Water vapor properties of two hemp wools manufactured with different treatments

Hemp wools are environmentally friendly materials that are used for thermal insulation of building. These fibrous materials are the places of moisture transfer and storage that impact on thermal performances of the material. In this work, two kinds of hemp wool are studied: hemp wool with an organic...

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Veröffentlicht in:	Construction & building materials 2011-02, Vol.25 (2), p.1079-1085
Hauptverfasser:	Collet, Florence, Achchaq, Fouzia, Djellab, Karim, Marmoret, Laurent, Beji, Hassen
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Adsorption isotherm Building materials Construction materials Engineering Sciences Fibrous Green market Hemp Insulating material Insulating materials industry Isotherms Mechanics Moisture content Permeability Physics Plant fiber industry Porosity Sorption Thermal properties Thermics Water vapor Water vapor permeability Wool
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Beschreibung
Zusammenfassung:	Hemp wools are environmentally friendly materials that are used for thermal insulation of building. These fibrous materials are the places of moisture transfer and storage that impact on thermal performances of the material. In this work, two kinds of hemp wool are studied: hemp wool with an organic binder (called HW1) and hemp-cotton wool with a polyester binder (called HW2). The investigations are based on water vapor sorption and on water vapor permeability measurements. The two kinds of hemp wool show similar sorption isotherm with quite high values of water content. The water vapor permeability is quite high too.
ISSN:	0950-0618 1879-0526
DOI:	10.1016/j.conbuildmat.2010.06.069