A novel strong and durable near-surface mounted (NSM) FRP method with cost-effective fillers
A novel strong and durable near-surface mounted (NSM) FRP method with cost-effective fillers
Conventional near-surface mounted (NSM) FRP methods rely on expensive and less durable epoxy-filler bond to transfer tensile force from FRP reinforcements into concrete elements, generally failing to fully develop the tensile strength of FRP reinforcements. In this paper, cost-effective and potentially more durable fillers (e.g. cement-based paste and ceramic tile adhesive) combined with anchorages have been proposed to improve conventional NSM FRP methods. Experimental results demonstrate that the proposed NSM methods are able to make full use of FRP reinforcements, suggesting excellent compatibility between fillers and the proposed method. Further mechanical improvements can be achieved by evenly distributing the FRP material of one groove into multiple grooves. Moreover, the study tends to use high-viscosity cement filler for facilitating FRP installation especially on the bottom or side of concrete elements. The application of flexural reinforcement on the side of concrete elements have also been explored, aiming to deliver a much easier FRP installation. It is believed that the paper presents feasible improvements for NSM methods. Test results suggest that those improvements can achieve a stronger and potentially more durable NSM method with cost-effective fillers.
NSM FRP methodsEpoxy fillerCement-based pasteAnchorageHigh viscosityMultiple groovesFull use
Sun, Wei
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Lou, Tiejiong
2d99cbfa-37a0-49c3-a033-38e1dd580ab6
Achintha, Mithila
8163c322-de6d-4791-bc31-ba054cc0e07d
1 January 2021
Sun, Wei
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Lou, Tiejiong
2d99cbfa-37a0-49c3-a033-38e1dd580ab6
Achintha, Mithila
8163c322-de6d-4791-bc31-ba054cc0e07d
Sun, Wei, Lou, Tiejiong and Achintha, Mithila
(2021)
A novel strong and durable near-surface mounted (NSM) FRP method with cost-effective fillers.
Composite Structures, 255, [112952].
(doi:10.1016/j.compstruct.2020.112952).
Abstract
Conventional near-surface mounted (NSM) FRP methods rely on expensive and less durable epoxy-filler bond to transfer tensile force from FRP reinforcements into concrete elements, generally failing to fully develop the tensile strength of FRP reinforcements. In this paper, cost-effective and potentially more durable fillers (e.g. cement-based paste and ceramic tile adhesive) combined with anchorages have been proposed to improve conventional NSM FRP methods. Experimental results demonstrate that the proposed NSM methods are able to make full use of FRP reinforcements, suggesting excellent compatibility between fillers and the proposed method. Further mechanical improvements can be achieved by evenly distributing the FRP material of one groove into multiple grooves. Moreover, the study tends to use high-viscosity cement filler for facilitating FRP installation especially on the bottom or side of concrete elements. The application of flexural reinforcement on the side of concrete elements have also been explored, aiming to deliver a much easier FRP installation. It is believed that the paper presents feasible improvements for NSM methods. Test results suggest that those improvements can achieve a stronger and potentially more durable NSM method with cost-effective fillers.
Text
A_novel_strong_and_durable_near_surface_mounted_NSM_FRP_method_with_cost_effective_fillers
- Accepted Manuscript
More information
Accepted/In Press date: 9 September 2020
e-pub ahead of print date: 14 September 2020
Published date: 1 January 2021
Additional Information:
Funding Information:
The support of the National Natural Science Foundation of China [grant numbers 51608244], the Key Laboratory of Ministry of Education for Mechanics on Western Disaster and Environment, the School of Civil Engineering and Mechanics at Lanzhou University, and the School of Engineering at University of Southampton are greatly appreciated.
Publisher Copyright:
© 2020 Elsevier Ltd
Keywords:
NSM FRP methodsEpoxy fillerCement-based pasteAnchorageHigh viscosityMultiple groovesFull use
Identifiers
Local EPrints ID: 444635
URI: http://eprints.soton.ac.uk/id/eprint/444635
ISSN: 0263-8223
PURE UUID: 9d1d35ea-4ef7-4a50-9c2b-f5b7426f5d9e
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Date deposited: 28 Oct 2020 17:30
Last modified: 17 Mar 2024 06:02
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Contributors
Author:
Wei Sun
Author:
Tiejiong Lou
Author:
Mithila Achintha
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