This paper presents the preliminary results of an experimental programme on the tensile performance of flax-TRM systems subjected to accelerated ageing. Composites consisting of two layers of flax textiles embedded in a lime-based mortar were conditioned in water for 1000 h and 2000 h at controlled temperatures of 23oC and 40oC. Bare textiles were also conditioned in a lime solution for the same duration and temperature conditions to assess and decouple the deterioration mechanisms at the textile and composite scale. The mechanical behaviour of both unconditioned and aged textiles and composites was characterised through uniaxial tensile tests. Based on the preliminary results of this study, the key degradation mechanisms seem to mainly involve the textile reinforcement. The tested FTRM systems exhibited a strength retention of approximately 86% after an exposure time of 1000 h. However, when exposure time increased to 2000 h, a retention rate of only 60% was achieved.

Durability of flax textile-reinforced mortar systems / Trochoutsou, N.; Baldassari, M.; Monaco, A.; Cornetti, P.; Guadagnini, M. - ELETTRONICO. - (2024). (Intervento presentato al convegno Sixth International Conference on Sustainable Construction Materials and Technologies (SCMT6) tenutosi a Lyon (France) nel 9-14 June 2024) [10.18552/2024/SCMT/327].

Durability of flax textile-reinforced mortar systems

Baldassari M.;Monaco A.;Cornetti P.;
2024

Abstract

This paper presents the preliminary results of an experimental programme on the tensile performance of flax-TRM systems subjected to accelerated ageing. Composites consisting of two layers of flax textiles embedded in a lime-based mortar were conditioned in water for 1000 h and 2000 h at controlled temperatures of 23oC and 40oC. Bare textiles were also conditioned in a lime solution for the same duration and temperature conditions to assess and decouple the deterioration mechanisms at the textile and composite scale. The mechanical behaviour of both unconditioned and aged textiles and composites was characterised through uniaxial tensile tests. Based on the preliminary results of this study, the key degradation mechanisms seem to mainly involve the textile reinforcement. The tested FTRM systems exhibited a strength retention of approximately 86% after an exposure time of 1000 h. However, when exposure time increased to 2000 h, a retention rate of only 60% was achieved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2995676