The production of porous brick material from diatomaceous earth and Brazil nut shell ash

E. Escalera, G. Garcia, R. Terán, R. Tegman, M. L. Antti, M. Odén

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

18 Citas (Scopus)

Resumen

Diatomaceous earth was mixed with Brazil nut shell ash (BNS ash) in different amounts between 0 and 30 wt% and sintered at temperatures between 750 and 950°C. The BNS ash contains 33 wt% K2O and 11 wt% CaO mainly in carbonate form. The addition of BNS ash into the diatomaceous earth caused significant changes of the microstructure after sintering. The BNS ash addition produces lightweight porous bricks with acceptable strength at lower sintering temperature. The best combination of strength and porosity was achieved for a mixture of 10 wt% of BNS ash in the diatomaceous earth sintered at 850°C. The achieved high porosity was 49%, density 1.06 g/cm3, thermal conductivity 0.20 W/(m K) and the compressive strength was 8.5 MPa.

Idioma originalInglés
Páginas (desde-hasta)257-264
Número de páginas8
PublicaciónConstruction and Building Materials
Volumen98
DOI
EstadoPublicada - 15 nov. 2015
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

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