Influence of sawdust particle size on fired clay brick properties

G. Thalmaier; N. Cobîrzan; A. A. Balog; H. Constantinescu; M. Streza; M. Nasui; B. V. Neamtu

doi:10.3989/mc.2020.04219

Autores/as

G. Thalmaier Technical University of Cluj Napoca https://orcid.org/0000-0003-2762-6110
N. Cobîrzan Technical University of Cluj Napoca https://orcid.org/0000-0002-6904-0436
A. A. Balog Technical University of Cluj Napoca https://orcid.org/0000-0002-3587-6438
H. Constantinescu Technical University of Cluj Napoca https://orcid.org/0000-0003-3290-3290
M. Streza National Institute for Research and Development of Isotopic and Molecular Technologies, https://orcid.org/0000-0002-0030-8625
M. Nasui Technical University of Cluj Napoca https://orcid.org/0000-0002-4792-2032
B. V. Neamtu Technical University of Cluj Napoca https://orcid.org/0000-0003-0666-8303

DOI:

https://doi.org/10.3989/mc.2020.04219

Palabras clave:

Ladrillo, Resistencia a la compresión, Análisis térmico, Madera, Distribución de tamaño de poro

Resumen

Este estudio investiga el efecto de la adición de diferentes fracciones de tamaño del mismo agente de formación de poros (serrín) sobre la resistencia a la compresión y la transferencia de calor del material. Las muestras fueron presionadas, secadas y cocidas a alta temperatura dentro de un horno. Se identificaron transformaciones de fase mediante el empleo de análisis térmico diferencial, termogravimétrico y espectrometria de masas (DTA-TGA-MS) y técnicas de difracción de rayos X (XRD) en el intervalo de temperatura de 24-9000 C. Se realizaron análisis de imagen (IA) y ensayos de compresión para explicar el comportamiento mecánico de las muestras. La conductividad térmica se obtuvo mediante el uso de técnicas combinadas de calorimetría fotopiroeléctrica (PPE) y termografia de bloqueo (LIT). Se concluye que la dirección de prensado tiene un impacto sobre la distribución de los poros y la transferencia de calor por conducción.

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