Corrosion damage assessment of a reinforced concrete canal structure of power plant after 20 years of exposure in a marine environment: A case study

Bayuaji, Ridho; Darmawan, Muhammad Sigit; Husin, Nur Ahmad; Anugraha, R Buyung; Budipriyanto, Agung; Stewart, Mark G.

doi:10.1016/j.engfailanal.2017.11.014

Cited by 37 publications

(9 citation statements)

References 9 publications

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“…The table shows that the highest chloride and sulfate content of the sea water was 19,000 mg/L and 2471 mg/L, respectively. These values were higher than the chloride and sulfate content of seawater found in the Port of Paiton, approximately 150 km away from Port of Tanjung Perak [24] of 15720 mg/L and 1778 mg/L, respectively. These higher contents are possibly caused by the higher water pollution at Port Tanjung Perak than that of Port of Paiton.…”

Section: Mixing and Curingcontrasting

confidence: 54%

Shear Strength of Geopolymer Concrete Beams Using High Calcium Content Fly Ash in a Marine Environment

et al. 2019

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This paper deals with the behavior of a geopolymer concrete beam (GCB) under shear load using high calcium content fly ash (FA). The effect of the marine environment on the shear strength of GCB was considered by curing the specimen in a sea splashing zone for 28 days. Destructive and non-destructive tests were carried out to determine the properties of geopolymer concrete in different curing environments. Geopolymer concretes cured at room temperature showed higher compressive strength, slightly lower porosity, and higher concrete resistivity than that of those cured in sea water. From the loading test of the GCB under shear load, there was no effect of a sea environment on the crack pattern and crack development of the beam. The shear strength of the GCB generally exceeded the predicted shear strength based on the American Concrete Institute (ACI) Code.

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Section: Mixing and Curingcontrasting

confidence: 54%

Shear Strength of Geopolymer Concrete Beams Using High Calcium Content Fly Ash in a Marine Environment

et al. 2019

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“…Apostolopoulos and Papadakis carried out accelerated corrosion tests on steel bars, and the corrosion results were in good agreement with the corrosion performance of steel bars in practical engineering [8]. By describing the assessment of a reinforced concrete canal structure of power plant after 20 years of exposure in a marine environment, Bayuaji et al predicted no strength reduction due to corrosion by 2025 [9]. Four degradation models of bond stress between steel bar and concrete with different diameters were studied by experiments.…”

Section: Introductionmentioning

confidence: 85%

“…Based on this, the migration distance can be roughly judged according to pitting corrosion rate. As shown in equations (9) and (10).…”

Section: Rust Migration Analysismentioning

confidence: 99%

Experimental Study on Corrosion of Anchored Rock Mass for Half‐Through Intermittent Joints

Ding

Ming-bin

et al. 2019

Advances in Civil Engineering

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Make crackled mortar test block to simulate jointed rock mass reinforced by anchor bars. Computational model of corrosion penetration at different load times can be obtained by corrosion acceleration through electrochemistry. Through observation of anchor bar after corrosion, it is found that primary corrosion is mainly pitting; however, with the development of corrosion, corrosion moves along etch pit to the upper and lower surfaces so as to form partial corrosion. Meanwhile, computational formula of pitting ratio is put forward on the basis of mass loss rate. It is found that, through the pulling out experiment of anchor bar corrosion, corrosion has remarkable influence on anchoring performance of anchor bar; meanwhile, different pitting ratios have different influences on trends of ultimate bond strength, for example, when pitting ratio is bigger (between 9% and 30%), the biggest decreasing rate of bond strength is obviously lower than that under lower pitting ratio (from 1.5% to 5%). According to linear fitting of experimental data, the relationship curve of K, ultimate bond strength ratio, and pitting ratio can be obtained so as to provide basis for judgement of anchoring performance loss in practical engineering.

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“…However, this chemical reaction is only possible if the concentration of hydroxide ions (normally present in the concrete surrounding the reinforcement bar) is sufficiently low or the concentration of chloride ions is sufficiently high. Another effect of chloride ions is neutralisation of the protective oxide layer on the surface of the steel bars, which induces a pH value decrease further propagating the corrosion reactions and overall degradation of reinforcement [11], [12]. On the other hand, carbonation is a process of neutralisation of concrete alkalinity when atmospheric CO2 reacts with hydrated cement products.…”

Section: ) O + H O + 4e ⎯⎯ 4ohmentioning

confidence: 99%

Preliminary approach to bio-based surface healing of structural repair cement mortars

Bergh

Miljević

Šovljanski

et al. 2020

Construction and Building Materials

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Corrosion damage assessment of a reinforced concrete canal structure of power plant after 20 years of exposure in a marine environment: A case study

Cited by 37 publications

References 9 publications

Shear Strength of Geopolymer Concrete Beams Using High Calcium Content Fly Ash in a Marine Environment

Shear Strength of Geopolymer Concrete Beams Using High Calcium Content Fly Ash in a Marine Environment

Experimental Study on Corrosion of Anchored Rock Mass for Half‐Through Intermittent Joints

Preliminary approach to bio-based surface healing of structural repair cement mortars

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