INVESTIGADORES
RENDTORFF BIRRER Nicolas Maximiliano
artículos
Título:
Mullite macro-needles for reinforcement of refractory castables
Autor/es:
MOCCIARO, A.; CIMAS, A.; RENDTORFF, N. M.; SCIAN, A. N.
Revista:
CERâMICA
Editorial:
Asociación Barasilera de Ceramica
Referencias:
Año: 2022 vol. 68 p. 420 - 426
ISSN:
0366-6913
Resumen:
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. Specimens with theceramic reinforcement were evaluated by compression after being treated at two temperatures (815 and 1400 °C). The results werecompared with those obtained using the same commercial concrete but reinforced with steel fibers and without reinforcement.Compression values presented by specimens with ceramic macro-needles were 74% and 50% higher than specimens with steelfibers after exposition to 815 and 1400 °C, respectively. Based on these results, it was established that ceramic macro-needles area feasible solution to improve the mechanical resistance of castables exposed to high temperatures.
