Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/65608
Título: | Mechanical and thermal performance characterisation of compressed earth blocks |
Autor(es): | Teixeira, Elisabete Rodrigues Machado, Gilberto Junior, Adilson de Paula Guarnier, Christiane Fernandes, Jorge Emanuel Pereira Silva, Sandra Monteiro Mateus, Ricardo |
Palavras-chave: | Compressed earth blocks (CEBs) Compressive strength Durability Guarded hot box Thermal transmittance |
Data: | 10-Jun-2020 |
Editora: | Multidisciplinary Digital Publishing Institute (MDPI) |
Revista: | Energies |
Citação: | Teixeira, E.R.; Machado, G.; P. Junior, A.; Guarnier, C.; Fernandes, J.; Silva, S.M.; Mateus, R. Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks. Energies 2020, 13, 2978. |
Resumo(s): | The present research is focused on an experimental investigation to evaluate the mechanical, durability, and thermal performance of compressed earth blocks (CEBs) produced in Portugal. CEBs were analysed in terms of electrical resistivity, ultrasonic pulse velocity, compressive strength, total water absorption, water absorption by capillarity, accelerated erosion test, and thermal transmittance evaluated in a guarded hotbox setup apparatus. Overall, the results showed that compressed earth blocks presented good mechanical and durability properties. Still, they had some issues in terms of porosity due to the particle size distribution of soil used for their production. The compressive strength value obtained was 9 MPa, which is considerably higher than the minimum requirements for compressed earth blocks. Moreover, they presented a heat transfer coefficient of 2.66 W/(m2·K). This heat transfer coefficient means that this type of masonry unit cannot be used in the building envelope without an additional thermal insulation layer but shows that they are suitable to be used in partition walls. Although CEBs have promising characteristics when compared to conventional bricks, results also showed that their proprieties could even be improved if optimisation of the soil mixture is implemented. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/65608 |
DOI: | 10.3390/en13112978 |
ISSN: | 1996-1073 |
Versão da editora: | https://www.mdpi.com/1996-1073/13/11/2978 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | C-TAC - Artigos em Revistas Internacionais ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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energies-13-02978.pdf | 6,97 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons