Influence of flexural loading and chloride exposure on the fatigue behavior of high-performance lightweight engineered cementitious composites

被引：30

作者：

Guo, Menghuan ^{[1
]}

Zhong, Qianli ^{[1
]}

Zhou, Yingwu ^{[1
]}

Hu, Biao ^{[1
]}

Huang, Zhenyu ^{[1
]}

Yue, Yanchao ^{[1
]}

机构：

[1] Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Guangdong, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 249卷

基金：

中国国家自然科学基金;

关键词：

High-performance lightweight engineered cementitious composites; Flexural fatigue; Chloride exposure; Strength; Fatigue life; Failure; HIGH-STRENGTH; MECHANICAL-PROPERTIES; MULTIPLE CRACKING; REPAIR-MATERIAL; CONCRETE; DURABILITY; SHCC; POLYETHYLENE; CENOSPHERE; POLYMER;

D O I：

10.1016/j.conbuildmat.2020.118512

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The flexural fatigue behavior of high-performance lightweight engineered cementitious composites (HPLW-ECC) with tensile strength of 7.16 MPa and tensile strain capacity of 8.91% was investigated. The flexural repetitive loading demonstrated a pronounced influence on the fiber bridging capacity of HPLW-ECC. In contrast, the multiple cracking characteristics of HPLW-ECC under chloride exposure were maintained though its fatigue life decreased. The low-density HPLW-ECC exhibited high resistance to chloride penetration, and the fiber bridging capacity remained almost intact. Moreover, the flexural fatigue performance of HPLW-ECC possessing higher strength was comparable to that of conventional lightweight ECC. A fatigue life prediction model was proposed, and the model's failure probability was discussed based on the probabilistic reliability analyses. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：11

共 58 条

[1]

[Anonymous], 240FDS RILEM

[2]

[Anonymous], 2008, Recommendations for Design and Construction of High Performance Fiber Reinforced Cement Composites with Multiple Fine Cracks, P1

[3]

[Anonymous], 448 CECS

[4] Time-dependent response of ECC: Characterisation of creep and rate dependence [J].

Boshoff, William P. ;

van Zijl, Gideon P. A. G. .

CEMENT AND CONCRETE RESEARCH, 2007, 37 (05) :725-734

[5] Use of high strength Strain-Hardening Cementitious Composites for flexural repair of concrete structures with significant steel corrosion [J].

Chen, Yixin ;

Yu, Jing ;

Leung, Christopher K. Y. .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 167 :325-337

[6] Tensile behavior of high-strength strain-hardening cement-based composites (HS-SHCC) made with high-performance polyethylene, aramid and PBO fibers [J].

Curosu, Iurie ;

Liebscher, Marco ;

Mechtcherine, Viktor ;

Bellmann, Cornelia ;

Michel, Stefan .

CEMENT AND CONCRETE RESEARCH, 2017, 98 :71-81

[7] Failures of mainline railway sleepers and suggested remedies - Review of current practice [J].

Ferdous, Wahid ;

Manalo, Allan .

ENGINEERING FAILURE ANALYSIS, 2014, 44 :17-35

[8] Fatigue performance of plain and steel fibre reinforced self compacting concrete using S-N relationship [J].

Goel, S. ;

Singh, S. P. .

ENGINEERING STRUCTURES, 2014, 74 :65-73

[9] Fiber-reinforced cementitious composites incorporating glass cenospheres - Mechanical properties and microstructure [J].

Hanif, Asad ;

Parthasarathy, Pavithra ;

Lu, Zeyu ;

Sun, Ming ;

Li, Zongjin .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 154 :529-538

[10] Utilization of fly ash cenosphere as lightweight filler in cement-based composites - A review [J].

Hanif, Asad ;

Lu, Zeyu ;

Li, Zongjin .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 144 :373-384

← 1 2 3 4 5 6 →