| 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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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
Thermally treated coal mining waste as a supplementary cementitious material – Case study from Bogdanka mine, Poland
Abstract
The presented study deals with the comprehensive analysis of coal gangue from the Bogdanka mine (Lubelski Węgiel „Bogdanka" S.A.) in terms of its properties in both raw and activated states, and with the evaluation of the functional parameters of blended cement pastes containing 10 wt%, 15 wt%, and 20 wt% of thermally treated mining waste. The assessment of the raw material included chemical, physical, mineralogical, and morphological characterization, thermogravimetry, and pozzolanic activity tests. The motivation for the research was the intention to utilize a significant amount of waste from the Bogdanka mine with low additional energy consumption for processing. For this purpose, the temperature of 600 °C was chosen for its thermal activation based on the simultaneous thermal analysis (STA) measurement. The activated coal gangue was tested in the same way as the raw materials and then applied in the blended cement pastes as a partial cement substitute. The cement pastes were evaluated in the fresh state (flow table test), and also at the age of 7, 28, and 90 days. The structural, microstructural, mechanical, and hygric parameters were investigated and compared with the plain cement paste. Furthermore, the development and rate of the pozzolanic reaction were studied using simultaneous thermal analysis with mass spectrometry (STA-MS), X-Ray diffraction (XRD), isothermal calorimetry, and assessment of strength activity index (SAI). The performed analyses gave evidence of the pozzolanic activity of thermally activated coal mining waste (ACMW) from the Bogdanka mine and its effectiveness in cement blends. The slightly dropped hydration degree was later compensated by prolonged curing time and progress in the pozzolanic reaction. The blending of Portland cement with the examined ACMW did not negatively affect the rheology and setting time of fresh blended pastes. Considering the hardened cement blends' structural, microstructural, and mechanical parameters, ACMW can be safely used as a part of a PC-based blended binder for up to 20% replacement of cement mass.