[ UTILISATION DES MATERIAUX BIOSOURCES DANS L’ISOLALATION THERMIQUE DES HABITATIONS: CAS DE LA PAILLE DE RIZ ET DE LA NATTE DE ROSEAU ]
Volume 46, Issue 1, July 2025, Pages 97–111
Waibaye Adoum1, Bozabe Renonet Karka2, and Koivoudou Lacatus3
1 Department of Civil Engineering, National Advanced School of Public Works (ENSTP), N'Djamena, Chad
2 Département du Génie Civil, Ecole Nationale Supérieure des Travaux Publics (ENSTP), N’Djamena, Chad
3 Department of Civil Engineering, National Advanced School of Public Works (ENSTP), N'Djamena, Chad
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This work explores the use of innovative eco-friendly solutions from bio-based materials Sources such as rice straw and reed mat in the thermal insulation of buildings to optimize energy requirements and limit loss of ambient temperature inside homes. For this purpose, an experimental cell in clay brick of dimensions 1.60 m x 1.50 m x 1.55 m was built to highlight these materials. As for the cases of one of the vertical walls and the roof insulated with rice straw and reed mat, the results obtained on the vertical wall made of terracotta brick + reed + rice straw + reed + clay coating show that the surface transmission coefficient defined by U has a value of 0.24 W/m2K equal to the recommended limit value. This wall therefore has the thermal qualities of a good insulator. Which leads to the absence of water condensation in the wall and the hygrometry content is good and pleasant to human life as well as the summer comfort as a whole must be better. It appears that this wall has a strong thermal resistance and diffuses little heat from the outside to the inside. At the roof level, two cases were considered. One without insulation and the other with insulation. U of the non-insulated roof is 1.6 W/m2K, higher than the recommended limit value of 0.24 W/m2K. Once insulated, it is equal to 0.24 W/m2K. Based on the results of this parameter, we can conclude that the sheet metal roof, insulated with rice straw, acts as an insulator.
Author Keywords: Bio-source materials, rice straw, reed mat, insulation, thermal.
Volume 46, Issue 1, July 2025, Pages 97–111
Waibaye Adoum1, Bozabe Renonet Karka2, and Koivoudou Lacatus3
1 Department of Civil Engineering, National Advanced School of Public Works (ENSTP), N'Djamena, Chad
2 Département du Génie Civil, Ecole Nationale Supérieure des Travaux Publics (ENSTP), N’Djamena, Chad
3 Department of Civil Engineering, National Advanced School of Public Works (ENSTP), N'Djamena, Chad
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This work explores the use of innovative eco-friendly solutions from bio-based materials Sources such as rice straw and reed mat in the thermal insulation of buildings to optimize energy requirements and limit loss of ambient temperature inside homes. For this purpose, an experimental cell in clay brick of dimensions 1.60 m x 1.50 m x 1.55 m was built to highlight these materials. As for the cases of one of the vertical walls and the roof insulated with rice straw and reed mat, the results obtained on the vertical wall made of terracotta brick + reed + rice straw + reed + clay coating show that the surface transmission coefficient defined by U has a value of 0.24 W/m2K equal to the recommended limit value. This wall therefore has the thermal qualities of a good insulator. Which leads to the absence of water condensation in the wall and the hygrometry content is good and pleasant to human life as well as the summer comfort as a whole must be better. It appears that this wall has a strong thermal resistance and diffuses little heat from the outside to the inside. At the roof level, two cases were considered. One without insulation and the other with insulation. U of the non-insulated roof is 1.6 W/m2K, higher than the recommended limit value of 0.24 W/m2K. Once insulated, it is equal to 0.24 W/m2K. Based on the results of this parameter, we can conclude that the sheet metal roof, insulated with rice straw, acts as an insulator.
Author Keywords: Bio-source materials, rice straw, reed mat, insulation, thermal.
Abstract: (french)
Ces travaux explorent l’utilisation des solutions écologiques innovantes des matériaux bio-sources tels que la paille de riz et la natte de roseau dans l’isolation thermique des bâtiments afin d’optimiser le besoin en énergie et de limiter la déperdition de température ambiante à l’intérieur des maisons. A cet effet, une cellule expérimentale en brique cuite de terre de dimensions 1,60 m x 1,50 m x 1,55 m a été construite pour mettre en valeur ces matériaux. Quant aux cas de l’une des parois verticales et la toiture isolée à l’aide de la paille de riz et de la natte de roseau, les résultats obtenus sur la paroi verticale construite en brique de terre cuite + le roseau + paille de riz + roseau + enduit en argile montrent que le coefficient de transmission surfacique définie par U a une valeur de 0,24 W/m2K égale à la valeur limite recommandée. Cette paroi présente par conséquent des qualités thermiques d’un bon isolant. Ce qui conduit à l’absence de condensation d’eau dans le mur et la teneur en hygrométrie est bonne et agréable à la vie humaine ainsi que le confort d’été dans son ensemble doit être meilleur. Il apparait que cette paroi dispose d’une forte résistance thermique et diffuse peu la chaleur de l’extérieur vers l’intérieur. Au niveau de la toiture, deux cas ont été considérés. L’un sans isolation et l’autre avec isolation. U de la toiture non isolée est de 1,6 W/m2K, supérieur à la valeur limite égale à 0,24 W/m2K recommandée. Une fois isolée, il est égal à 0,24 W/m2K. Au vu des résultats de ce paramètre, nous pouvons conclure que la toiture en tôle, isolée à l’aide de la paille de riz assure le rôle d’un isolant.
Author Keywords: Matériaux bio-sources, paille de riz, natte de Roseau, isolation, thermique.
How to Cite this Article
Waibaye Adoum, Bozabe Renonet Karka, and Koivoudou Lacatus, “USE OF BIO-SOURCE MATERIALS IN THE THERMAL INSULATION OF DWELLINGS: CASE OF RICE STRAW AND REED MAT,” International Journal of Innovation and Applied Studies, vol. 46, no. 1, pp. 97–111, July 2025.
