Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature

Ao Zhou; Qiwen Qiu; Cheuk Lun Chow; Denvid Lau

doi:10.1016/j.compositesa.2020.105802

Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature

Ao Zhou, Qiwen Qiu, Cheuk Lun Chow^*, Denvid Lau^*

^*Corresponding author for this work

Department of Architecture and Civil Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

70 Citations (Scopus)

Abstract

Externally bonding fiber reinforced polymer (FRP) is an effective approach to strengthen/retrofit concrete structures. However, little is known on bond performance of FRP-bonded concrete under high temperature, impeding the application of FRP in buildings potentially subjected to fire. In this paper, the bond performance of aramid, basalt and carbon FRP-concrete subjected to high temperature (80–300 °C) has been investigated through acoustic-laser technique, macroscale fracture tests and microscale characterization. Results have shown that the deterioration percentages of both peel and shear interface fracture toughness of aramid FRP-bonded concrete are largest under high temperature, followed by carbon FRP-bonded concrete and basalt FRP-bonded concrete. The mechanisms behind different bond performance have been revealed with variations of microscale morphology and chemical decomposition. The results and findings can provide a fair comparison of thermal susceptibility and residual bond performance of various FRP-bonded systems, and contribute to designing FRP strengthening/retrofitting systems under high temperature.

Original language	English
Article number	105802
Journal	Composites Part A: Applied Science and Manufacturing
Volume	131
Online published	28 Jan 2020
DOIs	https://doi.org/10.1016/j.compositesa.2020.105802
Publication status	Published - Apr 2020

Research Keywords

A. Aramid fibers
A. Carbon fibers
B. High-temperature properties
B. Interface

Access Output

10.1016/j.compositesa.2020.105802

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{5e49ba91d0cf46aaae49f98671daeb7d,

title = "Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature",

abstract = "Externally bonding fiber reinforced polymer (FRP) is an effective approach to strengthen/retrofit concrete structures. However, little is known on bond performance of FRP-bonded concrete under high temperature, impeding the application of FRP in buildings potentially subjected to fire. In this paper, the bond performance of aramid, basalt and carbon FRP-concrete subjected to high temperature (80–300 °C) has been investigated through acoustic-laser technique, macroscale fracture tests and microscale characterization. Results have shown that the deterioration percentages of both peel and shear interface fracture toughness of aramid FRP-bonded concrete are largest under high temperature, followed by carbon FRP-bonded concrete and basalt FRP-bonded concrete. The mechanisms behind different bond performance have been revealed with variations of microscale morphology and chemical decomposition. The results and findings can provide a fair comparison of thermal susceptibility and residual bond performance of various FRP-bonded systems, and contribute to designing FRP strengthening/retrofitting systems under high temperature.",

keywords = "A. Aramid fibers, A. Carbon fibers, B. High-temperature properties, B. Interface",

author = "Ao Zhou and Qiwen Qiu and Chow, {Cheuk Lun} and Denvid Lau",

year = "2020",

month = apr,

doi = "10.1016/j.compositesa.2020.105802",

language = "English",

volume = "131",

journal = "Composites Part A: Applied Science and Manufacturing",

issn = "1359-835X",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature

AU - Zhou, Ao

AU - Qiu, Qiwen

AU - Chow, Cheuk Lun

AU - Lau, Denvid

PY - 2020/4

Y1 - 2020/4

N2 - Externally bonding fiber reinforced polymer (FRP) is an effective approach to strengthen/retrofit concrete structures. However, little is known on bond performance of FRP-bonded concrete under high temperature, impeding the application of FRP in buildings potentially subjected to fire. In this paper, the bond performance of aramid, basalt and carbon FRP-concrete subjected to high temperature (80–300 °C) has been investigated through acoustic-laser technique, macroscale fracture tests and microscale characterization. Results have shown that the deterioration percentages of both peel and shear interface fracture toughness of aramid FRP-bonded concrete are largest under high temperature, followed by carbon FRP-bonded concrete and basalt FRP-bonded concrete. The mechanisms behind different bond performance have been revealed with variations of microscale morphology and chemical decomposition. The results and findings can provide a fair comparison of thermal susceptibility and residual bond performance of various FRP-bonded systems, and contribute to designing FRP strengthening/retrofitting systems under high temperature.

AB - Externally bonding fiber reinforced polymer (FRP) is an effective approach to strengthen/retrofit concrete structures. However, little is known on bond performance of FRP-bonded concrete under high temperature, impeding the application of FRP in buildings potentially subjected to fire. In this paper, the bond performance of aramid, basalt and carbon FRP-concrete subjected to high temperature (80–300 °C) has been investigated through acoustic-laser technique, macroscale fracture tests and microscale characterization. Results have shown that the deterioration percentages of both peel and shear interface fracture toughness of aramid FRP-bonded concrete are largest under high temperature, followed by carbon FRP-bonded concrete and basalt FRP-bonded concrete. The mechanisms behind different bond performance have been revealed with variations of microscale morphology and chemical decomposition. The results and findings can provide a fair comparison of thermal susceptibility and residual bond performance of various FRP-bonded systems, and contribute to designing FRP strengthening/retrofitting systems under high temperature.

KW - A. Aramid fibers

KW - A. Carbon fibers

KW - B. High-temperature properties

KW - B. Interface

UR - http://www.scopus.com/inward/record.url?scp=85078971259&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85078971259&origin=recordpage

U2 - 10.1016/j.compositesa.2020.105802

DO - 10.1016/j.compositesa.2020.105802

M3 - RGC 21 - Publication in refereed journal

SN - 1359-835X

VL - 131

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 105802

ER -

Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

GRF: A Study on Smoke Hazards from Burning Aramid Fibre Composite Materials in a Building Fire

Cite this

Interfacial performance of aramid, basalt and carbon fiber reinforced polymer bonded concrete exposed to high temperature

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

GRF: A Study on Smoke Hazards from Burning Aramid Fibre Composite Materials in a Building Fire

Cite this