Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers

This paper presents an experimental investigation of the hygrothermal and mechanical properties of innovative mortar mixtures reinforced with natural fibers. Fibers extracted from palm stems (PS) and hemp (HF) were evaluated at different percentages. Scanning electron microscope (SEM) observations s...

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Autores principales:	Younes Zouaoui, Ferhat Benmahiddine, Ammar Yahia, Rafik Belarbi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	natural fibers morphology chemical treatments fiber mortar moisture buffer value hygrothermal properties Technology T
Acceso en línea:	https://doaj.org/article/475c77a04dc94bc5988cf82cfcaa8e98
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spelling	oai:doaj.org-article:475c77a04dc94bc5988cf82cfcaa8e982021-11-11T15:54:33ZHygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers10.3390/en142171101996-1073https://doaj.org/article/475c77a04dc94bc5988cf82cfcaa8e982021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7110https://doaj.org/toc/1996-1073This paper presents an experimental investigation of the hygrothermal and mechanical properties of innovative mortar mixtures reinforced with natural fibers. Fibers extracted from palm stems (PS) and hemp (HF) were evaluated at different percentages. Scanning electron microscope (SEM) observations showed that the PS fibers have rough surfaces and very complex microstructures. Prior to their incorporation into the mortar, the fibers were subjected to different treatments to reduce their hydrophilic character. The employed treatments showed good efficiency in reducing the water absorption of both PS and HF fiber types. Furthermore, the mortar mixtures incorporating these fibers exhibited low thermal conductivity and excellent moisture buffering capacity. Indeed, the moisture buffer value (MBV) of the investigated mixtures ranged between 2.7 [g/(%HR·m<sup>2</sup>)] and 3.1 [g/(%HR·m<sup>2</sup>)], hence providing them excellent moisture regulator character. As expected, the fiber mortar mixtures showed very high porosity and low compressive strength ranging between 0.6 and 0.9 MPa after 28 days of age. The low-environmental footprint materials developed in this study are intended for thermal insulation and building filling.Younes ZouaouiFerhat BenmahiddineAmmar YahiaRafik BelarbiMDPI AGarticlenatural fibersmorphologychemical treatmentsfiber mortarmoisture buffer valuehygrothermal propertiesTechnologyTENEnergies, Vol 14, Iss 7110, p 7110 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	natural fibers morphology chemical treatments fiber mortar moisture buffer value hygrothermal properties Technology T
spellingShingle	natural fibers morphology chemical treatments fiber mortar moisture buffer value hygrothermal properties Technology T Younes Zouaoui Ferhat Benmahiddine Ammar Yahia Rafik Belarbi Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
description	This paper presents an experimental investigation of the hygrothermal and mechanical properties of innovative mortar mixtures reinforced with natural fibers. Fibers extracted from palm stems (PS) and hemp (HF) were evaluated at different percentages. Scanning electron microscope (SEM) observations showed that the PS fibers have rough surfaces and very complex microstructures. Prior to their incorporation into the mortar, the fibers were subjected to different treatments to reduce their hydrophilic character. The employed treatments showed good efficiency in reducing the water absorption of both PS and HF fiber types. Furthermore, the mortar mixtures incorporating these fibers exhibited low thermal conductivity and excellent moisture buffering capacity. Indeed, the moisture buffer value (MBV) of the investigated mixtures ranged between 2.7 [g/(%HR·m<sup>2</sup>)] and 3.1 [g/(%HR·m<sup>2</sup>)], hence providing them excellent moisture regulator character. As expected, the fiber mortar mixtures showed very high porosity and low compressive strength ranging between 0.6 and 0.9 MPa after 28 days of age. The low-environmental footprint materials developed in this study are intended for thermal insulation and building filling.
format	article
author	Younes Zouaoui Ferhat Benmahiddine Ammar Yahia Rafik Belarbi
author_facet	Younes Zouaoui Ferhat Benmahiddine Ammar Yahia Rafik Belarbi
author_sort	Younes Zouaoui
title	Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
title_short	Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
title_full	Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
title_fullStr	Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
title_full_unstemmed	Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers
title_sort	hygrothermal and mechanical behaviors of fiber mortar: comparative study between palm and hemp fibers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/475c77a04dc94bc5988cf82cfcaa8e98
work_keys_str_mv	AT youneszouaoui hygrothermalandmechanicalbehaviorsoffibermortarcomparativestudybetweenpalmandhempfibers AT ferhatbenmahiddine hygrothermalandmechanicalbehaviorsoffibermortarcomparativestudybetweenpalmandhempfibers AT ammaryahia hygrothermalandmechanicalbehaviorsoffibermortarcomparativestudybetweenpalmandhempfibers AT rafikbelarbi hygrothermalandmechanicalbehaviorsoffibermortarcomparativestudybetweenpalmandhempfibers
_version_	1718432854344466432

Hygrothermal and Mechanical Behaviors of Fiber Mortar: Comparative Study between Palm and Hemp Fibers

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