Experimental study on the behavior of carbon-fabric reinforced cementitious matrix composites in impressed current cathodic protection

被引：19

作者：

Feng, Ran ^{[1
,2
]}

Zhang, Jingzhou ^{[1
]}

Zhu, Ji-Hua ^{[3
]}

Xing, Feng ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China

[2] South China Univ Technol, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Peoples R China

[3] Shenzhen Univ, Coll Civil & Transportat Engn, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 264卷

基金：

中国国家自然科学基金;

关键词：

Bending test; C-FRCM composite; Ductility; ICCP; Tensile test; Ultimate bearing capacity; FRCM; CFRP;

D O I：

10.1016/j.conbuildmat.2020.120655

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents experimental investigations on the tensile and flexural behavior of Carbon-Fabric Reinforced Cementitious Matrix (C-FRCM) composites in Impressed Current Cathodic Protection (ICCP). A total of eighteen C-FRCM composites are fabricated and tested. The effects of the current density in ICCP and the ply number of carbon fabric (CF) mesh on the mechanical properties of C-FRCM composites are studied. In the tensile tests, a digital image correlation (DIC) system is employed to capture the strain evolution of C-FRCM composites during the loading process. The parameters of the stress-strain relationships of C-FRCM composites are determined from the experimental results. In the bending tests, the load-central deflection relationship of the specimens is presented. It is found that the current density has detrimental effects on both ultimate bearing capacity and ductility of C-FRCM composites. In the ICCP procedure, increasing the ply number of CF mesh is an effective way to increase the safety margin of C-FRCM composites to resist the external force. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：12

共 30 条

[1] Intrados strengthening of brick masonry arches with different FRCM composites: Experimental and analytical investigations [J].

Alecci, Valerio ;

Focacci, Francesco ;

Rovero, Luisa ;

Stipo, Gianfranco ;

De Stefano, Mario .

COMPOSITE STRUCTURES, 2017, 176 :898-909

[2]

[Anonymous], 2019, 50081 GBT

[3]

[Anonymous], 1997, C1018 ASTM

[4] A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems [J].

Ascione, Luigi ;

de Felice, Gianmarco ;

De Santis, Stefano .

COMPOSITES PART B-ENGINEERING, 2015, 78 :497-506

[5]

ASTM, 2008, ASTM D1141

[6] Fabric-reinforced cementitious matrix: A promising strengthening technique for concrete structures [J].

Awani, Oluwafunmilayo ;

El-Maaddawy, Tamer ;

Ismail, Najif .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 132 :94-111

[7] Strengthening of shear-critical RC beams: Alternatives to externally bonded CFRP sheets [J].

Azam, Rizwan ;

Soudki, Khaled ;

West, Jeffrey S. ;

Noel, Martin .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 151 :494-503

[8] Numerical modeling of Fabric Reinforce Cementitious Matrix composites (FRCM) in tension [J].

Bertolesi, Elisa ;

Carozzi, Francesca Giulia ;

Milani, Gabriele ;

Poggi, Carlo .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 70 :531-548

[9]

Bertolini L., 1996, Advances in Cement Research, V8, P93

[10] Role of the Matrix Layers in the Stress-Transfer Mechanism of FRCM Composites Bonded to a Concrete Substrate [J].

Carloni, C. ;

D'Antino, T. ;

Sneed, L. H. ;

Pellegrino, C. .

JOURNAL OF ENGINEERING MECHANICS, 2015, 141 (06)

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