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Journal articles on the topic 'Corrosion in reinforced concrete'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Hernández, Y., O. Troconis de Rincón, A. Torres, S. Delgado, J. Rodríguez, and O. Morón. "Relación entre la velocidad de corrosión de la armadura y el ancho de fisuras en vigas de concreto armado expuestas a ambientes que simulan el medio marino." Revista ALCONPAT 6, no. 3 (2016): 272–83. http://dx.doi.org/10.21041/ra.v6i3.152.

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Relación entre la velocidad de corrosión de la armadura y el ancho de fisuras en vigas de concreto armado expuestas a ambientes que simulan el medio marino RESUMENEsta investigación presenta una relación empírica entre la velocidad de corrosión de la armadura y la velocidad de ensanchamiento de fisuras por corrosión del recubrimiento de concreto en vigas, con o sin aplicación de carga. Se evaluaron vigas de concreto armado, expuestas a un proceso de corrosión natural mediante el rociado con solución salina al 3,5 %p/p de NaCl, para acelerar el proceso corrosivo de la armadura, mediante ensayos

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2

Anandan, Sivakumar, Sounthararajan Vallarasu Manoharan, and Thirumurugan Sengottian. "Corrosion Effects on the Strength Properties of Steel Fibre Reinforced Concrete Containing Slag and Corrosion Inhibitor." International Journal of Corrosion 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/595040.

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Corrosion in steel can be detrimental in any steel rebar reinforced concrete as well as in the case of steel fibre reinforced concrete. The process of corrosion occurring in steel fibre incorporated concrete subjected to corrosive environment was systematically evaluated in this study. Concrete specimens were prepared with steel fibre inclusions at 1.5%Vf(volume fraction) of concrete and were added in slag based concrete (containing manufactured sand) and replaced with cement at 20%, 40%, and 60% of total binder. Accelerated corrosion studies were carried out using alternate wetting and drying

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3

Дронов and Andrey Dronov. "THE PROPERTIES OF PITTING CORROSION OF STEEL REINFORCEMENT OF REINFORCED CONCRETE BEAMS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 2, no. 3 (2017): 32–36. http://dx.doi.org/10.12737/24678.

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Two types of steel reinforcement depassivation process: carbonation of concrete and chloride penetration are considered in the article. The comparison between the corrosion due to carbonation of concrete and the chloride-induced corrosion was carried out. It was found out, that chlorides induced corrosion is potentially more dangerous than that resulting from carbonation. Method of durable tests of reinforced concrete structures under the action of the gravitational load and the corrosive chloride environment is described in the article. The results of experimental research on reinforced concr

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4

Qin, Xian Ming, Chao Yan, Yue Li, and Juan Zhao. "Influence of Corrosion Inhibitor on Marine Concrete Corrosion Rate." Advanced Materials Research 446-449 (January 2012): 3508–12. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3508.

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Corrosion inhibitor have a significant influence on corrosion rate of marine concrete. In this paper, linear polarization method is used in reinforced concrete that under marine environment, and reinforced concrete is mixed with corrosion inhibitor. The results show that: corrosion inhibitor has a little influence on the basic mechanical properties of reinforced concrete, and it can effectively improve the corrosion resistance ability of reinforced concrete. For reinforced concrete of the same corrosion inhibitor content, with the decline of water-cement ratio, the steel corrosion rate descend

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5

Meneses, R. S., J. M. Moro, R. R. Aveldaño, and N. F. Ortega. "Influencia del espesor del recubrimiento de elementos de hormigón armado expuestos a procesos de corrosión y sometidos a cargas externas." Revista ALCONPAT 6, no. 2 (2016): 129–44. http://dx.doi.org/10.21041/ra.v6i2.134.

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Influencia del espesor del recubrimiento de elementos de hormigón armado expuestos a procesos de corrosión y sometidos a cargas externasRESUMENAl realizar estudios sobre corrosión en hormigón armado, es importante considerar en los ensayos, la acción de cargas externas, pues esta situación es la más frecuente en las estructuras. En este trabajo, se presentan los resultados obtenidos al exponer a un proceso de corrosión acelerada, a vigas de hormigón armado sometidas a esfuerzos flexionales, materializados con cargas, que generan iguales tensiones de tracción en las armaduras corroídas. Las vig

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6

Almeraya, Facundo, José Maria Bastidas, Andres A. Torres Acosta, and Citlalli Gaona Tiburcio. "Corrosion in Reinforced Concrete." International Journal of Corrosion 2012 (2012): 1. http://dx.doi.org/10.1155/2012/986186.

