Influence of freeze–thaw cycles on the pull-out response of lime-based TRM composites

Ali Dalalbashi; Bahman Ghiassi; Daniel V. Oliveira

doi:10.1016/j.conbuildmat.2021.125473

Influence of freeze–thaw cycles on the pull-out response of lime-based TRM composites

Ali Dalalbashi^*, Bahman Ghiassi, Daniel V. Oliveira

^*Corresponding author for this work

Civil Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

36 Downloads (Pure)

Abstract

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.

Original language	English
Article number	125473
Number of pages	15
Journal	Construction and Building Materials
Volume	313
Early online date	6 Nov 2021
DOIs	https://doi.org/10.1016/j.conbuildmat.2021.125473
Publication status	Published - 27 Dec 2021

Bibliographical note

Funding Information:
This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) , under reference UIDB/04029/2020 . The support to the first author through grant agreement SFRH/BD/131282/2017 , provided by FCT- Foundation for Science and Technology , is kindly acknowledged.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

Durability
Fiber/matrix bond
FRCM
Freeze-Thaw
Hydraulic lime mortar
Pull-out test
SRG
TRM

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

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DalalbashiA2021InfluenceAccepted author manuscript, 1.8 MBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

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title = "Influence of freeze–thaw cycles on the pull-out response of lime-based TRM composites",

abstract = "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.",

keywords = "Durability, Fiber/matrix bond, FRCM, Freeze-Thaw, Hydraulic lime mortar, Pull-out test, SRG, TRM",

author = "Ali Dalalbashi and Bahman Ghiassi and Oliveira, {Daniel V.}",

note = "Funding Information: This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) , under reference UIDB/04029/2020 . The support to the first author through grant agreement SFRH/BD/131282/2017 , provided by FCT- Foundation for Science and Technology , is kindly acknowledged. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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AU - Ghiassi, Bahman

AU - Oliveira, Daniel V.

N1 - Funding Information: This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) , under reference UIDB/04029/2020 . The support to the first author through grant agreement SFRH/BD/131282/2017 , provided by FCT- Foundation for Science and Technology , is kindly acknowledged. Publisher Copyright: © 2021 Elsevier Ltd

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N2 - 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.

AB - 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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Influence of freeze–thaw cycles on the pull-out response of lime-based TRM composites

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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