Cracking of cover concrete due to steel corrosion is one of the clear physical indicators of loss of service life of corroding RC structures. Its prediction is therefore very important for service life modelling of these structures. Models developed to predict the time to cover cracking assume that stresses due to steel corrosion follow the principles of a thick-walled cylinder under internal pressure. Considering the errors in the models. this paper contests the applicability of the thick-walled cylinder approach to model the time to cover cracking as well as the rate of lateral expansion of concrete after cover cracking using experimental results from 12 RC beams (153 x 254 x 3000 mm) corroded under a sustained load. It is shown in the paper that, contrary to the assumptions of uniform expansion made in the thick-walled cylinder approach, before cracking of the cover concrete, tensile strains are applied on the face of beams where corrosion agents are drawn whilst other faces are in compression Corroded steel coupons are used to verify that this variation of strains is caused by the corrosion process not being uniformly distributed around the steel bar. It is also shown in the paper how cracking and location of cracks affects the rate of lateral deformation of concrete due to steel corrosion. (C) 2009 Elsevier Ltd. All rights reserved.
机构:
Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Ahad A.A.
Ahmed M.M.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Ahmed M.M.
Mohammed M.S.H.S.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Mohammed M.S.H.S.
Umar M.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Sheng Jie
Yin Shi-ping
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
China Univ Min & Technol, Sch Mech & Civil Engn, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Yin Shi-ping
Wang Fei
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Wang Fei
Yang Yang
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China Univ Min & Technol, Sch Mech & Civil Engn, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
机构:
China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Zhao, Peng
Xu, Gang
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Xu, Gang
Wang, Qing
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Wang, Qing
Tang, Guangjie
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Li, Wei-wen
Huang, Jian-qiang
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Huang, Jian-qiang
Lu, Yao
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Lu, Yao
Zhou, Ying-wu
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Zhou, Ying-wu
Mansour, Walid
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Kafrelsheikh Univ, Fac Engn, Civil Engn Dept, Kafrelsheikh, EgyptShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Mansour, Walid
Kai, Ming-feng
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Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Kai, Ming-feng
Qin, Shao-feng
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Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Qin, Shao-feng
Wang, Peng
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
机构:
Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Ahad A.A.
Ahmed M.M.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Ahmed M.M.
Mohammed M.S.H.S.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
Mohammed M.S.H.S.
Umar M.
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Department of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, ChennaiDepartment of Civil Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Sheng Jie
Yin Shi-ping
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
China Univ Min & Technol, Sch Mech & Civil Engn, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Yin Shi-ping
Wang Fei
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China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
Wang Fei
Yang Yang
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China Univ Min & Technol, Sch Mech & Civil Engn, Jiangsu Key Lab Environm Impact & Struct Safety E, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
机构:
China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Zhao, Peng
Xu, Gang
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Xu, Gang
Wang, Qing
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Collaborat Innovat Ctr Geohazards & Ecoenvironm T, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
Wang, Qing
Tang, Guangjie
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China Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R ChinaChina Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Hubei, Peoples R China
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Li, Wei-wen
Huang, Jian-qiang
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Huang, Jian-qiang
Lu, Yao
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Lu, Yao
Zhou, Ying-wu
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Zhou, Ying-wu
Mansour, Walid
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Kafrelsheikh Univ, Fac Engn, Civil Engn Dept, Kafrelsheikh, EgyptShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Mansour, Walid
Kai, Ming-feng
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h-index: 0
机构:
Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Kai, Ming-feng
Qin, Shao-feng
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Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Qin, Shao-feng
Wang, Peng
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Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China
Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaShenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China