Influence of Nongrouted, Grouted, and Grouted with Reinforcement on the Thermal Conductivity Value of Interlocking Compressed-Earth Bricks
Publication: Journal of Architectural Engineering
Volume 29, Issue 3
Abstract
This research aims to investigate the thermal conductivity of interlocking compressed-earth bricks (ICEBs) and the influence of nongrouted, grouted, and grouted with reinforcement on the thermal conductivity value of ICEBs. The centered hot plate approach in a steady-state regime is applied to calculate the thermal conductivity. The results are analyzed, and experiments on full and half bricks reveal that the thermal conductivity values for the ICEB for all conditions range from 0.335 to 0.359 W/m K (whether nongrouted, grouted, or grouted with reinforcement). Nongrouted ICEB has the lowest thermal conductivity value and is the best heat conductor when compared with grouted ICEB and grouted-with-reinforcement ICEB. The thermal conductivity value is the highest when the ICEB is grouted with reinforcement. This demonstrates that the ICEB’s construction conditions (nongrouted, grouted, and grouted with reinforcement) have a significant influence on its thermal conductivity value.
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Acknowledgments
The authors greatly acknowledge the efforts of Mr. Musari bin Shaffiee from ICEB Trading for supplying ICEB samples and providing full cooperation in making this research a success. His support has greatly contributed to the research conducted.
Notation
The following symbols are used in this paper:
- A
- surface area (m2);
- dT
- temperature difference (K);
- e
- thickness (m);
- L
- distance between the two isothermal planes (m);
- Q
- quantity of heat transported through the medium (J/s or W);
- R
- electrical resistance (Ω);
- S
- heat exchange surface (m2);
- T
- temperature (°C or K);
- U
- voltage (V); and
- λ
- thermal conductivity (W/m K).
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Published In
Journal of Architectural Engineering
Volume 29 • Issue 3 • September 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Aug 11, 2022
Accepted: Apr 6, 2023
Published online: Jun 2, 2023
Published in print: Sep 1, 2023
Discussion open until: Nov 2, 2023
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