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A. Majumder¹, F. Stochino¹, M. Valdes¹, A. Frattolillo¹, G. Concu¹, M. Pepe² and E. Martinelli²

¹Department of Civil, Environmental Engineering and Architecture, University of Cagliari, Italy
²Department of Civil Engineering, University of Salerno, Italy

A. Majumder, F. Stochino, M. Valdes, A. Frattolillo, G. Concu, M. Pepe, E. Martinelli, "Sheep Wool Composite Mortar for Thermo-Mechanical Retrofitting", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 11.2, 2025,

Keywords: thermo-mechanical retrofitting, thermo-mechanical properties, composite mortar, sheep wool, natural fiber, circular economy.

Abstract

The construction sector plays a significant role in heavy resource consumption and waste production, directly or indirectly leading to environmental pollution or ecosystem disruption. In efforts to reduce the sector’s carbon footprint and combat climate change's effects, the use of sustainable and eco-friendly building materials is gaining importance. This study highlights the integration of locally available (Sardinian) sheep wool fibres into mortar as an alternative construction product. Experimental findings indicate that incorporating sheep wool enhances the flexural strength of the mortar, suggesting improved durability under bending forces compared to conventional mortar mixtures. However, this addition results in a slight reduction in both compressive strength and thermal conductivity. While a decrease in compressive strength may suggest limitations for specific load-bearing uses, the lower thermal conductivity indicates better insulation properties. Notably, this improvement in thermal performance highlights the boost in the insulation property of the composite mortar. The results show that the composite mortar fabricated with sheep wool fiber can provide an optimum balance between structural performance and improved insulation properties, if selected for integrated retrofitting.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 10 PROCEEDINGS OF THE EIGHTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 11.2 Sheep Wool Composite Mortar for Thermo-Mechanical Retrofitting A. Majumder¹, F. Stochino¹, M. Valdes¹, A. Frattolillo¹, G. Concu¹, M. Pepe² and E. Martinelli² ¹Department of Civil, Environmental Engineering and Architecture, University of Cagliari, Italy ²Department of Civil Engineering, University of Salerno, Italy Full Bibliographic Reference for this paper A. Majumder, F. Stochino, M. Valdes, A. Frattolillo, G. Concu, M. Pepe, E. Martinelli, "Sheep Wool Composite Mortar for Thermo-Mechanical Retrofitting", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 11.2, 2025, Keywords: thermo-mechanical retrofitting, thermo-mechanical properties, composite mortar, sheep wool, natural fiber, circular economy. Abstract The construction sector plays a significant role in heavy resource consumption and waste production, directly or indirectly leading to environmental pollution or ecosystem disruption. In efforts to reduce the sector’s carbon footprint and combat climate change's effects, the use of sustainable and eco-friendly building materials is gaining importance. This study highlights the integration of locally available (Sardinian) sheep wool fibres into mortar as an alternative construction product. Experimental findings indicate that incorporating sheep wool enhances the flexural strength of the mortar, suggesting improved durability under bending forces compared to conventional mortar mixtures. However, this addition results in a slight reduction in both compressive strength and thermal conductivity. While a decrease in compressive strength may suggest limitations for specific load-bearing uses, the lower thermal conductivity indicates better insulation properties. Notably, this improvement in thermal performance highlights the boost in the insulation property of the composite mortar. The results show that the composite mortar fabricated with sheep wool fiber can provide an optimum balance between structural performance and improved insulation properties, if selected for integrated retrofitting. download the full-text of this paper (PDF, 9 pages, 776 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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