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7

Pepenar, Ioan. "Corrosion behaviour of reinforced concrete constructions in acid aggressive environments: case studies, laboratory tests and corrosion mechanisms." MATEC Web of Conferences 149 (2018): 01018. http://dx.doi.org/10.1051/matecconf/201814901018.

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The paper presents the results of research on the corrosion behaviour of reinforced concrete elements which compose the bearing structure of some constructions subjected to the corrosive action of acid aggressive agents, after a long-term service in a strongly aggressive environment. To evaluate the damage state of reinforced concrete elements/constructions, both “in situ” investigation of constructions and laboratory tests on concrete samples extracted from some elements damaged by corrosion, using a specific investigation methodology were performed. The results of the research revealed the e

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8

Mirsayapov, Ilshat, Samat Yakupov, and Majd Hassoun. "About concrete and reinforced concrete corrosion." IOP Conference Series: Materials Science and Engineering 890 (August 13, 2020): 012061. http://dx.doi.org/10.1088/1757-899x/890/1/012061.

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9

Okeniyi, Joshua Olusegun, Isaac Oluwaseun Oladele, Oluwafemi Michael Omoniyi, Cleophas Akintoye Loto, and Abimbola Patricia Idowu Popoola. "Inhibition and compressive-strength performance of Na2Cr2O7 and C10H14N2Na2O8·2H2O in steel-reinforced concrete in corrosive environments." Canadian Journal of Civil Engineering 42, no. 6 (2015): 408–16. http://dx.doi.org/10.1139/cjce-2014-0364.

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This paper studied corrosion-inhibition and compressive-strength performances of Na2Cr2O7 (sodium dichromate) and C10H14N2Na2O8·2H2O (ethylenediaminetetraacetic disodium salt: EDTA-Na2) admixtures in steel-reinforced concrete immersed in NaCl and in H2SO4 corrosive environments. Electrochemical methods were used for studying corrosion responses of different concentrations of the individual admixtures and their synergies, in the model that partially replace the toxic Na2Cr2O7 by the environmentally-friendly C10H14N2Na2O8·2H2O, in steel-reinforced concretes. After the electrochemical experiment,

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10

Moon, Kyung Man, Sung Yul Lee, Jae Hyun Jeong, and Myeong Hoon Lee. "Coating Thickness of Reinforced Concrete Affecting to Cathodic Polarization and Cyclic Voltammogram of Reinforced Steel." Key Engineering Materials 723 (December 2016): 741–47. http://dx.doi.org/10.4028/www.scientific.net/kem.723.741.

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The reinforced concretes are often exposed to severely corrosive environments such as sea water, contaminated water, acid rain and seashore etc.. Therefore, the reinforced steel bar embedded in the concrete is increasingly corroded in various environments mentioned above, and this corrosion problem is thought to be very important in terms of the safety and economic points of view. In this study, a multiple mortar test specimen(W/C:0.5) with variation of coating thickness was prepared and immerged in flowing seawater for five years. And, the effects of coating thickness affecting to cathodic po

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11

Potapov, Yuri B., Sergey A. Pinaev, Arutyun A. Arakelyan, and Andrei D. Barabash. "Polymer-Cement Material for Corrosion Protection of Reinforced Concrete Elements." Materials Science Forum 871 (September 2016): 104–9. http://dx.doi.org/10.4028/www.scientific.net/msf.871.104.

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The paper presents composition of innovative material used for corrosion protection of reinforced concrete structures and experimental data on the increase in cracking of reinforced concrete elements coated with polymer-cement protective layer against corrosive media.

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12

San Miguel, G. F., M. R. Alvarado, P. V. Tamez, R. G. Alcorta, R. M. Garza, and J. P. Farias. "Deterioro por corrosión de elementos de concreto armado de un edificio industrial." Revista ALCONPAT 2, no. 3 (2012): 195–210. http://dx.doi.org/10.21041/ra.v2i3.38.

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RESUMENLa corrosión de las estructuras de concreto armado se acentúa cuando son colocadas en ambientes con microclimas extremadamente agresivos. La habilidad para evaluar la corrosión de las varillas de refuerzo en estas estructuras y poder estimar la vida en servicio remanente es tema de estudios en muchas partes del mundo. Este trabajo muestra la importancia de implementar una metodología de inspección y diagnóstico que genere, a través del empleo de equipos especializados y tecnología de punta, datos confiables que permitan el desarrollo de procesos de planeación en las intervenciones de re

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13

Choe, Gyeongcheol, Yasuji Shinohara, Gyuyong Kim, Sangkyu Lee, Euibae Lee, and Jeongsoo Nam. "Concrete Corrosion Cracking and Transverse Bar Strain Behavior in a Reinforced Concrete Column under Simulated Marine Conditions." Applied Sciences 10, no. 5 (2020): 1794. http://dx.doi.org/10.3390/app10051794.

