Reasons for crack propagation and strength loss in refractory castables based on changes in their chemical compositions and micromorphologies with heating: special focus on the large blocks [PDF]
Journal of Asian Ceramic Societies, 2019 Among the most significant problems in industrial refractory manufacture, especially of monolithic refractories, are the formation of cracks and loss of strength in green bodies or during heating of the refractory castables.
Nader Kazemi
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Mullite macro-needles for reinforcement of refractory castables
Cerâmica, 2022 Ceramic macro-needles incorporation as reinforcement in commercial refractory castable was studied. Ceramic macro-needles (Ø2x20 mm) were made from kaolinite clay and gibbsite to obtain mullite as the main crystalline phase.
A. Mocciaro +3 more
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Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al2O3) Aggregates. [PDF]
Materials (Basel), 2021 Aiming at optimizing properties of alumina-spinel refractory castables, coarse corundum particles were replaced partially with the particles of a novel porous multi-component CMA (CaO-MgO-Al2O3) aggregate in the same size.
Tang H +5 more
europepmc +2 more sources
Resistência à erosão de concretos refratários de alta alumina nanoligados Erosion resistance of nanobonded high-alumina refractory castables [PDF]
Cerâmica, 2011 A avaliação do emprego de concretos refratários nanoligados em aplicações onde ocorre desgaste por erosão é de importante interesse devido aos estudos recentes que indicam esta rota como uma alternativa à substituição do cimento de aluminato de cálcio ...
V. A. A. dos Santos +4 more
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Effect of Prewetting Cenospheres on Hydration Kinetics, Microstructure, and Mechanical Properties of Refractory Castables [PDF]
CrystalsThis study investigated the effect of non-prewetted and prewetted cenospheres (CSs) on the hydration course and physical and mechanical properties of refractory castable mixtures incorporated with nano silica (NS). The fixed amount of 0.1% of NS improves
Ina Pundienė, Jolanta Pranckevičienė
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Rheology of refractory concrete: An article review
Boletín de la Sociedad Española de Cerámica y Vidrio, 2022 Ceramic engineers have investigated the rheology of the refractory concrete to keep the balance between the desired characteristics of castables and its flow demeanor.
Ibrahim M.I. Bayoumi +2 more
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Evaluation of the combined addition of aluminum lactate and calcium carbonate to alumina-based castables [PDF]
Cerâmica, 2021 Calcium aluminate cement (CAC) can induce the development of high green mechanical strength to refractory castables in a short period of time (24 h). However, the production of this hydraulic binder is energy-intensive and releases a large content of ...
L. B. Consonni +2 more
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Physical and mechanical properties of low, ultralow and no cement refractory castables containing MgO nanoparticles developed in situ by means of polymeric resins [PDF]
Cerâmica, 2019 The introduction of MgO nanoparticles developed in situ in the matrix of high-alumina low cement, ultra-low and no cement refractory castables was made by means of a low viscosity containing aqueous polymeric resin, produced by the Pechini method.
J. A. Alves Júnior, J. B. Baldo
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Applied Sciences, 2022 This study investigated the effect of the CaO/SiO2 mass ratio of steel slag on the corrosion behavior of spinel-forming alumina-based castables with a content of MgO (3–7 wt.%).
Jakub Ramult +3 more
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Open Ceramics, 2023 The present work investigated the effect of relatively small additions of impurities originating in secondary raw materials on the thermomechanical properties of alumina castables bonded with active alumina.
Jacek Podwórny +8 more
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