An experimental study on assessing the corrosion performance of steel reinforcement for the durability of concrete

Kumar, Vijay; Joseph, J. Daniel Ronald; Ashok, M. H.; Kumar, MP Suresh

doi:10.1088/1757-899x/989/1/012025

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…It would be good to enhance the considerable relevance of that work with experimental data or calculation results according to acting norms. An experimental study to assess the initial behavior of reinforcement of different types under controlled conditions and in the conditions of simulated marine environment is reported in paper [26]. It was established that the resistance to polarization of machined reinforcement is 1.8 times greater than that of corrosion-resistant reinforcement.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development methodology of determinating residual carrying capacity of reinforced concrete beams with damages tensile reinforcement which occurred during loading

Vegera

Vashkevych

Blikharskyy

et al. 2021

EEJET

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This paper reports the improved and verified procedure for calculating reinforced concrete beams affected by damage to stretched reinforcement when loaded. The main results from testing the reinforced concrete beams with damage in the stretched zone in the form of one hole in the reinforcement in the middle of the beam are given. The variable parameter of the study was the level of load resulting in the damage. It acquired values of 0, 30 %, 50 %, 70 % of the bearing capacity of control undamaged samples. Overall, the results of testing 12 samples are given. A new procedure has been proposed for taking into consideration changes in the mechanical characteristics of stretched reinforcement arising from its damage. This makes it possible to more accurately establish the bearing capacity of reinforced concrete bended elements affected by damage to their reinforcement during operation. The analysis of the calculation, compared with experimental quantities, led to a conclusion that the strain model could determine when the bearing capacity of reinforced concrete beams without damage and with damage to working reinforcement is exhausted. Based on the improved algorithm, the principle of using a strain model was proposed to establish when the bearing capacity of damaged samples, taking into consideration the effect of the load level, is exhausted. The theoretical estimation, considering when the bearing capacity is exhausted, showed results that are 3...21 % less than the experimental values, which ensures reliability of calculation of such structures. The proposed calculation provides a new approach to determining the bearing capacity of reinforced concrete beams damaged during operation. That, in turn, makes it possible to more accurately determine the residual bearing capacity of structures and increases the safety of their operation.

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development methodology of determinating residual carrying capacity of reinforced concrete beams with damages tensile reinforcement which occurred during loading

Vegera

Vashkevych

Blikharskyy

et al. 2021

EEJET

View full text Add to dashboard Cite

show abstract

“…The theoretical foundations for modeling the structures' interaction processes with the environment, calculating their durability are laid down in [1], the design of the reinforced concrete engineering structures' durability, taking into account degradation processes in concrete and reinforcement under the action of various aggressive media in a deterministic and probabilistic setting, is considered in [2]. Currently, a large number of studies are devoted to the experimental study of the processes of corrosion in concrete and reinforcement [3][4][5][6][7], as well as the measurement of the corrosion rate directly in real time [8,9]. Methods of probabilistic modeling of concrete and reinforcement wear and destruction during the propagation of corrosion and calculation of the reinforced concrete structures' reliability are considered in [10][11][12][13].…”

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confidence: 99%

Estimation of the industrial building reinforced concrete beams’ residual life under corrosive media influence

et al. 2021

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The dominant factor determining chemical industry objects’ durability is the corrosive wear of the stretched reinforcement and the compressed zone of concrete. The article presents a methodology and results of a numerical assessment of the residual life of the reinforced concrete frame beams of an industrial building operating in an aggressive environment. According to the full-scale engineering survey results, the most damaged frame structures - the beams of the intermediate floors were identified. The period of concrete protective layer complete neutralization, the degree of corrosion damage to the working reinforcement, the compressed concrete neutralized layer depth, the change in its strength characteristics with depth and the degree of its heterogeneity were determined by the field measurements using the standard and non-standard methods of non-destructive testing. A linear law of the accumulation of corrosion damage to concrete in the compressed zone and the rate of corrosion damage in the working reinforcement after the concrete protective properties’ exhaustion is adopted. A normative design apparatus is used for the first group of limiting states in relation to the most loaded section. For an adequate assessment and prediction of the residual resource, the main emphasis is on experimental and diagnostic methods.

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Monitoring and Accelerating Methods of Corrosion for Reinforced Concrete: A Review

Nayak,

Disale,

Suryawanshi

et al. 2024

Macromolecular Symposia

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Corrosion is the irreversible, interfacial reaction of metals in the presence of an electrochemical environment which ultimately results in the deterioration of metals. Corrosion of reinforcement is the major problem in the reinforced concrete (RC) structure. Corrosion of reinforcement is a slow process because of the protective layer of concrete. Even in a severely corrosive environment corrosion process takes time to be initiated and propagated. Since to carry out research work, some techniques are required to accelerate the corrosion process in the shortest period. To overcome this problem, in the past, many researchers use a different method to accelerate the corrosion of steel in concrete. In this paper, a review is presented of various techniques used for accelerated corrosion testing. The suitability of reviewed methods on corrosion acceleration for several research works is presented. After that few case studies review to make use of various predicted empirical models and an experimental technique for predicting corrosion rate and the assessment of the remaining life of the structure. And finally, the paper is concluded by comparing the natural method of corrosion and the accelerated method of corrosion and the future scope of accelerated corrosion.

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An experimental study on assessing the corrosion performance of steel reinforcement for the durability of concrete

Cited by 5 publications

References 15 publications

Development methodology of determinating residual carrying capacity of reinforced concrete beams with damages tensile reinforcement which occurred during loading

Development methodology of determinating residual carrying capacity of reinforced concrete beams with damages tensile reinforcement which occurred during loading

Estimation of the industrial building reinforced concrete beams’ residual life under corrosive media influence

Monitoring and Accelerating Methods of Corrosion for Reinforced Concrete: A Review

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