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This study performed accelerated corrosion tests on reinforced concrete (RC) specimens reinforced with transverse steel bars to evaluate the concrete cracking and rebar strain behaviors caused by rebar corrosion. Seven RC specimens were created with variable compressive strengths, rebar diameters, and concrete cover thicknesses. To mimic in-situ conditions, the accelerated corrosion tests applied a current to the longitudinal bar and transverse bar for different periods of time to create an unbalanced chloride ion distribution. These tests evaluated the amount of rebar corrosion, corrosion cra

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14

Troconis de Rincón, O., M. Sánchez, V. Millano, J. Bravo, and S. Delgado. "Enseñanzas de casos de inspección en sótanos." Revista ALCONPAT 2, no. 2 (2012): 104–13. http://dx.doi.org/10.21041/ra.v2i2.31.

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RESUMENEste trabajo muestra las enseñanzas obtenidas al evaluar y diagnosticar problemas por corrosión y estructurales en varios sótanos de diferentes tipos de edificaciones, ubicadas cerca y lejos de la costa. En este se reportan los resultados obtenidos de esta inspección, de los cuales se encuentran: levantamiento de daños, ensayos físico-químicos, mecánicos y electroquímicos que permitieron caracterizar el concreto y los daños por corrosión que puedan comprometer a las estructuras evaluadas. Dado que en la mayoría de los casos los sótanos se utilizan como estacionamientos, los problemas de

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15

Song, Liu Bin, Dao Wu Yang, Zhong Liang Xiao, and Feng Zhang. "Research on Effects of Inhibitors on Anti-Corrosion Performance of Reinforced Bar in the Concrete." Advanced Materials Research 239-242 (May 2011): 1195–98. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1195.

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The corrosion behavior of reinforcing bars in concrete was studied by simulating the 4×4 wire-beam electrode array. Different inhibitors were added to reinforced concrete. By measuring the open-circuit potential of an iron wire, the impact of different inhibitors on the corrosion of rebar in the concretes was studied after immersion in NaCl solution. The result showed that best protection was achieved by adding NaNO2 and aniline as inhibitors jointly to the concrete, as this combination maintained the open-circuit potential within the passivation range at all times, so ensuring the integrity o

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16

Yang, Li Ming, Hong Fa Yu, and Hai Yan Ma. "Stress Corrosion of High Performance Hybrid Fibers Reinforced Expansive Concrete Exposed to Magnesium Sulfate Solution." Advanced Materials Research 79-82 (August 2009): 115–18. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.115.

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Deterioration of fly ash concrete (FAC), high performance concrete (HPC), and high performance hybrid fibers reinforced expansive concrete (HPHFREC) subjected to combined action of flexural load and 5% magnesium sulfate solution is investigated. The change of dynamic modulus of elasticity (DME) was monitored and recorded as to observe the corrosion of concrete specimens in magnesium sulfate environment. Results show that in the initial exposure stage, the relative dynamic modulus of elasticity (RDME) of concretes increase steadily as a result of the reinforced effect of flexural load and nucle

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17

Guo, Xiao, Hongwei Wang, Kaizhong Xie, Tuo Shi, and Dan Yu. "Experimental and Numerical Study on the Influence of Corrosion Rate and Shear Span Ratio on Reinforced Concrete Beam." Advances in Materials Science and Engineering 2020 (September 8, 2020): 1–10. http://dx.doi.org/10.1155/2020/4718960.

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In order to study the influence of corrosion rate and shear span ratio on reinforced concrete beam, a numerical analysis method of corroded reinforced concrete beam was put forward. Bond-slip relationship formula between reinforcement and concrete was suggested. A three-dimensional finite element model of corroded reinforced concrete beam was established. Calculation method of ultimate bearing capacity for reinforced concrete beam was suggested. Ultimate bearing capacity experiment on 14 corroded reinforced concrete beams with different corrosion rates and shear span ratios was carried out. Nu

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18

Qiang, Yue, Li Li, and Ze Ping He. "Experiment Research on the Steel Fiber Reinforced Concrete in the Acid Environment." Advanced Materials Research 224 (April 2011): 224–28. http://dx.doi.org/10.4028/www.scientific.net/amr.224.224.

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For the purpose of studying the resistance of steel fiber reinforced concrete against the corrosion of different acid, test compressive strength and flexural strength of the steel fiber reinforced concrete of different volume rate after the corrosion of organic and inorganic acid, and express experiment results with the form of comprehensive corrosion coefficient and the flexural corrosion coefficient in order to reflect the corrosion degree. The results shows that, the organic corrosion has a stronger corrosion effect on the steel fiber reinforced concrete than the inorganic acid under the en

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19

Zhang, Wan You, Rui Yuan Zhang, and Lijuan Xi. "Corrosion of Reinforced Concrete in Accelerated Tests." Advanced Materials Research 610-613 (December 2012): 485–89. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.485.

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In order to study the correlation between accelerated corrosion and natural corrosion, reinforced surface morphology, steel potentials and corrosion quality were investigated by using full immersion and half immersion in this paper. The results showed that the effort of half immersion accelerated corrosion was similar to natural corrosion, and each of the tendencies of potential change was same, but the mechanisms of corrosion were different. The degree of steel corrosion, estimated by Faraday’s law, was slightly higher than the level of actual corrosion.

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20

Zheng, Zhupeng, Ying Lei, and Xin Xue. "Numerical Simulation of Monitoring Corrosion in Reinforced Concrete Based on Ultrasonic Guided Waves." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/752494.

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Numerical simulation based on finite element method is conducted to predict the location of pitting corrosion in reinforced concrete. Simulation results show that it is feasible to predict corrosion monitoring based on ultrasonic guided wave in reinforced concrete, and wavelet analysis can be used for the extremely weak signal of guided waves due to energy leaking into concrete. The characteristic of time-frequency localization of wavelet transform is adopted in the corrosion monitoring of reinforced concrete. Guided waves can be successfully used to identify corrosion defects in reinforced co

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21

Kolchunov, Vitaly, Natalia Androsova, and Tatyana Kolchina. "Crack Resistance Criteria for Reinforced Concrete Beams with Corrosion Damage in Strength Resource Assessment." Applied Mechanics and Materials 725-726 (January 2015): 740–45. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.740.

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In the framework of ultimate state calculation methods the paper presents some propositions for stress-strain state, crack resistance analysis and failure state of reinforced concrete structures with corrosion damage at supports. The work concerns the durability of concrete and reinforced concrete elements with corrosion damage. The theory for reinforced concrete with corrosion damage is presented for plane stress state

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22

Wang, Qianying, Jigang Zhang, Mingchao Shan, Bingying Yu, Yang Zhao, and Ran Yang. "Experimental Study on the Effect of Boric Acid Corrosion on the Performance of Reinforced Concrete." Advances in Materials Science and Engineering 2021 (June 18, 2021): 1–13. http://dx.doi.org/10.1155/2021/5534917.

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In this study, the effect of boric acid in the cooling water system of nuclear power plants on the durability of reinforced concrete was experimentally studied. The mechanical properties of reinforced concrete under boric acid solution environments were studied by accelerated test methods. In addition, the effect of boric acid on the electrochemical behavior of steel bar and microstructure of concrete was studied. The results showed that boric acid corrosion does not affect reinforced concrete to a large extent, as corrosion only occurs on the surface of reinforced concrete, and thus, the inte

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23

Lin, Yue Zhong. "On the Load of Reinforced Concrete Column by Seawater Corrosion." Advanced Materials Research 368-373 (October 2011): 975–78. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.975.

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The reinforced concrete construction of port, wharf, inshore platform etc, which expose in the bad environment, can suffer influence of the corrosion and lower its safety. Particularly with the seawater corrosion, the reinforced concrete construction will suffer to break easily and result a bigness of loss. Therefore, the construction's safe and dependable increasingly become the important problem that study by people. The paper tested the load about 15 experiment columns of reinforced concrete, which are eroded in the artificial seawater corrosion, studied the load changing of reinforced conc

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24

Melchers, Robert E. "Long-Term Durability of Marine Reinforced Concrete Structures." Journal of Marine Science and Engineering 8, no. 4 (2020): 290. http://dx.doi.org/10.3390/jmse8040290.

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The sustainability of reinforced concrete is critical, particularly for structures exposed to marine environments. Chlorides are implicated in causing or accelerating reinforcement corrosion and potentially earlier expensive repairs, yet there are many older reinforced concrete structures in good condition for many decades despite very high chloride levels at the reinforcement. The reasons for this are reviewed briefly, together with recent experimental work that better defines the role of chlorides. One is initiation of reinforcement corrosion but only through localized pitting at air-voids i

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Sun, Li, Zeyu Yang, Qiao Jin, and Weidong Yan. "Effect of Axial Compression Ratio on Seismic Behavior of GFRP Reinforced Concrete Columns." International Journal of Structural Stability and Dynamics 20, no. 06 (2020): 2040004. http://dx.doi.org/10.1142/s0219455420400040.

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Traditional reinforced concrete columns have demonstrated poor seismic performance especially in corrosive environment as the reinforcement bars experience severe corrosion under such conditions. To overcome the problem of steel corrosion, glass fiber-reinforced polymer (GFRP) reinforced concrete columns have gained significant attention in recent years. However, the seismic performance of GFRP reinforced concrete column is not well understood yet. One of the main challenges associated with the use of GFRP bars is its brittle behavior. Therefore, it is necessary to investigate the mechanical p

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Smolyago, G. A., A. V. Dronov, and N. V. Frolov. "MODELING OF REDUCTION IN THE CROSS-SECTIONAL AREA OF STEEL REINFORCEMENT IN CONCRETE UNDER THE ACTION OF CORROSIVE ENVIRONMENT." Proceedings of the Southwest State University 21, no. 1 (2017): 43–49. http://dx.doi.org/10.21869/2223-1560-2017-21-1-43-49.

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Process of depassivation of steel in concrete under the action of chloride corrosive environment is considered. Method of durable testing of bended reinforced concrete structures during corrosive period is described. Results of experimental research in steel reinforcement corrosion in reinforced concrete beams under the action of corrosive environment are described in the article. The diagram of corrosive potential changes during the testing time is given in the article. Measurements of corrosion potential were carried out by the corrosion analyzing instrument. Analysis of corrosive potential

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27

Zhang, Zhiqiang, Ruikai Gong, Heng Zhang, and Wanping He. "The Sustainability Performance of Reinforced Concrete Structures in Tunnel Lining Induced by Long-Term Coastal Environment." Sustainability 12, no. 10 (2020): 3946. http://dx.doi.org/10.3390/su12103946.

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At present, the damage caused by steel corrosion to structures has become a serious problem all over the world. In order to study the mechanical behaviors of tunnel lining structure system under the corrosive environment to rebars, first, the bending tests were performed to investigate the crack propagation behavior and structural bearing capacity of the reinforced concrete bending members degraded by corrosion. Secondly, the pull-out tests were performed to investigate the degradation of bonding strength between corroded rebars and the concrete. Finally, on the basis of the findings from the

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28

Zhou, Qun, Zhong He Shui, Yi De Xiao, and Chang Sheng Xu. "Effects of Coating/Electroplating on Corrosion Resistance of Steel Bar in Reinforced Concrete." Advanced Materials Research 446-449 (January 2012): 3176–79. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3176.

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One of the main reasons for the damage of reinforced concrete is the expansion caused by corrosion of steel bar in concrete. In this paper, the equivalent circuit that inflects corrosion process of steel bars in reinforced concrete was analyzed, with the A.C.Impedance Spectrum method. And the effects of surface treatment of the bars on corrosion resistance of the reinforced concrete were investigated. Study results show that the surface coating (plating) on the built-in reinforcement can effectively prevent corrosion of steel bar, thereby enhancing the durability of concrete structures.

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29

El‐Kurdey, Adel, and Ashraf Y. Hosny. "Corrosion of reinforced steel in concrete." Anti-Corrosion Methods and Materials 39, no. 7 (1992): 4–8. http://dx.doi.org/10.1108/eb007311.

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30

Chung, D. D. L. "Corrosion Control of Steel-Reinforced Concrete." Journal of Materials Engineering and Performance 9, no. 5 (2000): 585–88. http://dx.doi.org/10.1361/105994900770345737.

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Soudki, Khaled A., and Ted G. Sherwood. "Behaviour of reinforced concrete beams strengthened with carbon fibre reinforced polymer laminates subjected to corrosion damage." Canadian Journal of Civil Engineering 27, no. 5 (2000): 1005–10. http://dx.doi.org/10.1139/l00-052.

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The viability of carbon fibre reinforced polymer (CFRP) laminates for the strengthening of corrosion damaged reinforced concrete bridge girders is addressed in this paper. Ten reinforced concrete beams (100 × 150 × 1200 mm) with variable chloride levels (0-3%) were constructed. Six beams were strengthened by externally epoxy bonding CFRP laminates to the concrete surface. The tensile reinforcements of three unstrengthened and four strengthened specimens were subjected to accelerated corrosion by means of impressed current to 5, 10, and 15% mass loss. Strain gauges were placed on the CFRP lamin

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Ma, Zhiming, Tiejun Zhao, Jianzhuang Xiao, and Ting Guan. "Evaluation of rebar corrosion in reinforced concrete under freeze-thaw environment and protection measures." Anti-Corrosion Methods and Materials 63, no. 2 (2016): 128–36. http://dx.doi.org/10.1108/acmm-11-2014-1461.

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Purpose – Rebar corrosion in reinforced concrete is the major reason for the durability degradation, especially under harsh environment. This paper presents an experiment conducted to investigate the influence of freeze-thaw cycles on the rebar corrosion in reinforced concrete. The purpose of this paper is to provide fundamental information about rebar corrosion under frost environment and improvement measures. Design/methodology/approach – The related elastic modulus and compressive strength of different concrete specimens were measured after different freeze-thaw cycles. The accelerated reba

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Zhu, Fangzhi, Zhiming Ma, and Tiejun Zhao. "Influence of Freeze-Thaw Damage on the Steel Corrosion and Bond-Slip Behavior in the Reinforced Concrete." Advances in Materials Science and Engineering 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/9710678.

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This paper mainly studies the behavior of steel corrosion in various reinforced concrete under freeze-thaw environment. The influence of thickness of concrete cover is also discussed. Additionally, the bond-slip behavior of the reinforced concrete after suffering the freeze-thaw damage and steel corrosion has also be presented. The results show that the freeze-thaw damage aggravates the steel corrosion in concrete, and the results become more obvious in the concrete after suffering serious freeze-thaw damage. Compared with the ordinary concrete, both air entrained concrete and waterproofing co

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Liu, Xiao Chun, Jun Wei, and Zhen Yu Wang. "Use of Vibrating Wire Strain Gauges to Monitor Corrosion-Induced Deterioration of Concrete." Key Engineering Materials 517 (June 2012): 357–62. http://dx.doi.org/10.4028/www.scientific.net/kem.517.357.

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Steel reinforcement corrosion is always one of the most significant incentives of concrete structure deterioration, especially under severe chloride erosion environment. In order to describe the whole process of concrete deterioration induced by reinforcement corrosion, the mechanism of rust expansion and crack propagation in concrete was analyzed from the perspective of elastoplastic mechanics and fracture mechanics firstly, and experimental study was carried out to use vibrating wire strain gauges for monitoring corrosion-induced concrete deterioration process. The mechanism analysis of corr

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Radhi, Mushtaq S., Maan Hassan, and Iqbal Gorgis. "Compressive Performance of Corroded Reinforced Concrete Columns." Engineering and Technology Journal 38, no. 11A (2020): 1618–28. http://dx.doi.org/10.30684/etj.v38i11a.1545.

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Corrosion of reinforcement has been identified as the deterioration mechanism of reinforced concrete structures, which seriously affects the safety and integrity of structures. The corrosion of the embedded reinforcing steel in concrete is a major problem facing civil engineers today, which initiates 80% of the reinforced concrete structures deterioration. This paper reveals the outcomes of an experimental investigation on the mechanical performance (residual strength) of circular steel reinforced columns which have been damaged by corrosion of the steel rebar. Small scale circular reinforced

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Raczkiewicz, Wioletta, and Paweł Grzegorz Kossakowski. "Electrochemical Diagnostics of Sprayed Fiber-Reinforced Concrete Corrosion." Applied Sciences 9, no. 18 (2019): 3763. http://dx.doi.org/10.3390/app9183763.

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Sprayed fiber-reinforced concrete is used in construction for the execution and repair of reinforced concrete elements. It is believed that the addition of steel fibers is most effective, due to their parameters and low costs. Some researchers, however, suggest that the addition of steel fibers can contribute to the initiation of corrosion of the main reinforcement. In consideration of the differences of opinion on the corrosion resistance of sprayed fiber-reinforced concrete, it has become necessary to analyze this issue. The article presents comparative studies of corrosion assessments of th

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Zhang, Liye, Limin Sun, and Lijuan Dong. "Experimental Study on the Relationship between the Natural Frequency and the Corrosion in Reinforced Concrete Beams." Advances in Materials Science and Engineering 2021 (July 22, 2021): 1–10. http://dx.doi.org/10.1155/2021/9976738.

