Cargando…

Bio-Fibres as a Reinforcement of Gypsum Composites

Three series of tests performed on fibre-reinforced gypsum composites are described herein. Sheep wool fibres and hemp fibres were used as reinforcement. The aim was to evaluate the capability of these biomaterials to enhance the fracture toughness of the gypsum matrix. The mechanical properties wer...

Descripción completa

Detalles Bibliográficos
Autores principales: Fantilli, Alessandro P., Jóźwiak-Niedźwiedzka, Daria, Denis, Piotr
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432728/
https://www.ncbi.nlm.nih.gov/pubmed/34500919
http://dx.doi.org/10.3390/ma14174830
_version_ 1783751226140131328
author Fantilli, Alessandro P.
Jóźwiak-Niedźwiedzka, Daria
Denis, Piotr
author_facet Fantilli, Alessandro P.
Jóźwiak-Niedźwiedzka, Daria
Denis, Piotr
author_sort Fantilli, Alessandro P.
collection PubMed
description Three series of tests performed on fibre-reinforced gypsum composites are described herein. Sheep wool fibres and hemp fibres were used as reinforcement. The aim was to evaluate the capability of these biomaterials to enhance the fracture toughness of the gypsum matrix. The mechanical properties were measured by means of flexural tests on small specimens, whereas scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction were used to analyse the microstructure and composition of the fibres and of the gypsum composites. As a result, wool fibres were shown to improve the mechanical performance of the gypsum matrix, better than hemp fibres. This is due to the high adhesion at the interface of the fibre and gypsum matrix, because the latter tends to roughen the surface of the wool and, consequently to increase the bond strength. This preliminary research carried out shows that this type of biofiber—a waste material—can be considered a promising building material in sustainable and environmentally friendly engineering.
format Online
Article
Text
id pubmed-8432728
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-84327282021-09-11 Bio-Fibres as a Reinforcement of Gypsum Composites Fantilli, Alessandro P. Jóźwiak-Niedźwiedzka, Daria Denis, Piotr Materials (Basel) Article Three series of tests performed on fibre-reinforced gypsum composites are described herein. Sheep wool fibres and hemp fibres were used as reinforcement. The aim was to evaluate the capability of these biomaterials to enhance the fracture toughness of the gypsum matrix. The mechanical properties were measured by means of flexural tests on small specimens, whereas scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction were used to analyse the microstructure and composition of the fibres and of the gypsum composites. As a result, wool fibres were shown to improve the mechanical performance of the gypsum matrix, better than hemp fibres. This is due to the high adhesion at the interface of the fibre and gypsum matrix, because the latter tends to roughen the surface of the wool and, consequently to increase the bond strength. This preliminary research carried out shows that this type of biofiber—a waste material—can be considered a promising building material in sustainable and environmentally friendly engineering. MDPI 2021-08-25 /pmc/articles/PMC8432728/ /pubmed/34500919 http://dx.doi.org/10.3390/ma14174830 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fantilli, Alessandro P.
Jóźwiak-Niedźwiedzka, Daria
Denis, Piotr
Bio-Fibres as a Reinforcement of Gypsum Composites
title Bio-Fibres as a Reinforcement of Gypsum Composites
title_full Bio-Fibres as a Reinforcement of Gypsum Composites
title_fullStr Bio-Fibres as a Reinforcement of Gypsum Composites
title_full_unstemmed Bio-Fibres as a Reinforcement of Gypsum Composites
title_short Bio-Fibres as a Reinforcement of Gypsum Composites
title_sort bio-fibres as a reinforcement of gypsum composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432728/
https://www.ncbi.nlm.nih.gov/pubmed/34500919
http://dx.doi.org/10.3390/ma14174830
work_keys_str_mv AT fantillialessandrop biofibresasareinforcementofgypsumcomposites
AT jozwiakniedzwiedzkadaria biofibresasareinforcementofgypsumcomposites
AT denispiotr biofibresasareinforcementofgypsumcomposites