Next Article in Journal
Development of an Efficient Tool for Solar Charging Station Management for Electric Vehicles
Next Article in Special Issue
Life-Cycle Assessment of Alternative Envelope Construction for a New House in South-Western Europe: Embodied and Operational Magnitude
Previous Article in Journal
Tensile and Shear Mechanical Characteristics of Longmaxi Shale Laminae Dependent on the Mineral Composition and Morphology
Previous Article in Special Issue
Design and Construction of a New Metering Hot Box for the In Situ Hygrothermal Measurement in Dynamic Conditions of Historic Masonries
Open AccessArticle

Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks

1
Department of Civil Engineering, Institute for Sustainability and Innovation in Structural Engineering (ISISE), University of Minho, 4800-058 Guimarães, Portugal
2
Federal Center for Technological Education “Celso Suckow da Fonseca” (CEFET/RJ), Rio de Janeiro-RJ 20271-110, Brazil
*
Author to whom correspondence should be addressed.
Energies 2020, 13(11), 2978; https://doi.org/10.3390/en13112978
Received: 30 April 2020 / Revised: 25 May 2020 / Accepted: 2 June 2020 / Published: 10 June 2020
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. View Full-Text
Keywords: compressed earth blocks (CEBs); compressive strength; durability; guarded hot box; thermal transmittance compressed earth blocks (CEBs); compressive strength; durability; guarded hot box; thermal transmittance
Show Figures

Graphical abstract

MDPI and ACS Style

Teixeira, E.R.; Machado, G.; P. Junior, A.d.; Guarnier, C.; Fernandes, J.; Silva, S.M.; Mateus, R. Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks. Energies 2020, 13, 2978. https://doi.org/10.3390/en13112978

AMA Style

Teixeira ER, Machado G, P. Junior Ad, Guarnier C, Fernandes J, Silva SM, Mateus R. Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks. Energies. 2020; 13(11):2978. https://doi.org/10.3390/en13112978

Chicago/Turabian Style

Teixeira, Elisabete R.; Machado, Gilberto; P. Junior, Adilson d.; Guarnier, Christiane; Fernandes, Jorge; Silva, Sandra M.; Mateus, Ricardo. 2020. "Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks" Energies 13, no. 11: 2978. https://doi.org/10.3390/en13112978

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop