scholarly journals INFLUENCE OF TEMPERATURE AND CARBONATION OF CONCRETE ON RATE OF CORROSION OF REINFORCING BAR IN CONCRETE CONTAINING CHLORIDE ION

2012 ◽  
Vol 77 (682) ◽  
pp. 1809-1818 ◽  
Author(s):  
Masaru KAKEGAWA ◽  
Yoshihiro MASUDA ◽  
Yuji MATSUBAYASHI ◽  
Tadatsugu KAGE
Keyword(s):  
Chloride Ion ◽  
Influence Of Temperature ◽  
Reinforcing Bar

scholarly journals ACCELERATED TEST ON THE RATE OF CORROSION OF REINFORCING BAR IN CONCRETE CONTAINING CHLORIDE ION

2012 ◽  
Vol 77 (681) ◽  
pp. 1613-1622 ◽  
Author(s):  
Masaru KAKEGAWA ◽  
Yoshihiro MASUDA ◽  
Yuji MATSUBAYASHI ◽  
Tadatsugu KAGE
Keyword(s):  
Chloride Ion ◽  
Accelerated Test ◽  
Reinforcing Bar

Influence of Temperature on Chloride Ion Diffusion of Concrete

2014 ◽  
Vol 26 (1) ◽  
pp. 71-78
Author(s):  
Hyoung-Seok So ◽  
Seung-Hoon Choi ◽  
Chung-Seok Seo ◽  
Ki-Seog Seo ◽  
Seung-Young So
Keyword(s):  
Chloride Ion ◽  
Ion Diffusion ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Chloride Ion Diffusion

Probabilistic Analysis of Corrosion-Induced Resistance Degradation of Reinforced Concrete Bridge Beam under Incomplete Information

2010 ◽  
Vol 163-167 ◽  
pp. 3193-3199
Author(s):  
Lei Wang ◽  
Ya Fei Ma ◽  
Jian Ren Zhang
Keyword(s):  
Reinforced Concrete ◽  
Incomplete Information ◽  
Induced Resistance ◽  
Probabilistic Analysis ◽  
Chloride Ion ◽  
Reinforcing Bar ◽  
Reinforced Concrete Bridge ◽  
Structural Resistance ◽  
Resistance Degradation ◽  
The Relationship

The influencing information of structural resistance cannot be exactly inspected due to limitation of the experimental means, time and space. The study must be conducted by incomplete information and the uncertainty is enhanced. The uncertainty consists of fuzziness, randomness, and faultiness of knowledge. The faultiness of knowledge is the weak uncertainty, and can be incorporated into fuzziness and randomness. A novel probabilistic analysis method of corrosion-induced resistance degradation subject to fuzziness and randomness is developed in this paper. The reinforcing bar corrosion is induced by chloride ion attack in reinforced concrete (RC) bridge. The relationship between steel area corrosion rate and yield strength is presented based on the experimental investigation on mechanical property of corroded reinforcement. The fuzzy time-variant probabilistic analysis of resistance degradation is illustrated by an example problem of RC bridge beam. The result can be used to time-variant reliability-based evaluation for reinforced concrete.

Influence of temperature and chloride ion concentration on the corrosion behaviour of Mg–4Al–3Ca–0.5RE alloy

2019 ◽  
Vol 70 (7) ◽  
pp. 1214-1221
Author(s):  
Xinhong Xiong ◽  
Lianbo Chen ◽  
Kaixiong Hu ◽  
Zhiping Wang ◽  
Qiaoxin Zhang ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Chloride Ion ◽  
Ion Concentration ◽  
Influence Of Temperature

ANALYSIS OF DETERIORATION IN REINFORCED CONCRETE BRIDGE GIRDERS DAMAGED BY CHLORIDE DETERIORATION AND FATIGUE

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
H. Honda ◽  
T. Shimozato ◽  
Y. Arizumi
Keyword(s):  
Visual Inspection ◽  
Steel Corrosion ◽  
Chloride Ion ◽  
Reinforcing Bars ◽  
Loading Test ◽  
Reinforcing Bar ◽  
Reinforced Concrete Bridge ◽  
Internal Loss ◽  
Static Loading Test ◽  
Girder Bridge

The subject of this research was a concrete T-girder bridge which had been exposed for 40 years to the sub-tropical archipelago environment off the east coast of Okinawa, with large amounts of windblown salt, high temperatures and high humidity, a harsh environment for salt damage and steel corrosion. It had suffered damage in the forms of 1) concrete spalling due to reinforcing bar corrosion, 2) internal loss of cross section and severance in internal reinforcing bars, and was therefore removed. Various tests and inspections were applied to analyze the state of deterioration of a real salt-damaged bridge, with the aim of providing technical reference material of use in formulating appropriate maintenance management methods. Distant visual inspection was performed prior to removal of the girder. After the removal, close visual inspection and non-distractive inspections were performed. Compressive strength, elastic modulus and chloride ion content of the concrete were measured. Corrosion of reinforcing bar was observed after chipping the concrete. Chloride-induced deterioration inside the concrete and competence of non-destructive inspection for the deterioration were studied. Static loading test and fatigue-test were performed.

scholarly journals EXPERIMENTAL STUDY ON THE RATE OF CORROSION OF REINFORCING BAR IN CONCRETE CONTAINING CHLORIDE ION

1992 ◽  
Vol 435 (0) ◽  
pp. 19-27 ◽  
Author(s):  
Yoshihiro MASUDA ◽  
Hiroshi HANAE ◽  
Yuji MATSUBAYASHI ◽  
Kenji HARA ◽  
Masayuki YASUDA
Keyword(s):  
Experimental Study ◽  
Chloride Ion ◽  
Reinforcing Bar

The Electrochemical Characterization of Rebar Passivation Film in Simulated Concrete Media

2011 ◽  
Vol 255-260 ◽  
pp. 539-545 ◽  
Author(s):  
Wei Zhong Gan ◽  
Wei Liang Jin ◽  
Jian Ping Shao
Keyword(s):  
Concrete Structure ◽  
Chloride Ion ◽  
Dynamic State ◽  
Reinforcing Bar ◽  
Passivation Film ◽  
Active Transition ◽  
Long Term Performance ◽  
Term Performance

Based on the fundamental theory of electrochemical anodic polarization, simulated concrete is doped with corrosion inhibitor to prevent corrosion by chloride ion in the marine environment. Thus, with reference to the potential-time curves obtained in different concrete environments and construction conditions, the early dynamic state of active transition of rebar passive films in concretes can be quickly characterized. According to the experiments, the characteristics of passive active transition are synchronous with rebar corrosion. This helps to systematically study the influence of different components of concrete and external media on the durability of the concrete structure. The strong alkaline environment of the concrete is useful in controlling corrosion rate of reinforcing bar. As one of the additional protective measures of the durability of the concrete structure, corrosion inhibitor’s long-term performance contains uncertainty.

scholarly journals EXPERIMENTAL RESEARCH OF CORROSION INITIATION CHLORIDE ION CONCENTRATION OF STAINLESS STEEL REINFORCING BAR IN CONCRETE

2009 ◽  
Vol 65 (4) ◽  
pp. 522-529
Author(s):  
Yutaka TADOKORO ◽  
Yui TSUKUDA ◽  
Toru YAMAJI ◽  
Tsuyoshi MARUYA ◽  
Junichiro NIWA
Keyword(s):  
Stainless Steel ◽  
Experimental Research ◽  
Chloride Ion ◽  
Ion Concentration ◽  
Reinforcing Bar ◽  
Corrosion Initiation
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