Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings

This paper presents the results of a laboratory investigation into the hygric properties and moisture buffering performance of hemp-starch composite panels designed for building applications. Composite panels were produced by bonding hemp shiv with wheat starch as a binder. Two types of hemp shiv we...

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Main Authors: Chadi Maalouf, Benitha Sandrine Umurigirwa, Nicolas Viens, Mohammed Lachi, Ton Hoang Mai
Format: Article
Language:English
Published: North Carolina State University 2014-11-01
Series:BioResources
Subjects:
Online Access:http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_336_Maalouf_Hygric_Behaviour_Moisture_Buffering
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author Chadi Maalouf
Benitha Sandrine Umurigirwa
Nicolas Viens
Mohammed Lachi
Ton Hoang Mai
author_facet Chadi Maalouf
Benitha Sandrine Umurigirwa
Nicolas Viens
Mohammed Lachi
Ton Hoang Mai
author_sort Chadi Maalouf
collection DOAJ
description This paper presents the results of a laboratory investigation into the hygric properties and moisture buffering performance of hemp-starch composite panels designed for building applications. Composite panels were produced by bonding hemp shiv with wheat starch as a binder. Two types of hemp shiv were tested: chemically processed shiv with enhanced adhesion between fibers and starch matrix, and non-treated shiv. The panels were then characterised in terms of their hygroscopic properties (sorption curve and vapour diffusion resistance factor) and their moisture buffering performance (moisture buffering value, MBV). The determination of theoretical MBV was based on the effusivity of the material, which is obtained from its basic hygroscopic characterisation. The results show that both panels are excellent hydric regulators that can be used to improve indoor hygrothermal comfort by buffering indoor relative humidity variations.
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spelling doaj.art-66e8b528840f468083642949f91e2f992022-12-21T21:59:50ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-11-0110133634710.15376/biores.10.1.336-347Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for BuildingsChadi Maalouf0Benitha Sandrine Umurigirwa1Nicolas Viens2Mohammed Lachi3Ton Hoang Mai4 GRESPI, University of Reims; France GRESPI, University of Reims; France GRESPI, University of Reims; France GRESPI, University of Reims; France GRESPI, University of Reims; FranceThis paper presents the results of a laboratory investigation into the hygric properties and moisture buffering performance of hemp-starch composite panels designed for building applications. Composite panels were produced by bonding hemp shiv with wheat starch as a binder. Two types of hemp shiv were tested: chemically processed shiv with enhanced adhesion between fibers and starch matrix, and non-treated shiv. The panels were then characterised in terms of their hygroscopic properties (sorption curve and vapour diffusion resistance factor) and their moisture buffering performance (moisture buffering value, MBV). The determination of theoretical MBV was based on the effusivity of the material, which is obtained from its basic hygroscopic characterisation. The results show that both panels are excellent hydric regulators that can be used to improve indoor hygrothermal comfort by buffering indoor relative humidity variations.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_336_Maalouf_Hygric_Behaviour_Moisture_BufferingHempStarchGreen materialsHydric propertiesMoisture buffering
spellingShingle Chadi Maalouf
Benitha Sandrine Umurigirwa
Nicolas Viens
Mohammed Lachi
Ton Hoang Mai
Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
BioResources
Hemp
Starch
Green materials
Hydric properties
Moisture buffering
title Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
title_full Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
title_fullStr Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
title_full_unstemmed Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
title_short Study of the Hygric Behaviour and Moisture Buffering Performance of a Hemp–Starch Composite Panel for Buildings
title_sort study of the hygric behaviour and moisture buffering performance of a hemp starch composite panel for buildings
topic Hemp
Starch
Green materials
Hydric properties
Moisture buffering
url http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_336_Maalouf_Hygric_Behaviour_Moisture_Buffering
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