Pull-off testing as an interfacial bond strength assessment of CFRP-concrete interface exposed to a marine environment

被引：23

作者：

Fazli, Hamed ^{[1
]}

Yassin, A. Y. Mohd ^{[1
]}

Shafiq, Nasir ^{[1
]}

Teo, Wee ^{[2
]}

机构：

[1] Univ Teknol PETRONAS, Dept Civil & Environm Engn, Seri Iskandar 32610, Perak, Malaysia

[2] Heriot Watt Univ Malaysia, Sch Energy Geosci Infrastruct & Soc EGIS, Jalan Venna P5-2,Precinct 5, Putrajaya 62200, Malaysia

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2018年 / 84卷

关键词：

fibre reinforced polymer; pull-off test; adhesive bond; accelerated-ageing test; TEMPERATURE; BEHAVIOR; DURABILITY;

D O I：

10.1016/j.ijadhadh.2018.04.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The long-term performance of the bond between carbon fibre reinforced polymer composite (CFRP) fabrics and concrete substrate is crucial to estimations of the reliability of externally strengthened concrete structures. This paper presents the experimental results and analysis of 162 pull-off tests using nine concrete slabs under various environmental conditions, i.e., wet/dry cyclic exposure and full-immersion exposure of 3.5% salt-water at a temperature of 60 degrees C. The main objective of this study was to assess the effects on the bond performance of CFRP-strengthened concrete slabs during 12 months of exposure in a marine environment. Five types of failure modes were observed in the tested samples. The test results confirmed that 12 months of exposure in a marine environment had a low effect on the epoxy performance between CFRP and concrete. The results also indicated the marginal increase of pull-off strength values after 12 months of environmental exposure.

引用

页码：335 / 342

页数：8

共 16 条

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Fazli, Hamed (hamed.fazli62@gmail.com), 2018, Elsevier Ltd (84)
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Liu S.
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Tiedao Xuebao/Journal of the China Railway Society, 2019, 41 (01): : 138 - 143
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Haddad, Rami Haythem
Al-Rousan, Rajai
Ghanma, Lina
Nimri, Zaid
MAGAZINE OF CONCRETE RESEARCH, 2015, 67 (13) : 707 - 717
[4] Experimental and statistical dry-fracture assessment of the CFRP-concrete interface bond
Boyajian, David
Zirakian, Tadeh
Boyajian, Christof
Chen, Shen-En
STRUCTURES, 2022, 36 : 580 - 588
[5] Bond characterization between concrete substrate and repairing SFRC using pull-off testing
Bonaldo, E
Barros, JAO
Lourenço, PB
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2005, 25 (06) : 463 - 474
[6] Bond characterization between concrete substrate and repairing SFRC using pull-off testing
Bonaldo, Everaldo
Barros, Joaquim A.O.
Lourenço, Paulo B.
International Journal of Adhesion and Adhesives, 2005, 25 (06): : 463 - 474
[7] Prediction on compressive strength concrete using modified pull-off testing method (MPTM)
Yang, Suhang
Xu, Zhifeng
Bian, Zhengning
CONSTRUCTION AND BUILDING MATERIALS, 2020, 250 (250)
[8] Effect of hot and humid acid rain environment on shear bond properties of CFRP-concrete interface
Yi F.
Yang J.
Ma Z.
Yin Y.
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica, 2023, 40 (08): : 4757 - 4767
[9] Evaluation of Pull-Off Tests as a FRP-Concrete Bond Testing Method in the Laboratory and Field
Mate, Oscar R.
Atadero, Rebecca A.
PRACTICE PERIODICAL ON STRUCTURAL DESIGN AND CONSTRUCTION, 2014, 19 (02)
[10] Influence of substrate moisture state and roughness on interface microstructure and bond strength: Slant shear vs. pull-off testing
Bentz, Dale P.
De la Varga, Igor
Munoz, Jose F.
Spragg, Robert P.
Graybeal, Benjamin A.
Hussey, Daniel S.
Jacobson, David L.
Jones, Scott Z.
LaManna, Jacob M.
CEMENT & CONCRETE COMPOSITES, 2018, 87 : 63 - 72

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