Thermo-mechanical characterization of a building material based on Typha Australis

Dieye, Younouss; Sabourin, Vincent; Faye, M.; Thiam, Ababacar; Adj, M.; Azilinon, Dorothé

doi:10.1016/j.jobe.2016.12.007

Cited by 48 publications

(21 citation statements)

References 15 publications

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“…Furthermore, Ramanaiah et al (2011) studying thermal behavior of cattail reinforced polyester composites reported a similar trend with thermal conductivity values between 0.32-0.39 W/mK at a fiber volume fraction between 0.15-0.32. A close thermal conductivity value of 0.16 W/mK at 85% clay was reported by Dieye et al (2017) while investigating the effects of binder (clay) weight on the thermal conductivity of Typha australis fiber reinforced composites.…”

Section: Effects Of Alkali Treatment On Thermal Conductivity Of the Hsupporting

confidence: 71%

Peer Review #2 of "Effects of alkali treatment on the mechanical and thermal properties of sisal/cattail polyester commingled composites (v0.1)"

2020

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Environmental and energy conservation pressure has led to a dramatic increase in the need for economically feasible lightweight materials that can be better substitutes for nonbiodegradable materials in reinforced composites. In this study, the mechanical and thermal properties of polyester resin composites hybridized with a blend of untreated and alkali treated sisal (Agave sisalana) and cattail (Typha angustifolia) fibers were evaluated. Composites were fabricated by a hand lay-up technique at an optimal hybrid fiber weight fraction of 20 wt% and a constant sisal/cattail fiber blend ratio of 75/25. Flexural, tensile, compressive and impact strengths and moduli, as well as thermal conductivity of the composites were evaluated following ASTM and ISO test methods. Analytical results indicated that alkali pre-treatment of the fibers enhanced the mechanical properties of the hybrid polyester composites though only marginal differences were recorded in the thermal conductivity of the composites fabricated with treated and untreated fiber blends. Morphological examination revealed that the major failure modes were fiber pull-outs and fiber fracture in composites fabricated with untreated and treated fiber blends respectively. The composites produced could find non-structural applications as ceiling boards, electronic and food packaging materials but their properties such as wettability, crystallinity, flammability and other thermal properties need to be further investigated.

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Section: Effects Of Alkali Treatment On Thermal Conductivity Of the Hsupporting

confidence: 71%

Peer Review #2 of "Effects of alkali treatment on the mechanical and thermal properties of sisal/cattail polyester commingled composites (v0.1)"

2020

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“…The thermal conductivity values of Typha –clay material found in the literature vary from 0.117 to 0.153 W m −1 K −1 for 77%–85% in weight of clay, while thermal effusivity rises from 228.9 to 300 J m −2 °C −1 s −2 (Dieye et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…Concerning Typha fibers, previous investigations have been carried out to elaborate Typha–clay and Typha–cement mixtures (Diatta et al, 2011; Diaw et al, 2016; Dieye et al, 2017). Results show that thermal behavior of composite made of crushed fibers of Typha and clay (75 wt.%) has low thermal conductivity ranging from 0.117 to 0.153 W m −1 K −1 (Dieye et al, 2017). However, there is no information about hygric performance of such materials in the literature.…”

Section: Introductionmentioning

confidence: 99%

Hygrothermal performance of various Typha–clay composite

Niang

Maalouf

Moussa

et al. 2018

Journal of Building Physics

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This article deals with the influence of both morphology and amount of Typha on hygrothermal behavior of a Typha-clay composite for building application. An agromaterial containing the fiber mix of Typha Australis and clay was made in three samples: three fiber mixtures were prepared with different amounts Typha and cut type (transversal or longitudinal). The physical properties of these materials were studied in terms of porosity, apparent and absolute density, thermal conductivity, and hygric properties. Results show a real impact of the Typha fraction type and its volume content on hygrothermal properties of the studied material due to the porosity. The transversal fraction of Typha (80% in volume weight) seems to be the optimal composition for a better hygrothermal behavior.

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“…Our study will focus on the exploitation of this plant as bio-sourced and isolation materials. A characterization study of this material has been done by some researchers [8][9]. Our simulation has been done with Trnsys, a dynamic thermal simulation software that has been used by several researchers around the world to evaluate the thermal effects of buildings [10].…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of biosourced materials on Buildings: The case of Typha Australis

Abbassi

Kane

et al. 2020

MATEC Web Conf.

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Developing countries are facing population growth, which leads, on the one hand, to increased requirements for buildings and, on the other hand, to the depletion of fossil fuels along with exposure, of people living in those areas, to some detrimental consequences of climate change. Because of these factors, we propose approaches to control energy consumption in buildings. In some countries, the architectures adopted are not adequate to the environment and climate, resulting in discomfort in those buildings, in such circumstances, residents resort to the use of energy systems, such as heating, ventilation, and air conditioning, which leads to exorbitant electricity bills. Housing consumes 40% of the world's energy and is responsible for a third of greenhouse gas emissions. Optimizing energy needs in buildings is a solution to overcome these problems. For this purpose, there are solutions such as: the design of the building characterized by its shape and envelope, while using less energy-consuming equipment. For several years, the building materials sector has been developing with a particular focus on bio-source materials, which are generally materials with good thermal performance. In order to highlight the thermal performance of bio-source materials, we will study the case of Typha Australis which is a plant of the Typhaceae family that grows abundantly in an aquatic environment mainly in the Senegal River valley.Recent studies showed that Typha Australis has good thermal insulation properties. In order to determine the impact of Typha Australis on a building, a dynamic thermal simulation was carried out using the Trnsys software according to specific scenarios, the Typha was mixed with other local materials and used as a wall insulation panel, the result of the study shows that this fiber has allowed us to optimize energy consumption in a building. Mixing Typha with other materials (e. g. clay) is a promising solution for energy efficiency in buildings.

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Thermo-mechanical characterization of a building material based on Typha Australis

Cited by 48 publications

References 15 publications

Peer Review #2 of "Effects of alkali treatment on the mechanical and thermal properties of sisal/cattail polyester commingled composites (v0.1)"

Peer Review #2 of "Effects of alkali treatment on the mechanical and thermal properties of sisal/cattail polyester commingled composites (v0.1)"

Hygrothermal performance of various Typha–clay composite

Thermal performance of biosourced materials on Buildings: The case of Typha Australis

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