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Due to many nondamage factors such as temperature, humidity, carbonation, and corrosion effects on natural frequency, the key problem of the application frequency-based method to detect damage is to reveal the rules of these factors affect natural frequency and further to eliminate their effects. The long-term characteristics of reinforced concrete structures require a lot of attention, especially in corrosive environment. In this paper, an experimental investigation was conducted to study the deflection and natural frequency of reinforced concrete beam in a marine environmental chamber for si

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Taranza, Luboš, and Rostislav Drochytka. "Corrosion Inhibitors as a Prevention." Advanced Materials Research 897 (February 2014): 144–48. http://dx.doi.org/10.4028/www.scientific.net/amr.897.144.

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Corrosion of reinforcements is one of the most frequent causes of defects of reinforced concrete structures resulting in significantly shortened service life of constructions. By using of corrosion inhibitors the structure failures can be prevented or already started corrosions slowed down and thus to markedly prolong the service life of constructions.

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Yang, Qiao, and Xiao E. Zhu. "A Study on Carbon Fiber Influence to Rebar Corrosion in Concrete." Applied Mechanics and Materials 204-208 (October 2012): 3114–18. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3114.

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Rebar corrosion test of Carbon Fiber Reinforced Polymer (CFRP) concrete was did. Carbon fiber in concrete improved the compression strength of the concrete, but width and number of concrete cracks was not reduced, carbon fiber has not obvious act for improving concrete corrosion crack behavior. CFRP concrete Corrosion potential was a little high than common concrete, carbon fiber has not obvious act for improving concrete behavior in protecting steel beyond corrosion. The porosity of the carbon fiber reinforced polymer concrete was twice of the common concrete, carbon fiber added to concrete l

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Nguyen, Wilson, Jacob F. Duncan, Paulo J. M. Monteiro, and Claudia P. Ostertag. "Multi-Scale Characterization of Corrosion Initiation of Preloaded Hybrid Fiber-Reinforced Concrete Composites." Key Engineering Materials 711 (September 2016): 195–202. http://dx.doi.org/10.4028/www.scientific.net/kem.711.195.

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Many reinforced concrete structures susceptible to corrosion damage are subjected to externally applied loads, causing cracking. These cracks increase the permeability of the material, accelerating the ingress of corrosion-inducing deleterious agents. In this paper, the effect of multiple microcracking and macrocrack formation on corrosion initiation was investigated. A hybrid fiber-reinforced concrete (HyFRC), which forms ductile, distributed microcracking prior to dominant crack localization due to multiple tiers of fiber reinforcement, is being studied for its performance against corrosion

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Christodoulou, Christian, Chris Goodier, and Gareth Glass. "Towards arresting reinforced concrete corrosion – a review." MATEC Web of Conferences 199 (2018): 05001. http://dx.doi.org/10.1051/matecconf/201819905001.

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This work reviews developments in the understanding of chloride induced corrosion of steel in concrete from both a kinetic and thermodynamic perspective. Corrosion damage is at least in part attributed to the production of acid at sites of corrosion initiation. Solid phase inhibitors provide a reservoir of hydroxyl ions to inhibit damage. Pit re-alkalisation is identified as an important protective effect in electrochemical treatments used to arrest corrosion. A process like pit re-alkalisation is achieved more easily by impressing current from sacrificial anodes using a power supply which may

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Zhou, Yingwu, Yaowei Zheng, Lili Sui, Biao Hu, and Xiaoxu Huang. "Study on the Flexural Performance of Hybrid-Reinforced Concrete Beams with a New Cathodic Protection System Subjected to Corrosion." Materials 13, no. 1 (2020): 234. http://dx.doi.org/10.3390/ma13010234.

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Steel corrosion is considered as the main factor for the insufficient durability of concrete structures, especially in the marine environment. In this paper, to further inhibit steel corrosion in a high chloride environment and take advantage of the dual-functional carbon fiber reinforced polymer (CFRP), the impressed current cathodic protection (ICCP) technique was applied to the hybrid-reinforced concrete beam with internally embedded CFRP bars and steel fiber reinforced polymer composite bar (SFCB) as the anode material while the steel bar was compelled to the cathode. The effect of the new

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Blunt, J., G. Jen, and C. P. Ostertag. "Enhancing corrosion resistance of reinforced concrete structures with hybrid fiber reinforced concrete." Corrosion Science 92 (March 2015): 182–91. http://dx.doi.org/10.1016/j.corsci.2014.12.003.

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Yi, Chao Jue. "Durability Study of Reinforced Concrete Bridge." Applied Mechanics and Materials 204-208 (October 2012): 2061–64. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2061.

