Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 313, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.125473
Keywords
Fiber; matrix bond; Pull-out test; Durability; Freeze-Thaw; Hydraulic lime mortar; TRM; FRCM; SRG
Categories
Funding
- FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) [UIDB/04029/2020, SFRH/BD/131282/2017]
- FCT-Foundation for Science and Technology
- Fundação para a Ciência e a Tecnologia [SFRH/BD/131282/2017] Funding Source: FCT
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Textile reinforced mortars (TRMs) have become a sustainable solution for strengthening existing masonry and concrete structures, with most studies focusing on mechanical properties, while durability and long-term performance remain unclear. Experimental study finds that freeze-thaw conditions do not affect mortar strength but can deteriorate fiber-to-mortar bond behavior depending on fiber type, embedded length, and configuration.
Textile reinforced mortars (TRMs) have emerged as a sustainable solution for strengthening existing masonry and concrete structures. As a result, many recent studies have focused on understanding the performance of these composites. However, most of these are aimed at investigating the mechanical properties of TRM composites. At the same time, their durability and long-term performance remain poorly addressed and unclear. This paper presents an experimental study on the effect of freeze-thaw environmental conditions on the micro-mechanical behavior of these composites. The results indicate that the freezing-thawing exposure conditions considered in this study do not have detrimental effects on the mortar strength. However, the fiber-to-mortar bond behavior can deteriorate because the deterioration level depends on the fiber type, embedded length, and fiber configuration.
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