Renewable materials to reduce building heat loss: Characterization of date palm wood

Agoudjil, Boudjemaa; Benchabane, Adel; Boudenne, Abderrahim; Ibos, Laurent; Fois, Magali

doi:10.1016/j.enbuild.2010.10.014

Cited by 292 publications

(144 citation statements)

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“…Wang et al (2008) analyzed the effect of lignin on wood matrix and examined the dielectric properties of untreated and delignified wood before and after quenching from 50 Hz to 100 MHz at 20°C. Dielectric properties were widely used to explore the influence of various parameters and in particular moisture content on a series of materials of lignocellulosic composition (Tomppo et al 2009;Ramasamy and Moghtaderi 2010;Chilcott et al 2011;Agoudjil et al 2011). Recently, bionanocomposites based on poly (D, L-lactide) and cellulose nanowhiskers were investigated (Luiz de Paula et al 2011); a review by Jonoobi et al 2015 shows the variety of nanostructured cellulose extracted from various natural ressources and bioreinforced nanocomposites (Marianoa et al 2016).…”

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Dielectric and mechanical properties of various species of Madagascan woods

et al. 2017

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr Abstract The low-temperature molecular mobility of three different wood species was analyzed, with the two major constituents-cellulose and lignin-as reference. Mechanical and dielectric dynamic techniques were used. In order to observe the fine structure of the broad relaxation modes of wood, a very low-frequency analysis was carried out by thermostimulated current technique. Low-temperature relaxations of rosewood were assigned to low-temperature relaxations of cellulose. There was no dielectric response of lignin in rosewood. Contrarily, both cellulose and lignin responses were distinguished in ebony and varongy. Thermostimulated currents analyses exhibit the specific behavior of lignin in the various wood species. Moreover, the relaxation mode of cellulose observed at lower temperature remains localized in rosewood, while it tends to delocalize in varongy and ebony. The nature and intensity of physical interactions that induce variation of phase miscibility might be responsible for the observed differences. Even at the scale of the c relaxation, physical interactions modify molecular mobility.

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Dielectric and mechanical properties of various species of Madagascan woods

et al. 2017

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“…Dans le but de répondre à cette demande, plusieurs travaux de recherche ont été consacrés à la valorisation de la tige du palmier dattier [1][2][3][4]. Ces travaux ont concernés son utilisation dans le domaine de l'isolation thermique des bâtiments [1,2] et dans le domaine de la construction en général [3], ou dans la fabrication de composites boisciment [4].…”

Section: Cmss-2017unclassified

“…Ces travaux ont concernés son utilisation dans le domaine de l'isolation thermique des bâtiments [1,2] et dans le domaine de la construction en général [3], ou dans la fabrication de composites boisciment [4].…”

Section: Cmss-2017unclassified

Some physical properties of the date palm stem

et al. 2018

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Abstract:The main objective of this study was to test some technological performances of date palm stem (Phoenix dactylifera L.) from the region of Marrakech in Morocco with a view to its use in housing construction in southern Moroccan regions. Physical characteristics were determined according to French AFNOR standards. The samples used were respectively 20 mm × 20 mm × 20 mm in the longitudinal, radial and tangential directions. All the results obtained were the average of the measurements on 50 samples. The results obtained showed that the moisture content has an average value of 15 % at the center of stem and 18 % at the periphery and the infradensity has a value of 0.18 g / cm3 in the center and 0.42 g / cm3 in the periphery. For samples from the center, the tangential, radial and longitudinal shrinkage were respectively 2.02 %, 1.77 %, and 0.42 %, while on the periphery of the stem the tangential, radial and longitudinal shrinkage were respectively 3.41 %, 2.98 % and 0.34 %. These results showed that the stem center has better dimensional stability compared to the peripheral region of the stem. Keywords: Date palm, Phoenix dactylifera L., Moisture content, Infradensity, shrinkage. Quelques propriétés physiques de la tige du palmier dattierRésumé : L'objectif principal de cette étude était de tester quelques performances technologiques de la tige du palmier dattier (Phoenix dactylifera L.) de la région de Marrakech au Maroc en vue de son utilisation dans la construction d'habitat dans les régions du sud marocain. Des caractéristiques physiques ont été déterminées selon les normes françaises AFNOR. Les échantillons utilisés étaient respectivement de 20 mm × 20 mm × 20 mm dans les directions longitudinale, radiale et tangentielle. Tous les résultats obtenus étaient la moyenne des mesures sur 50 échantillons. Les résultats obtenus ont montré que l'humidité avait une valeur moyenne de 15 % au centre et 18 % à la périphérie de la tige et que l'infradensité avait une valeur de 0,18 g/cm 3 au centre et 0,42 g/cm 3 à la périphérie. Au centre de la tige le retrait tangentiel, radial et longitudinal avaient respectivement des valeurs de 2,02 % , 1,77% et de 0,42% tandis qu'à la périphérie de la tige, les retraits tangentiel, radial et longitudinal avaient respectivement des valeurs de 3,41 %, 2,98 % et 0,34 %. Ces résultats ont montré que le centre de la tige présentait une meilleure stabilité dimensionnelle par rapport à la périphérie.

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“…Thus the design was selected as reported that it would more suitable were coconut production is higher. agoudjil et al in [40] researched for Renewable material to reduce building heat loss using date palm wood. A three variety of date palm were selected and their thermo physical, chemical and dielectric properties were investigated.…”

Section: Literature Surveymentioning

confidence: 99%

A Review on the Usage of Agro Based Material for Developing Thermal Insulation

2017

IJAERD

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Renewable materials to reduce building heat loss: Characterization of date palm wood

Cited by 292 publications

References 32 publications

Dielectric and mechanical properties of various species of Madagascan woods

Dielectric and mechanical properties of various species of Madagascan woods

Some physical properties of the date palm stem

A Review on the Usage of Agro Based Material for Developing Thermal Insulation

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