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Mechanical and thermophysical properties of cement mortars including bio-based microencapsulated phase change materials

Article dans une revue avec comité de lecture
Author
GBEKOU, Franck Komi
1001571 Laboratoire Navier [NAVIER UMR 8205]
580722 Université Gustave Eiffel
BENZARTI, Karim
580722 Université Gustave Eiffel
1001571 Laboratoire Navier [NAVIER UMR 8205]
BOUDENNE, Abderrahim
25533 Centre d'Etudes et Recherches en Thermique, Environnement et Systèmes [Créteil] [CERTES EA 3481]
303005 Université Paris-Est [UPE]
EDDHAHAK, Anissa
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
DUC, Myriam
580722 Université Gustave Eiffel
581108 Sols, Roches et Ouvrages Géotechniques [GERS-SRO]

URI
http://hdl.handle.net/10985/22715
DOI
10.1016/j.conbuildmat.2022.129056
Date
2022-10
Journal
Construction and Building Materials

Abstract

This study investigates the mechanical and thermophysical performance of cement mortars incorporating microencapsulated phase change materials (mPCMs), which consist of an aqueous dispersion of 100% bio-based fine core–shell particles. A specific protocol was used to manufacture the mortar samples, which ensures a homogeneous particle distribution and prevents microcapsule leakage. The addition of mPCMs to the mortar causes both a decrease in density, an increase in porosity, and a substantial loss of mechanical strength. Conversely, hot-disk characterization revealed a large improvement in the thermal performance. The system containing 8 wt% mPCMs exhibits a good balance between its mechanical and thermal properties.

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