The thermophysical characterization of construction materials is a fundamental area of research in building physics and energy efficiency. Over the years, various experimental techniques have been developed to determine key thermal properties such as thermal conductivity, diffusivity, and heat capacity. While these methods have provided valuable results, their accuracy and applicability remain limited in many cases due to uncertainties in the input parameters and assumptions regarding material homogeneity and saturation levels. These limitations often require researchers to implement additional experimental protocols to refine the measurements and adapt them to real-world conditions. This paper proposes a new experimental method that builds on two well-established techniques: the "hot wire" method and the "guarded hot probe" method. The proposed technique is specifically designed for the characterization of unsaturated porous construction materials, which pose particular challenges due to their complex structure and moisture content. It enables the reliable measurement of apparent thermal conductivity under variable saturation conditions and offers greater adaptability in laboratory and field settings. Experimental thermal tests were performed on a typical construction material to validate the method. The results show that the new technique improves the precision of thermophysical parameter estimation and provides a more accurate reflection of material behaviour under realistic conditions. This approach contributes to the on-going development of energy-efficient construction practices by supporting the selection and optimization of materials based on scientifically validated thermal performance criteria.
| Published in | World Journal of Materials Science and Technology (Volume 2, Issue 4) |
| DOI | 10.11648/j.wjmst.20250204.12 |
| Page(s) | 54-61 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Thermo Physical Characterization, Stone, Hot Wire, Thermal Conductivity
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APA Style
Filali, M., Filali, F., Yassine, H. (2025). Development and Validation of an Experimental Method for the Thermophysical Characterization of Thermal Conductivity in Porous Building Materials: Application to Stone in the Context of Sustainable Construction. World Journal of Materials Science and Technology, 2(4), 54-61. https://doi.org/10.11648/j.wjmst.20250204.12
ACS Style
Filali, M.; Filali, F.; Yassine, H. Development and Validation of an Experimental Method for the Thermophysical Characterization of Thermal Conductivity in Porous Building Materials: Application to Stone in the Context of Sustainable Construction. World J. Mater. Sci. Technol. 2025, 2(4), 54-61. doi: 10.11648/j.wjmst.20250204.12
AMA Style
Filali M, Filali F, Yassine H. Development and Validation of an Experimental Method for the Thermophysical Characterization of Thermal Conductivity in Porous Building Materials: Application to Stone in the Context of Sustainable Construction. World J Mater Sci Technol. 2025;2(4):54-61. doi: 10.11648/j.wjmst.20250204.12
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Download@article{10.11648/j.wjmst.20250204.12,
author = {Mohamed Filali and Fatima Filali and Hasna Yassine},
title = {Development and Validation of an Experimental Method for the Thermophysical Characterization of Thermal Conductivity in Porous Building Materials: Application to Stone in the Context of Sustainable Construction},
journal = {World Journal of Materials Science and Technology},
volume = {2},
number = {4},
pages = {54-61},
doi = {10.11648/j.wjmst.20250204.12},
url = {https://doi.org/10.11648/j.wjmst.20250204.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjmst.20250204.12},
abstract = {The thermophysical characterization of construction materials is a fundamental area of research in building physics and energy efficiency. Over the years, various experimental techniques have been developed to determine key thermal properties such as thermal conductivity, diffusivity, and heat capacity. While these methods have provided valuable results, their accuracy and applicability remain limited in many cases due to uncertainties in the input parameters and assumptions regarding material homogeneity and saturation levels. These limitations often require researchers to implement additional experimental protocols to refine the measurements and adapt them to real-world conditions. This paper proposes a new experimental method that builds on two well-established techniques: the "hot wire" method and the "guarded hot probe" method. The proposed technique is specifically designed for the characterization of unsaturated porous construction materials, which pose particular challenges due to their complex structure and moisture content. It enables the reliable measurement of apparent thermal conductivity under variable saturation conditions and offers greater adaptability in laboratory and field settings. Experimental thermal tests were performed on a typical construction material to validate the method. The results show that the new technique improves the precision of thermophysical parameter estimation and provides a more accurate reflection of material behaviour under realistic conditions. This approach contributes to the on-going development of energy-efficient construction practices by supporting the selection and optimization of materials based on scientifically validated thermal performance criteria.},
year = {2025}
}
TY - JOUR T1 - Development and Validation of an Experimental Method for the Thermophysical Characterization of Thermal Conductivity in Porous Building Materials: Application to Stone in the Context of Sustainable Construction AU - Mohamed Filali AU - Fatima Filali AU - Hasna Yassine Y1 - 2025/12/30 PY - 2025 N1 - https://doi.org/10.11648/j.wjmst.20250204.12 DO - 10.11648/j.wjmst.20250204.12 T2 - World Journal of Materials Science and Technology JF - World Journal of Materials Science and Technology JO - World Journal of Materials Science and Technology SP - 54 EP - 61 PB - Science Publishing Group SN - 3070-1546 UR - https://doi.org/10.11648/j.wjmst.20250204.12 AB - The thermophysical characterization of construction materials is a fundamental area of research in building physics and energy efficiency. Over the years, various experimental techniques have been developed to determine key thermal properties such as thermal conductivity, diffusivity, and heat capacity. While these methods have provided valuable results, their accuracy and applicability remain limited in many cases due to uncertainties in the input parameters and assumptions regarding material homogeneity and saturation levels. These limitations often require researchers to implement additional experimental protocols to refine the measurements and adapt them to real-world conditions. This paper proposes a new experimental method that builds on two well-established techniques: the "hot wire" method and the "guarded hot probe" method. The proposed technique is specifically designed for the characterization of unsaturated porous construction materials, which pose particular challenges due to their complex structure and moisture content. It enables the reliable measurement of apparent thermal conductivity under variable saturation conditions and offers greater adaptability in laboratory and field settings. Experimental thermal tests were performed on a typical construction material to validate the method. The results show that the new technique improves the precision of thermophysical parameter estimation and provides a more accurate reflection of material behaviour under realistic conditions. This approach contributes to the on-going development of energy-efficient construction practices by supporting the selection and optimization of materials based on scientifically validated thermal performance criteria. VL - 2 IS - 4 ER -
Energy and Ambiances Laboratory, National School of Architecture, Rabat, Morocco
Molecular Chemistry Materials and Catalysis Laboratory, Sultan MoulaySlimane University, Beni-Mellal, Morocco
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