Effects of reinforcement configuration and sustained load on the behaviour of reinforced concrete beams affected by reinforcing steel corrosion

Hariche, L.; Ballim, Y.; Bouhicha, M.; Kenai, Said

doi:10.1016/j.cemconcomp.2012.07.010

Cited by 72 publications

(34 citation statements)

References 5 publications

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“…Appropriate design and construction of reinforced concrete structure ensured the protection of steel against corrosion during the service life of the structure. Nevertheless, this concrete cover protection to the reinforcement can be deteriorated by aggressive agents leading to the corrosion of the steel in concrete (Hariche et al 2012).…”

Section: Generalmentioning

confidence: 99%

Corrosion Resistance Of High-Performance Composite Beams

Hossain¹

2021

Preprint

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The research concentrated on the corrosion resistance of reinforced self-consolidating concrete (SCC), lightweight SCC (LWSCC), fiber reinforced LWSCC (FRLWSCC), Engineered cementitious composite (ECC) and composite (ECC-SCC/LWSCC) beams. The performance of corroded beams were analyzed based on current measurements, half-cell potential readings, crack pattern/width, rebar mass loss and diameter reduction from accelerated corrosion tests. Corroded and their companion uncorroded beams were tested to failure under four-point loading to evaluate load-deflection response, crack pattern, 1st flexure/diagonal cracking load, failure load and failure modes. Composite beams with higher ECC layer thickness exhibited superior corrosion resistance than their lower thickness counterparts and full depth SCC or LWSCC counterparts as well as performance of beams with ECC wrap was better than those with layer. Overall, ECC beams can be a superior alternative of their conventional counterparts and ECC can be used as layer or wrapping in conventional/LWSCC beams to enhance corrosion resistance and structural performance

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Section: Generalmentioning

confidence: 99%

Corrosion Resistance Of High-Performance Composite Beams

Hossain¹

2021

Preprint

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“…al., 1996). El comportamiento que se espera de una estructura que está sometida a los efectos de la corrosión y en simultáneo bajo la acción de cargas externas, es diferente al de una estructura que a la que no se le aplican cargas, por este motivo las ejecuciones de algunas investigaciones fueron destinadas al estudio de esta temática, aunque son escasas en el contexto de la temática (Hariche et al, 2012;Malumbela et al, 2009;Yu et al, 2015). Con relación al estado tensional de las armaduras se puede decir que introduce una cierta incertidumbre en los procesos corrosivos y sus consecuencias.…”

Section: Introductionunclassified

Mejoras en La Durabilidad De Vigas De Hormigón Reciclado Con Tratamiento Sometidas a Cargas Externas

Meneses¹,

Moro²,

Ortega³

2019

Memorias Conpat 2019

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La utilización de hormigones reciclados en estructuras resistentes es una alternativa de construcción sustentable. Sin embargo, este tipo de hormigones presenta características durables diferentes a aquellos elaborados en forma convencional, y por lo tanto afectan el comportamiento frente a ambientes agresivos de las estructuras en las que se utilizan dichos materiales. En este trabajo se presentan los resultados obtenidos al someter a un proceso de corrosión acelerada a vigas de hormigón armado, solicitadas a distintos esfuerzos flexionales. Se utilizaron hormigones reciclados con y sin tratamiento sobre los agregados de hormigón triturado. Se apreció la influencia positiva del tratamiento aplicado, desde el punto de vista durable. Por otra parte, se puso de manifiesto la influencia de la solicitación externa.

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“…In addition, most of the existing research was only focused on one damage agent, such as acid deposition, thermal stress, or mechanical loading (Haber et al, 2012). Coupled damage environment, such as acidic loading effect, can have a more significant effect on the deterioration of concrete structures (Bassuoni and Nehdi, 2009; Hariche et al, 2012; Yoon et al, 2000). Therefore, it is necessary to study the degradation mechanism of CFRP-reinforced concrete structures under the acidic loading effect, which is the motivation of this study.…”

Section: Introductionmentioning

confidence: 99%

Exploratory experimental study on flexural behavior of CFRP-reinforced concrete beams subjected to acidic loading effect

Luan

Fan

Chen

et al. 2018

Advances in Structural Engineering

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This article presents an exploratory study on the flexural behavior of carbon fiber–reinforced polymer–reinforced concrete beams subjected to acidic loading effect. To this end, an artificial acid rain with a pH level of 1.5 was prepared by mixing sulfate and nitric acid solutions. Eight reinforced concrete beams with/without carbon fiber–reinforced polymer applications were constructed and conditioned using the artificial acid rain. During conditioning, bending loads were applied to the top surfaces of the beams to simulate the acidic loading action. Three carbon fiber–reinforced polymer reinforcement schemes (corrosion reinforcement, reinforcement corrosion, and cracking reinforcement) were considered. After conditioning, the length and quantity of initial cracks in the beams were recorded. A combined ultrasonic–rebound method was then adopted to measure the strength and corrosion depth of the concrete and evaluate the beams’ integrity. Next, four-point bending tests were conducted to study the beams’ flexural behavior. It can be concluded that all beams deteriorated with the increase of the corrosion time. Carbon fiber–reinforced polymer–reinforced concrete beams performed better than normal reinforced concrete beams under the acidic loading effect. The initial cracks can influence the flexural behavior of carbon fiber–reinforced polymer–reinforced concrete beams.

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Effects of reinforcement configuration and sustained load on the behaviour of reinforced concrete beams affected by reinforcing steel corrosion

Cited by 72 publications

References 5 publications

Corrosion Resistance Of High-Performance Composite Beams

Corrosion Resistance Of High-Performance Composite Beams

Mejoras en La Durabilidad De Vigas De Hormigón Reciclado Con Tratamiento Sometidas a Cargas Externas

Exploratory experimental study on flexural behavior of CFRP-reinforced concrete beams subjected to acidic loading effect

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