oxychloridescitations
- 2020Towards novel building materials: High-strength nanocomposites based on graphene, graphite oxide and magnesium oxychloridecitations
- 2020Low-Carbon Composite Based on MOC, Silica Sand and Ground Porcelain Insulator Wastecitations
Places of action
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article
Synthesis, structure, and thermal stability of magnesium oxychloride 5Mg(OH)2·MgCl2·8H2O
Abstract
Today, low-energy and low-carbon footprint alternatives to Portland cement are searched because of huge CO2 emissions coming from Portland clinker calcination. Because of some superior properties of magnesium oxychloride cement (MOC) and the lower carbon footprint of its production, MOC became an intensively studied material with high application potential for the design and development of construction products. In this contribution, magnesium oxychloride with stoichiometry 5Mg(OH)2·MgCl2·8H2O (Phase 5) was prepared and characterized. The kinetics of formation and the phase composition of the material were determined using X-ray diffraction and consequent Rietveld analysis. The morphology was studied by scanning electron microscopy, and the chemical composition was determined by both energy-dispersive spectroscopy and X-ray fluorescence. Moreover, the simultaneous thermal analysis in combination with mass spectroscopy and Fourier-transform infrared spectroscopy was employed to study the thermal stability. Using mass spectroscopy, we were able to clarify the mechanism of water and hydrochloric acid release, which was not previously reported. The observed structural and chemical changes induced by exposure of studied samples to elevated temperatures were linked with the measured residual macro and micro parameters, such as bulk density, specific density, porosity, water absorption, compressive strength, and pore size distribution. The Phase 5 revealed a needle-like crystalline morphology which formed rapidly and was almost completed after 96 h, resulting in relatively high material strength. The four-day compressive strength of magnesium oxychloride cement was similar to the 28-day compressive strength of Portland cement. The thermal stability of Phase 5 was low as the observed disruptive thermal processes were completed at temperatures lower than 470 °C. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.