Experimental Test of Chloride Penetration in Reinforced Concrete Subjected to Wetting and Drying Cycle

Sutrisno, Wahyuniarsih; Suprobo, Priyo; Wahyuni, Endah; Iranata, Data

doi:10.4028/www.scientific.net/amm.851.846

Cited by 13 publications

(11 citation statements)

References 4 publications

(4 reference statements)

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“…Even though many studies related to the microstructural condition of concrete exposed to seawater has been performed, but the effect of the influence of the ratio of wetdry durations has not been thoroughly investigated. According to research by Sutrisno et al in 2016, the chloride profile of the concrete subjected to wetting and drying cycle is greatly affected by wetting and drying period [19]. Therefore, this paper is focused on investigating the microstructural condition of the concrete due to three different wet and dry duration ratio.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Investigation of Reinforced Concrete Exposed to Cyclic Wetting and Drying

Sutrisno¹,

Suprobo²,

Wahyuni³

et al. 2018

International Journal on Advanced Science, Engineering and Information Technology

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Concrete which placed in an aggressive environment has a great chance to suffer from damage especially for concrete put in the marine environment. In this situation, damage process in concrete is mainly caused by chloride ingress. The chloride penetrates into the concrete by various mechanisms. For concrete submerged in seawater, the chloride solution penetrates into the concrete trough diffusion mechanism and cause damage over the time. However, in real life, reinforced concrete structure mostly placed in the partially saturated area and subjected to the repeated actions of the wetting and drying cycle. This condition makes the concrete structures more vulnerable to corrosion than structures in a fully saturated condition. Therefore, this study investigates the changes in concrete microstructures condition due to repeated actions of wetting and drying. The samples were exposed by 5% NaCl solution through the different configuration of wet and dry duration. The microstructural condition was observed by several methods such as XRF, SEM and EDX analysis. Major constituent phases of concrete and the differences in their distribution due to different duration of wet and dry were observed in this study. Finally, from the investigation, it was found that there were noticeable differences in chloride and magnesium percentage in the samples. This result acts as evidence that the duration of wet and dry can affect the formation of particular compounds such as chloroaluminate, quartz, brucite, and dolomite in the samples which plays roles in the damage process of concrete.

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Section: Introductionmentioning

confidence: 99%

Microstructural Investigation of Reinforced Concrete Exposed to Cyclic Wetting and Drying

Sutrisno¹,

Suprobo²,

Wahyuni³

et al. 2018

International Journal on Advanced Science, Engineering and Information Technology

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“…Structures located at the splash and tidal zone in the marine environment are more susceptible to corrosion compared with another area [4]- [6]. In the splash zone, structures are subjected to cyclic wetting and drying cycle which over time, will cause severe damage to the structure [7]- [9]. In reinforced concrete structure, cyclic wetting and drying cause continuous moisture and harmful materials movement through concrete pores.…”

Section: Introductionmentioning

confidence: 99%

“…If this condition is repeated by the wetting and drying mechanism, more chloride solution will infiltrate into the concrete while re-dissolving existing chloride into the concrete. At some point, the chloride concentration will reach the threshold value and it can initiate or accelerate the corrosion process [9], [11], [12]. After corrosion starts, the volume of rust is increase and cause decrease on bond strength between concrete and steel reinforcement and eventually cause cracking and delamination of its cover [1], [13], [14].…”

Section: Introductionmentioning

confidence: 99%

Structural Performance Investigation of Ship Lift Hoist Pile Structure Exposed to Tropical Marine Environment

Sutrisno¹,

Alrasyid²

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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This paper presents a field investigation and numerical analysis of a ship lift hoist pile structure exposed to the marine environment. This structure is located at Lamong Gulf in East Java Indonesia. This study focused on analyzing the structural performance of the steel pile of the ship lift hoist structure against gravity and seismic load. The field investigation was conducted using several methods such as visual observation, ultrasonic pulse velocity, half-cell potential and ultrasonic thickness to observe the current condition of the structure. Furthermore, a structural analysis was also performed to investigate the performance of the structure before and after the corrosion presented. Based on the field investigation result, it was found that the steel pile of the hoist structure suffers a loss of thickness due to corrosion. The thickness loss of each pile varies from 0 to 1.9 mm. The half-cell potential on the pile cap also shows that the corrosion potential in more than half the hoist pile cap is very high. Furthermore, the structural performance analysis shows that the hoist pile structure is within the safe limit against gravity load when receiving a maximum ship load of 1,650 tons. However, when the gravity load is combined with seismic load, the analysis result shows that the steel pile structure is overstressed and cannot withstands the applied load.

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“…At present, there are many studies on the erosion performance of concrete under drying–wetting cycling conditions [10,11,12,13,14,15]. However, the dry and wet circulation methods adopted by various researchers are different without auniform theoretical basis, and there is no standard to follow.…”

Section: Introductionmentioning

confidence: 99%

“…Some scholars have begun to make a preliminary exploration for the wet and dry cycle system [12]. Sutrisno et al controlled the test temperature at 30 °C and studied the effect of two dry–wet ratios (7:1 and 5:3) on the chloride content in concrete using an 8 h cycle [13]. Sobhan et al used a dry-to-wet ratio of 1:1 and cycle periods of 12 h, 24 h, and 48 h to simulate the coastal environment in Iran and other regions [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Dry–Wet Ratio on Properties of Concrete Under Sulfate Attack

et al. 2019

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In order to explore the drying–wetting cycle test method of concrete under sulfate accelerating erosion, the influence of dry–wet time ratio on concrete sulfate erosion was studied. Under the condition of 7 days for one cycle, five different dry–wet time ratios were designed: 1:3, 1:1, 3:1, 5:1, and 10:1. The basic properties such as compressive strength, splitting tensile strength and dynamic elastic modulus of concrete were tested. Scanning electron microscopy (SEM) was used to analyze the microstructure of concrete before and after erosion. The test results show that under the environment of sulfate drying–wetting cycle erosion, the change of mechanical properties of concrete are divided into three stages: ascending period, fluctuating period and rapid descending period. Concrete is subjected to periodic damage process of initial damage followed by filling compaction, cracking, further filling, and cracking again, in that order. Dry–wet ratio has a significant effect on concrete sulfate attack. Under the same drying–wetting cycle period, as the dry–wet ratio increases, the degree of deterioration of concrete by sulfate attack increases first and then decreases. When the dry–wet ratio is 5:1, the deterioration is the most serious.

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Experimental Test of Chloride Penetration in Reinforced Concrete Subjected to Wetting and Drying Cycle

Cited by 13 publications

References 4 publications

Microstructural Investigation of Reinforced Concrete Exposed to Cyclic Wetting and Drying

Microstructural Investigation of Reinforced Concrete Exposed to Cyclic Wetting and Drying

Structural Performance Investigation of Ship Lift Hoist Pile Structure Exposed to Tropical Marine Environment

Effect of Dry–Wet Ratio on Properties of Concrete Under Sulfate Attack

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