Cargando…
Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers
The susceptibility of rendering mortars to cracking is a complex phenomenon. Fibers have been incorporated in mortars to ensure the durability of the render and can improve the flexural strength, fracture toughness, and impact resistance of the mortars. Aside from the better cracking performance of...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888458/ https://www.ncbi.nlm.nih.gov/pubmed/31698732 http://dx.doi.org/10.3390/ma12223648 |
_version_ | 1783475235624845312 |
---|---|
author | Maia Pederneiras, Cinthia Veiga, Rosário de Brito, Jorge |
author_facet | Maia Pederneiras, Cinthia Veiga, Rosário de Brito, Jorge |
author_sort | Maia Pederneiras, Cinthia |
collection | PubMed |
description | The susceptibility of rendering mortars to cracking is a complex phenomenon. Fibers have been incorporated in mortars to ensure the durability of the render and can improve the flexural strength, fracture toughness, and impact resistance of the mortars. Aside from the better cracking performance of fiber reinforced mortars, natural fibers have been a path to reducing the environmental impacts of construction materials. Recycling has high sustainability-related potential as it can both mitigate the amount of waste being inadequately disposed and reduce the consumption of natural raw materials. Studies on the incorporation of waste in civil engineering materials have been growing, and recycled fibers may be feasible to incorporate in mortars. Natural fibers are considered as a viable replacement for synthetic ones. Several studies have investigated vegetal fibers in cementitious composites. However, only a few have focused on the incorporation of waste animal-based fiber. The aim of this work is to analyze the feasibility of the use of natural sheep’s wool fibers on the reinforcement of mortars and in particular to improve their cracking behavior. For this purpose, two different binders were used: cement and cement-lime mortars were produced. The incorporation of 10% and 20% (in volume) of 1.5 cm and 3.0 cm wool fibers was analyzed. The results show that the incorporation of wool fibers increased the ductility of the mortars and improved their mechanical properties. |
format | Online Article Text |
id | pubmed-6888458 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68884582019-12-09 Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers Maia Pederneiras, Cinthia Veiga, Rosário de Brito, Jorge Materials (Basel) Article The susceptibility of rendering mortars to cracking is a complex phenomenon. Fibers have been incorporated in mortars to ensure the durability of the render and can improve the flexural strength, fracture toughness, and impact resistance of the mortars. Aside from the better cracking performance of fiber reinforced mortars, natural fibers have been a path to reducing the environmental impacts of construction materials. Recycling has high sustainability-related potential as it can both mitigate the amount of waste being inadequately disposed and reduce the consumption of natural raw materials. Studies on the incorporation of waste in civil engineering materials have been growing, and recycled fibers may be feasible to incorporate in mortars. Natural fibers are considered as a viable replacement for synthetic ones. Several studies have investigated vegetal fibers in cementitious composites. However, only a few have focused on the incorporation of waste animal-based fiber. The aim of this work is to analyze the feasibility of the use of natural sheep’s wool fibers on the reinforcement of mortars and in particular to improve their cracking behavior. For this purpose, two different binders were used: cement and cement-lime mortars were produced. The incorporation of 10% and 20% (in volume) of 1.5 cm and 3.0 cm wool fibers was analyzed. The results show that the incorporation of wool fibers increased the ductility of the mortars and improved their mechanical properties. MDPI 2019-11-06 /pmc/articles/PMC6888458/ /pubmed/31698732 http://dx.doi.org/10.3390/ma12223648 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Maia Pederneiras, Cinthia Veiga, Rosário de Brito, Jorge Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title | Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title_full | Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title_fullStr | Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title_full_unstemmed | Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title_short | Rendering Mortars Reinforced with Natural Sheep’s Wool Fibers |
title_sort | rendering mortars reinforced with natural sheep’s wool fibers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888458/ https://www.ncbi.nlm.nih.gov/pubmed/31698732 http://dx.doi.org/10.3390/ma12223648 |
work_keys_str_mv | AT maiapederneirascinthia renderingmortarsreinforcedwithnaturalsheepswoolfibers AT veigarosario renderingmortarsreinforcedwithnaturalsheepswoolfibers AT debritojorge renderingmortarsreinforcedwithnaturalsheepswoolfibers |