Durability of a reinforced concrete structure exposed to marine environment at the Málaga dock

Torres, Julio; Ramos, Nuria Rebolledo; Chinchón-Payá, Servando; Arcila, Isabel Helices; Toledo, Antonio Silva; Sanjuán, Marta Llorente; Soto, Sergio Agulló; García, Fidel Otero; Haan, Leendert de

doi:10.1016/j.cscm.2022.e01582

Cited by 8 publications

(9 citation statements)

References 31 publications

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“…The results evidence the significant influence of chloride penetration as the main catalyst for the structure's deterioration after prolonged exposure. A similar result was obtained by Torres Martín et al [161] in the analysis of a 22-year-old breakwater's crow wall, where chloride concentrations exceeded the critical values given by the regulations up to a depth of 150 mm and immediate repair and protection of the structure was advised. The authors used several tests including ultrasonic pulse velocity, concrete resistivity, and corrosion potential, among others.…”

Section: Field Testingsupporting

confidence: 82%

Degradation Models and Maintenance Strategies for Reinforced Concrete Structures in Coastal Environments under Climate Change: A Review

Rincon,

Moscoso,

Hamami

et al. 2024

Buildings

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Modern engineering faces challenges in ensuring technical standards for service, durability, and sustainability. Political, administrative, and budgetary factors, coupled with climate change, pose tasks to structural integrity, affecting industries and economies. Marine infrastructures represent a strategic asset of a country as they handle a large part of the economic exchanges. This article analyzes five essential factors that play a fundamental role in the performance analysis of coastal structures: chloride-induced corrosion, degradation models, maintenance strategies, monitoring, and climate change. We start with reinforcement corrosion, which is considered as the main cause of distress, particularly in coastal zones, for the long-term behavior of structures. Additional pressure from the influences of climate change is becoming evident and extreme, leading to a reduction in capacity. To guarantee the lifespan of infrastructures, degradation models contribute by estimating the long-term performance of the asset as a strategic piece to the development of effective maintenance solutions. Artificial Neural Networks (ANNs) have gained recent prominence in this field due to their ability to learn intricate patterns from historical data, making them valuable instruments for predicting structural deterioration. Additionally, quantifying the condition of the structure from monitoring data plays a crucial part in providing information on the current situation of the structure. Finally, this review summarizes the challenges associated with the maintenance of aging marine structures considering aspects such as corrosion, monitoring, and the future challenges this area will face due to climate change.

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Section: Field Testingsupporting

confidence: 82%

Degradation Models and Maintenance Strategies for Reinforced Concrete Structures in Coastal Environments under Climate Change: A Review

Rincon,

Moscoso,

Hamami

et al. 2024

Buildings

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show abstract

“…The values obtained in previous studies are then applied to the case of a structure located in a port in Spain. 43 Given the scope of this work, it has been approached deterministically by assigning a constant value to each model parameter. Figure 5 shows the predicted profile of chloride concentrations after 100 years for the following deterministic parameter values from 43 : D ns = 5.6*10 À12 m 2 /s and C S = 4.7%cem.…”

Section: Durability Consequencesmentioning

confidence: 99%

“…43 Given the scope of this work, it has been approached deterministically by assigning a constant value to each model parameter. Figure 5 shows the predicted profile of chloride concentrations after 100 years for the following deterministic parameter values from 43 : D ns = 5.6*10 À12 m 2 /s and C S = 4.7%cem. This figure also shows the range of concentrations from which depassivation occurs for the different grades of reinforcement in Figure 4.…”

Section: Durability Consequencesmentioning

confidence: 99%

Stainless steel reinforcement: New material in the latest draft of second‐generation Eurocode 2

Matres

Fernández

López³

et al. 2023

Structural Concrete

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The durability of reinforced concrete structures exposed to aggressive environments is affected by corrosion of carbon steel reinforcement. For this reason, it is of great practical interest to look for alternative solutions guaranteeing durability through the incorporation of corrosion‐resistant materials, such as stainless steel rebars. This type of steel is specially recommended for structures with a long lifespan, located in aggressive environments, with chlorides or de‐icing salts, and for structures where repair, inspection and rehabilitation is complicated. This solution presents a challenge from the point of view of the materials themselves, the mechanical design and their durability. This article presents the material properties of stainless steel and their influence on concrete structures. Furthermore, it is explained how these properties have been taken into account in the latest draft of the second‐generation Eurocode 2.

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“…Due to complying with current regulations, reinforced concrete structures often fail to reach their intended service life due to various factors [19][20][21][22]. However, there is currently no tool available to accurately evaluate these structures, which makes proper maintenance difficult.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, real-time monitoring results should be incorporated and analysed to enable a shift from reactive repair to proactive diagnosis. This transition will influence the cost and scope of any necessary repairs [19,[26][27][28]. In order to incorporate artificial intelligence tools in infrastructure maintenance, it is necessary to have precise measurement databases.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Reinforced Concrete Corrosion: Active and Passive Bars Exposed to Climate

Rebolledo,

Torres,

Silva

et al. 2024

Applied Sciences

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The durability of reinforced concrete structures is a significant concern, with corrosion of reinforcement being a leading cause of reduced durability. To ensure accurate models, it is necessary to calibrate or validate them with direct measurements of the structures, specifically monitoring durability-related parameters. The heterogeneity of structures and the dispersion of the parameters considered in models make this calibration or validation essential. To enable the predictive maintenance of structures, it is essential to monitor the parameters related to their durability. This article presents the results of the monitoring of the temperature, corrosion potential, resistivity, and corrosion rate of two structural components, a beam and a tendon, for over 10 months. The obtained values were correlated with the climate to which they were exposed. The corrosion rate can be correlated with the influence of climate, enabling real-time estimation of section loss. This is a necessary step towards the digitization of structures or the development of digital twins that incorporate the effect of corrosion.

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Durability of a reinforced concrete structure exposed to marine environment at the Málaga dock

Cited by 8 publications

References 31 publications

Degradation Models and Maintenance Strategies for Reinforced Concrete Structures in Coastal Environments under Climate Change: A Review

Degradation Models and Maintenance Strategies for Reinforced Concrete Structures in Coastal Environments under Climate Change: A Review

Stainless steel reinforcement: New material in the latest draft of second‐generation Eurocode 2

Monitoring of Reinforced Concrete Corrosion: Active and Passive Bars Exposed to Climate

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