Bond behavior of reinforcement embedded in steel fiber reinforced concrete under chloride attack

Hou, Lei; Ye, Ziyao; Zhou, Bingxuan; Shen, Chun; Aslani, Farhad; Chen, Da

doi:10.1002/suco.201800246

Cited by 18 publications

(4 citation statements)

References 26 publications

(48 reference statements)

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“…The bonding between concrete and steel rebars is a key factor for concrete structures, which relates to the design, construction, and behavior of structures [21][22][23][24][25]. In the past few years, many works have been performed to study the bond performance between steel rebar and fiber-reinforced concrete [26][27][28][29][30][31]. Most of these works, however, focused on cases with steel fibers and steel-PVA hybrid fibers.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Bond Behavior between Steel Rebar and PVA Fiber-Reinforced Concrete

Zhang

Wang

2023

Coatings

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An experimental test was performed to study the bond behavior between steel rebar and concrete reinforced by polyvinyl alcohol (PVA) fibers. Twenty specimens were prepared and subjected to the pull-out test. Four different fiber volume contents (0%, 0.2%, 0.4%, and 0.6%) were considered and the concrete with the strength grade of C35 was designed in the present study. The effects of PVA fibers, rebar diameter, and cover depth on bond behavior were clarified. The effects of PVA fibers on the mechanical property of concrete were also studied. The results show that PVA fibers decreased the compressive strength of concrete, but increased splitting tensile, flexural, and direct tensile strength. PVA fibers negatively affected bonding in the ascending branch both for the pull-out and the splitting failure cases, but improved the bonding in the descending branch after peak stress for the splitting failure case. In the present test, the maximum decrement of bond strength was about 16.2% for specimens with less than 0.6% PVA fibers. PVA fibers restricted both the macro-cracking and micro-cracking for the splitting cases, the former were much more significant than the latter. The effects of rebar diameter and cover depth on bonding became slight and significant with the increasing content of PVA fibers, respectively.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Bond Behavior between Steel Rebar and PVA Fiber-Reinforced Concrete

Zhang

Wang

2023

Coatings

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“…The durability of concrete structures in coastal areas has a significant impact on the safety and economic benefits of civil engineering construction. Chloride salt erosion is the main factor leading to durability issues in concrete structures in this area [1][2][3][4]. Enhancing the resistance of coastal concrete structures to chloride salt erosion has garnered widespread attention from scholars, experts, and engineering professionals [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Anti-Corrosion Study of Corrosion Inhibitor and Sacrificial Anode on Coastal Reinforced Concrete Structures

Zheng,

Liu,

Yan

2023

Advances in Transdisciplinary Engineering

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In order to improve the durability of coastal reinforced concrete structures, the effects of the mixed rust inhibitors, migrated rust inhibitors, and zinc-based sacrificial anodes on the reinforcement corrosion behaviors were investigated by linear polarizations and electrochemical impedance spectroscopies. Their rust resistance efficiency was also compared by static weight-loss tests, which were under different chloride concentrations and pH values in simulated concrete pore solution. The test results indicate that the anti-rust performance of the migrated rust inhibitor is weaker than that of the mixed rust inhibitor with the same content (1%) and chloride concentration. The anti-rust effect of the zinc-based sacrificial anode is better than that of the rust inhibitor under a higher chloride concentration (0.85mol/L). Under the same test time (1d), anti-rust content (1%) and chloride concentration (0.6mol/L), the rust resistance properties of each reagent are as follows: (Neutral environment) Zinc-based sacrificial anode < Migrated rust inhibitor < Mixed rust inhibitor, (Alkaline environment) Migrated rust inhibitor < Zinc-based sacrificial anode < Mixed doped rust inhibitor.

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“…The influence of material and environmental factors on the distribution of chloride ions was analyzed. Hou et al [5] carried out an experimental study on the effect of chloride ion corrosion on the bonding performance between steel bars and steel fiber reinforced concrete. The test parameters included the corrosion ratio, fiber fraction, and cover thick-ness-rebar diameter ratio (c / d).…”

Section: Introductionmentioning

confidence: 99%

Effect of non-isothermal flow on chloride ion transport in saturated concrete

Chen

2021

E3S Web Conf.

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The presence of a temperature difference changes the mode of motion of the fluid. The macroscopic motion of the fluid causes the relative displacement between the various parts of the fluid, which in turn affects the transfer of temperature in the medium. To investigate the effect of temperature transfer coupled fluid motion on chloride ion transport in concrete, a mesoscopic model of chloride ion transport in non-isothermal flow of concrete was established and compared with experimental data. Based on the finite element software, the influence of temperature transfer on the internal fluid motion and chloride ion transport of concrete was analyzed. And the effect of convective motion of fluid on the temperature transfer in concrete was studied. It is found that when the heating time is the same, the dynamic viscosity of the fluid in the concrete decreases with the increase of temperature; the chloride ion concentration increases with the increase of temperature at the same depth of concrete; when considering the influence of laminar flow, the temperature is transmitted faster in the concrete and exhibits uneven diffusion from high temperature to low temperature; non-isothermal flow promotes the diffusion of chloride ions in concrete, and the higher the temperature.

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Bond behavior of reinforcement embedded in steel fiber reinforced concrete under chloride attack

Cited by 18 publications

References 26 publications

Experimental Study on Bond Behavior between Steel Rebar and PVA Fiber-Reinforced Concrete

Experimental Study on Bond Behavior between Steel Rebar and PVA Fiber-Reinforced Concrete

Anti-Corrosion Study of Corrosion Inhibitor and Sacrificial Anode on Coastal Reinforced Concrete Structures

Effect of non-isothermal flow on chloride ion transport in saturated concrete

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