Experimental study on reinforced concrete small-eccentricity compressive column after acid rain corrosion

被引：10

作者：

Guo, Liujun ^{[1
]}

Guo, Wenhua ^{[1
]}

Chen, Dingshi ^{[1
]}

Wang, Kai ^{[2
]}

Yu, Luoning ^{[3
]}

机构：

[1] Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China

[2] East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Peoples R China

[3] Jiangxi Construct Bldg IV Limited Liabil Co Ltd, Nanchang 330000, Peoples R China

来源：

JOURNAL OF BUILDING ENGINEERING | 2024年 / 83卷

基金：

中国国家自然科学基金;

关键词：

Eccentric compression; Reinforced concrete columns; Acid -rain corrosion; Corrosion mechanism; Bearing capacity model; FRACTURE-TOUGHNESS; CFST COLUMNS; CYCLIC LOAD; BEHAVIOR; DETERIORATION; PERFORMANCE; COMPOSITE; RAINWATER; CHINA;

D O I：

10.1016/j.jobe.2023.108331

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Six groups of reinforced concrete (RC) columns were designed to investigate the impact of acidrain corrosion on the eccentric-compression performance of RC columns. The pH, SO4 2 concentration, and corrosion time were designed as the experimental parameters. The influence of acidrain corrosion on the acidification depth, spalling thickness, compressive strength, bearing capacity, and deformation capacity of the specimens under eccentric load were analyzed. The results demonstrated that the acidification depth and spalling thickness of concrete increased with corrosion time and were related to the pH and SO4 2 concentration of acid rain. The reboundbased compressive strength and the ultimate load of RC columns increased first and then decreased with corrosion time. In addition, the macroscopic behavior and mechanical performance of concrete after acid-rain corrosion were revealed by the observed microphase and micromorphology with XRD and SEM. Finally, a bearing capacity model of RC eccentric compression column after acid-rain corrosion was established.

引用

页数：14

共 50 条

[21] Effect of transverse reinforcement corrosion on compressive strength reduction of stirrup-confined concrete: an experimental study [J].

Goharrokhi, Ali ;

Ahmadi, Jamal ;

Shayanfar, Mohsen Ali ;

Ghanooni-Bagha, Mohammad ;

Nasserasadi, Kiarash .

SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020, 45 (01)

[22] Experimental investigation into the seismic behavior of squat reinforced concrete walls subjected to acid rain erosion [J].

Zhou, Yan ;

Zheng, Shansuo ;

Chen, Liuzhuo ;

Long, Li ;

Wang, Bin .

JOURNAL OF BUILDING ENGINEERING, 2021, 44

[23] Experimental study on the fatigue performance of deep reinforced concrete beams subjected to simultaneous reinforcement corrosion [J].

Sarfaraz, Aamna ;

Harish, Kizhakkumodom Venkatanarayanan .

INTERNATIONAL JOURNAL OF FATIGUE, 2025, 193

[24] Precast segmental reinforced concrete walls under eccentric compressive loading: An experimental study [J].

Hou, Hetao ;

Ye, Haideng ;

Qu, Bing ;

Ma, Tianxiang ;

Liu, Xiang ;

Chen, Lei ;

Zhang, Shuhui .

ENGINEERING STRUCTURES, 2016, 113 :79-88

[25] Experimental study on residual compressive bearing capacity of cracked reinforced concrete columns by SCDA [J].

Sun, Jinshan ;

Liu, Shaoyan ;

Hu, Lingling ;

Jia, Yongsheng ;

Yao, Yingkang ;

Xia, Yuqing .

MATERIALS RESEARCH EXPRESS, 2024, 11 (10)

[26] Experimental study on dynamic compressive behaviour of recycled tyre polymer fibre reinforced concrete [J].

Chen, Meng ;

Chen, Wei ;

Zhong, Hui ;

Chi, Dong ;

Wang, Yuhan ;

Zhang, Mingzhong .

CEMENT & CONCRETE COMPOSITES, 2019, 98 :95-112

[27] Experimental study on the compressive behavior of concrete filled steel tubular columns with regional corrosion [J].

Li, Ming ;

Yao, Lingbo ;

He, Liusheng ;

Mao, Xiaoyong ;

Li, Guojian .

STRUCTURES, 2022, 35 :882-892

[28] Experimental study on behaviors of reinforced concrete slabs after fire [J].

Wang, ZQ ;

Yu, ZW ;

Yu, F .

PROGRESS IN SAFETY SCIENCE AND TECHNOLOGY, VOL 4, PTS A AND B, 2004, 4 :1252-1256

[29] Experimental study on dynamic compressive properties of fiber-reinforced reactive powder concrete at high strain rates [J].

Hou, Xiaomeng ;

Cao, Shaojun ;

Zheng, Wenzhong ;

Rong, Qin ;

Li, Gang .

ENGINEERING STRUCTURES, 2018, 169 :119-130

[30] An experimental study on bond behaviors of reinforced concrete under fatigue loading and corrosion [J].

Zhou, Haijun ;

Qi, Xuan ;

Lin, Zhiyao ;

De Filippo, Michele ;

Liu, Jian ;

Ma, Cong ;

Xing, Feng .

STRUCTURAL CONCRETE, 2023, 24 (01) :504-520

← 1 2 3 4 5 →