KARECHE, Abdelhak (2020) Durabilité et dégradation des composites bio-sourcés à base de bois de palmier dattier. Doctoral thesis, Université de Batna 2.
|
Text
Thèse doctorat A KARECHE.pdf Download (7MB) | Preview |
Abstract
The main objective of this work is to contribute to the valorization of natural and local resources, such as date palm wood and cement mortar, in order to integrate them in the field of thermal insulation of buildings. This thesis focuses on the experimental study of the durability and degradation properties of the bio-sourced composite prepared by mixing cement mortar and date palm fibers for use in thermal insulation applications for thermal buildings. Date palm wood (Phoenix dactylifera L.) harvested from oases of Laghrous (Biskra-Algeria) was used in the form of fine fiber, with an average diameter of 3 mm. The results obtained show that the composite reinforced with date palm fiber has many advantages: lightness, good dimensional stability and acoustic resistance, low thermal conductivity, clear thermogravimetry and favorable compressive and flexural strengths. In addition, the influence of fiber content on the physical, mechanical and thermal properties of the composite is more significant with the high fiber concentrations. Indeed, for fiber concentrations equal to 10% and 15%, from point of view of durability, the composites have always maintained their thermal and mechanical requirements of the building materials and they could be used as bio-sourced composite materials for energy efficiency in the habitat. However, the cement mortars are without the fibers, and that it introduced small amounts of date palm fibers (i.e. 5%) cannot resist to different types of degradation. Keywords: Date palm wood, building, bio-sourced materials, durability, degradation.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Subjects: | Technologie > Génie mécanique |
| Divisions: | Faculté de technologie > Département de génie mécanique |
| Date Deposited: | 03 Jan 2021 10:13 |
| Last Modified: | 03 Jan 2021 10:13 |
| URI: | http://eprints.univ-batna2.dz/id/eprint/1889 |
Actions (login required)
 |
View Item |
