Case studies of concrete deterioration in a marine environment in Portugal

Costa, A.; Appleton, Júlio

doi:10.1016/s0958-9465(01)00037-3

Cited by 105 publications

(35 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As shown in Fig. 1(a) and (b), marine concrete structures are directly exposed to harsh environments, and their service lives can be reduced to less than their original design, and/or their planned life expectancy (Costa and Appleton, 2002;Kim et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Tensile Bond Characteristics between Underwater Coating Materials and Concrete Substrate

Kim

Jeong

Kang

et al. 2018

J Korean Soc Coast Ocean Eng

View full text Add to dashboard Cite

In this study, we investigated the tensile bond characteristics of underwater coating materials, in order to obtain useful information in support of repair work for marine and coastal concrete structures. Test variables included type of underwater coating, surface conditions of the concrete substrate, and environmental conditions. Pull-off tensile bond strength was measured at 24 h after applying underwater coatings to concrete substrates, in compliance with the procedures specified in ASTM C1583. Failure modes (coating, interface, and parent concrete) for each coating were identified through visual inspection, and comparisons were made based on measured bond strength. The tensile bond strength decreased underwater compared to that under dry conditions, while no significant effect of surface roughness on the measured bond strength was observed in underwater tests. Key aspects that need to be considered regarding selection and use of underwater coating materials for marine and coastal concrete structures were discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Tensile Bond Characteristics between Underwater Coating Materials and Concrete Substrate

Kim

Jeong

Kang

et al. 2018

J Korean Soc Coast Ocean Eng

View full text Add to dashboard Cite

show abstract

“…Tests performed for analyzing corrosion are half-cell potential, potentiodynamic, accelerated electrolytic corrosion tests, and accelerated carbonation test. Costa and Appleton (2002) [59] described a series of case studies of different types of concrete structures, subjected to harsh marine environment that deteriorated due to chloride-induced corrosion. Tests performed for indepth inspection are chloride content, electrical resistivity, and half-cell potential using Ag/AgCl electrode.…”

Section: Brief Literature Reviewmentioning

confidence: 99%

Review of Nondestructive Testing Methods for Condition Monitoring of Concrete Structures

Verma

Bhadauria²,

Akhtar

2013

Journal of Construction Engineering

124

View full text Add to dashboard Cite

The deterioration of concrete structures in the last few decades calls for effective methods for condition evaluation and maintenance. This resulted in development of several nondestructive testing (NDT) techniques for monitoring civil infrastructures. NDT methods have been used for more than three decades for monitoring concrete structures; now it has been recognized that NDT plays an important role in the condition monitoring of existing RC structures. NDT methods are known to be better to assess and evaluate the condition of RC structures practically. This paper reviewed several available NDT methods developed and used in the last few decades.

show abstract

“…Early signs of deteriorations can be found in many structures. The main reasons for the inadequate performance of concrete structures are poor workmanship and a lack of knowledge concerning the relevant deterioration mechanisms, which results in insufficient planning and incorrect estimations of the environmental effects (Costa and Appleton, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Actually, an increasing number of studies are being conducted on chloride-induced corrosion in real structures (Costa and Appleton, 2002;Medeiros et al, 2013;Shekarchi et al, 2011;Papé and Melchers, 2011;Melchers and Li, 2009). …”

Section: Introductionmentioning

confidence: 99%

Service-Life Assessment of Existing Precast Concrete Structure Exposed to Severe Marine Conditions

Segura

Cavalaro

Fuente

et al. 2016

J. Perform. Constr. Facil.

View full text Add to dashboard Cite

The overall performance of a concrete structure is considered to be a key issue when determining its service life. The widespread use of precast concrete and consideration of durability as a design parameter in most of the international codes have the goal of achieving concrete structures with better durability. Nevertheless, the early deterioration of concrete is still common in a large number of concrete structures, which reduces the service life. This paper presents a case study of an existing precast concrete cooling tower for a thermal power station subjected to severe marine exposure conditions, which showed symptoms of serious deterioration after operating for three years. The main goal of this study was to clarify the origin of the accelerated deterioration of the structure. Wetting-drying cycles were identified as the main cause of the early deterioration of the structure. Furthermore, estimations on its remaining service life were made considering the accelerating effect of the wetting-drying cycles. Finally, the variation in the safety factor of the main structural elements was evaluated.

show abstract

Case studies of concrete deterioration in a marine environment in Portugal

Cited by 105 publications

References 4 publications

Tensile Bond Characteristics between Underwater Coating Materials and Concrete Substrate

Tensile Bond Characteristics between Underwater Coating Materials and Concrete Substrate

Review of Nondestructive Testing Methods for Condition Monitoring of Concrete Structures

Service-Life Assessment of Existing Precast Concrete Structure Exposed to Severe Marine Conditions

Contact Info

Product

Resources

About