The use of sheep wool as a filler of cement in order to produce mortar or plaster involves several advantages for environment and energy. Moreover, it is considered as a waste and, therefore, its use is characterized by low cost. The aim of this paper is to evaluate the influence of wool fibers on thermal conductivity and mechanical properties of cement. The samples were prepared using wool fibers, obtained from a breed of Sicilian sheep, with three different lengths (i.e., 1, 6, and 20 mm). Furthermore, in order to evaluate the influence of fiber content, the samples were prepared by varying the fiber weight fraction. The thermal conductivity of the samples was analyzed by using a heat flow meter, whereas the mechanical behavior was studied through compressive tests. In order to validate the thermal measurements, on the experimental data, two theoretical models were applied. The experimental results showed that wool fibers can be used within cementitious matrices to obtain mortars or plasters with enhanced thermal insulation properties. Nevertheless, noticeable decrements in the compressive strength are also found. Therefore, it is needed to find a compromise between these two aspects

Fiore V., Di Bella G., Valenza A. (2020). Effect of Sheep Wool Fibers on Thermal Insulation and Mechanical Properties of Cement-Based Composites. JOURNAL OF NATURAL FIBERS, 17(10), 1532-1543 [10.1080/15440478.2019.1584075].

Effect of Sheep Wool Fibers on Thermal Insulation and Mechanical Properties of Cement-Based Composites

Fiore V.;Valenza A.
2020-01-01

Abstract

The use of sheep wool as a filler of cement in order to produce mortar or plaster involves several advantages for environment and energy. Moreover, it is considered as a waste and, therefore, its use is characterized by low cost. The aim of this paper is to evaluate the influence of wool fibers on thermal conductivity and mechanical properties of cement. The samples were prepared using wool fibers, obtained from a breed of Sicilian sheep, with three different lengths (i.e., 1, 6, and 20 mm). Furthermore, in order to evaluate the influence of fiber content, the samples were prepared by varying the fiber weight fraction. The thermal conductivity of the samples was analyzed by using a heat flow meter, whereas the mechanical behavior was studied through compressive tests. In order to validate the thermal measurements, on the experimental data, two theoretical models were applied. The experimental results showed that wool fibers can be used within cementitious matrices to obtain mortars or plasters with enhanced thermal insulation properties. Nevertheless, noticeable decrements in the compressive strength are also found. Therefore, it is needed to find a compromise between these two aspects
2020
Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali
Fiore V., Di Bella G., Valenza A. (2020). Effect of Sheep Wool Fibers on Thermal Insulation and Mechanical Properties of Cement-Based Composites. JOURNAL OF NATURAL FIBERS, 17(10), 1532-1543 [10.1080/15440478.2019.1584075].
File in questo prodotto:
File Dimensione Formato  
2019_Effect of Sheep Wool Fibers on Thermal Insulation and Mechanical Properties of Cement Based Composites.pdf

Solo gestori archvio

Tipologia: Versione Editoriale
Dimensione 2.06 MB
Formato Adobe PDF
2.06 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/399609
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 32
  • ???jsp.display-item.citation.isi??? 31
social impact