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Steel corrosion is the most important and direct factor of reinforced steel concrete bridge durability damage as well as one of the main forms of the concrete bridge durability destruction. This article gives a comprehensive discuss from the corrosion mechanism, influencing factors and consequences.

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Yang, Wei Jun, Hong Jia Huang, Wen Yu Jiang, and Yi Bin Peng. "Research on Shear Bearing Capacity of Reinforced Concrete Short Beam in Salt-Fog Environment." Advanced Materials Research 455-456 (January 2012): 1079–83. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.1079.

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Shantou atmospheric salt-fog environment is simulated with the comprehensive salt spray test chamber. By using reinforced concrete short beams under different water-cement radio, different corrosion time, the inclined section degradation rules of the corrosive reinforced concrete members are researched for establishing shear capacity of short beam formulas in salt-fog environment.

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Ren, Zhao Jun. "Influence of Water Repellent Treatment on Corrosion of Steel in Concrete with Chloride Ingress." Advanced Materials Research 368-373 (October 2011): 2430–36. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.2430.

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Abstract. Corrosion of steel due to chloride ingress is a worldwide problem in reinforced concrete. In order to control such chloride-induced corrosion and evaluate the effectiveness of silane water repellent surface treatment on steel corrosion in concretes with different chloride ingress, two series of reinforced concrete specimens were used to investigate experimentally. In the first series, concrete was applied permanent migrating chloride from a reservoir of 3% NaCl solution which was placed on the top surface of each specimen. For comparison, the same concrete was made with silane water

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Hu, Chang-Shun, Shiping Yin, and Meng-Ti Yin. "Study on the interfacial bonding behaviour of corroded steel bars and TRC constrained concrete." Anti-Corrosion Methods and Materials 66, no. 5 (2019): 661–70. http://dx.doi.org/10.1108/acmm-12-2018-2040.

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Purpose This paper aims to evaluate the bonding properties of textile reinforced concrete (TRC)-confined concrete and corroded plain round bars. Design/methodology/approach The bonding performance of three types of specimens (not reinforced, reinforced after corrosion and reinforced before corrosion) was studied by a central pull out test. Findings The ultimate bond strength between the corroded steel bars and the concrete is improved when the corrosion ratio is small. After cracking, the degree of corrosion continues to grow and the ultimate bond strength decreases. TRC reinforcement has no d

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Jeong, Jin A. "Experimental Study of Corrosion Sensors for the Design Technology of Bridge Longevity." Applied Mechanics and Materials 597 (July 2014): 421–24. http://dx.doi.org/10.4028/www.scientific.net/amm.597.421.

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Corrosion of steel reinforcement is a major factor in the deterioration of harbor and bridge structure. Steel corrosion in concrete must be checked for investigating the condition of a reinforced concrete structure. The several way how to measuring corrosion condition of reinforced concrete, but the corrosion potential measurement is a very simple, rapid, cost-effective and non-destructive technique to evaluate the severity of corrosion in reinforced concrete structure. However some particular situations may not relate to the reinforcement corrosion probability and a simple comparison of the c

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Constantinescu, Vasile, Gheorghe Veniamin Bogus, Rares George Taran, and Ioan Carcea. "New Composite Materials that Reduce the Effect of Reinforcement Corrosion." Advanced Materials Research 837 (November 2013): 265–70. http://dx.doi.org/10.4028/www.scientific.net/amr.837.265.

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Concrete is a complex material of construction that enables the high compressive strength of natural stone to be sed in any configuration. In tension, however, concrete can be no stronger than the bond between the cured cement and the surfaces of the aggregate. This is generally much lower than the compressive strength of the concrete. Concrete is therefore frequently reinforced, usually with steel. When a system of steel bars or a steel mesh is incorporated in the concrete structure in such a way that the steel can support most of the tensile stresses and leave the immediately surrounding con

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Sounthararajan, V. M., and A. Sivakumar. "Corrosion Measurements in Reinforced Fly Ash Concrete Containing Steel Fibres Using Strain Gauge Technique." International Journal of Corrosion 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/724194.

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Corrosion of steel bars in concrete is a serious problem leading to phenomenal volume expansion and thereby leading to cover concrete spalling. It is well known that the reinforced concrete structures subjected to chloride attack during its service life cause these detrimental effects. The early detection of this damage potential can extend the service life of concrete. This study reports the comprehensive experimental studies conducted on the identification of corrosion mechanism in different types of reinforced concrete containing class-F fly ash and hooked steel fibres. Fly ash replaced con

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