Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor)
Artisans in the Sudano-Sahelian zone of Cameroon make abundant use of adobes formulated from red millet fibers for the construction of houses. However, scientific data are missing in the literature to provide necessary information for the understanding of thermomechanical characteristics and durabil...
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doaj-0387301cbf66420f8c87933dc2066b722020-12-25T05:09:38ZengElsevierCase Studies in Construction Materials2214-50952020-12-0113e00422Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor)Colbert Babé0Dieudonné Kaoga Kidmo1Ahmat Tom2Rachel Raïssa Ngono Mvondo3Raphaël Belinga Essama Boum4Noël Djongyang5Department of Renewable Energy, National Advanced School of Engineering of Maroua, University of Maroua, P.O. Box 46, Maroua, CameroonDepartment of Renewable Energy, National Advanced School of Engineering of Maroua, University of Maroua, P.O. Box 46, Maroua, CameroonDepartment of Energy Engineering, University Institute of Technology, University of Ngaoundere, P.O. Box 455, Ngaoundere, CameroonUniversity Institute of Wood Technology, the University of Yaoundé I, P.O. Box 306, Mbalmayo, CameroonLocal Materials Promotion Agency, P.O. Box 2396, Yaoundé, CameroonDepartment of Renewable Energy, National Advanced School of Engineering of Maroua, University of Maroua, P.O. Box 46, Maroua, Cameroon; Corresponding author.Artisans in the Sudano-Sahelian zone of Cameroon make abundant use of adobes formulated from red millet fibers for the construction of houses. However, scientific data are missing in the literature to provide necessary information for the understanding of thermomechanical characteristics and durability of these materials. Adobe bricks used in this paper are formulated from the soil with 0, 1, 2, 3, and 4 % of millet waste. The samples are characterized by geotechnical, mechanical, thermal, and durability laboratory tests. Experimental measurements of mechanical and thermal characteristics show that millet fibers can contribute to the improvement of compressive strength and thermal conductivity by 38 and 23 % corresponding respectively to the incorporation of 2 and 4 % of millet fibers. Moreover, to understand the durability of the samples, the assessment of the behavior of adobe bricks exposed to water and friction (abrasion) shows that the incorporation of 2–4 % of millet fibers in the clay matrices, enabled us to obtain more resistant composites compared to the pure matrix. As a result, millet fibers, by their good adhesion to the clay matrix, act as reinforcement by contributing to the improvement of the thermomechanical characteristics and the durability of adobe bricks. Thus, adobe bricks reinforced with millet fibers can be used without damage, and cheap as building materials with a contribution to thermal comfort.http://www.sciencedirect.com/science/article/pii/S2214509520300942AdobesFibersThermal conductivityDurabilityMechanical characteristicsBuilding material |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Colbert Babé Dieudonné Kaoga Kidmo Ahmat Tom Rachel Raïssa Ngono Mvondo Raphaël Belinga Essama Boum Noël Djongyang |
spellingShingle |
Colbert Babé Dieudonné Kaoga Kidmo Ahmat Tom Rachel Raïssa Ngono Mvondo Raphaël Belinga Essama Boum Noël Djongyang Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) Case Studies in Construction Materials Adobes Fibers Thermal conductivity Durability Mechanical characteristics Building material |
author_facet |
Colbert Babé Dieudonné Kaoga Kidmo Ahmat Tom Rachel Raïssa Ngono Mvondo Raphaël Belinga Essama Boum Noël Djongyang |
author_sort |
Colbert Babé |
title |
Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
title_short |
Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
title_full |
Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
title_fullStr |
Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
title_full_unstemmed |
Thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
title_sort |
thermomechanical characterization and durability of adobes reinforced with millet waste fibers (sorghum bicolor) |
publisher |
Elsevier |
series |
Case Studies in Construction Materials |
issn |
2214-5095 |
publishDate |
2020-12-01 |
description |
Artisans in the Sudano-Sahelian zone of Cameroon make abundant use of adobes formulated from red millet fibers for the construction of houses. However, scientific data are missing in the literature to provide necessary information for the understanding of thermomechanical characteristics and durability of these materials. Adobe bricks used in this paper are formulated from the soil with 0, 1, 2, 3, and 4 % of millet waste. The samples are characterized by geotechnical, mechanical, thermal, and durability laboratory tests. Experimental measurements of mechanical and thermal characteristics show that millet fibers can contribute to the improvement of compressive strength and thermal conductivity by 38 and 23 % corresponding respectively to the incorporation of 2 and 4 % of millet fibers. Moreover, to understand the durability of the samples, the assessment of the behavior of adobe bricks exposed to water and friction (abrasion) shows that the incorporation of 2–4 % of millet fibers in the clay matrices, enabled us to obtain more resistant composites compared to the pure matrix. As a result, millet fibers, by their good adhesion to the clay matrix, act as reinforcement by contributing to the improvement of the thermomechanical characteristics and the durability of adobe bricks. Thus, adobe bricks reinforced with millet fibers can be used without damage, and cheap as building materials with a contribution to thermal comfort. |
topic |
Adobes Fibers Thermal conductivity Durability Mechanical characteristics Building material |
url |
http://www.sciencedirect.com/science/article/pii/S2214509520300942 |
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