Experimental investigation on chloride-ion penetration resistance of slag containing fiber-reinforced concrete under drying-wetting cycles

Chen, Weige; Zhu, Haitang; He, Zhenhao; Yang, Lin; Zhao, Liangping; Wen, Cuilian

doi:10.1016/j.conbuildmat.2020.121829

Cited by 36 publications

(15 citation statements)

References 32 publications

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“…Variation between the chloride ion diffusion coefficients using the proposed model and the chloride ion diffusion coefficients from the test results in the two aforementioned studies for erosion days and temperature changes is shown in Figure 8a,b In comparison with the references, we focused on the consistency of the changing trend of chloride ion diffusion coefficient, and the differences between them are reasonable. It can be seen that the model differs slightly from the result of Chen [22] and Ma et al [23] due to fiber addition and experimental methods.…”

Section: Chloride Ion Diffusion Coefficient Model and Its Validationcontrasting

confidence: 58%

“…Presently, there are no reports on the chloride ion penetration mechanism in BFRC under the coupling effect of elevated temperatures and loads. In order to verify the accuracy and availability of this model, experimental data from Chen [22] and Ma et al [23] was utilized. Variation between the chloride ion diffusion coefficients using the proposed model and the chloride ion diffusion coefficients from the test results in the two aforementioned studies for erosion days and temperature changes is shown in Figure 8a,b In comparison with the references, we focused on the consistency of the changing trend of chloride ion diffusion coefficient, and the differences between them are reasonable.…”

Section: Chloride Ion Diffusion Coefficient Model and Its Validationmentioning

confidence: 99%

“…Chen [22] studied the chloride ion penetration of concrete with slag. Due to the excellent stick effect of basalt fiber, the calculated data from the model was slightly lower than the experimental data.…”

Section: Chloride Ion Diffusion Coefficient Model and Its Validationmentioning

confidence: 99%

See 2 more Smart Citations

The Chloride Ion Penetration Mechanism in Basalt Fiber Reinforced Concrete under Compression after Elevated Temperatures

Qin

et al. 2021

Applied Sciences

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Chloride ion penetration frequently leads to steel corrosion and reduces the durability of reinforced concrete. Although previous studies have investigated the chloride ion permeability of some fiber concrete, the chloride ion permeability of the basalt fiber reinforced concrete (BFRC) has not been widely investigated. Considering that BFRC may be subjected to various exposure environments, this paper focused on exploring the chloride ion permeability of BFRC under the coupling effect of elevated temperatures and compression. Results demonstrated that the chloride ion content in concrete increased linearly with temperature. After exposure to different elevated temperatures, the chloride ion content in BFRC varied greatly with increasing stress. The compressive stress ratio threshold for the chloride ion penetration was measured. A calculation model of BFRC chloride ion diffusion coefficient under the coupling effect of elevated temperatures and mechanical damage (loading test) was proposed.

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Section: Chloride Ion Diffusion Coefficient Model and Its Validationcontrasting

confidence: 58%

Section: Chloride Ion Diffusion Coefficient Model and Its Validationmentioning

confidence: 99%

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The Chloride Ion Penetration Mechanism in Basalt Fiber Reinforced Concrete under Compression after Elevated Temperatures

Qin

et al. 2021

Applied Sciences

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“…The associated postcracking behavior of PF reinforced concrete is detrimental to curb the penetration and diffusion of chloride ions. In addition, a previous study verified that polypropylene based macrofibers exacerbated the chloride ion penetration in a higher volume dosage [ 1 ]. The optimal level of PF fiber thereby is identified as 0.08% in the volumetric basis of the concrete.…”

Section: Resultsmentioning

confidence: 87%

“…Among those mineral additives, environmentally friendly and cost-effective industrial byproducts including slag and fly ash are noteworthy. It was reported that the slag powder promoted cement hydration and curbed creep and drying shrinkage, resulting in an enhanced resistance of concrete to chloride penetration [ 1 , 2 ]. The addition of fly ash generated similar effects.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Chloride Resistance of Polypropylene Fiber Reinforced Concrete with Fly Ash and Modeling

2021

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Herein, the paper reports an experimental investigation lasting one year on the chloride resistance of polypropylene fiber (PF) reinforced concrete with fly ash (FA). Four influential factors at four levels were studied, viz. water to binder ratio (w/b) (0.53, 0.34, 0.29, and 0.25), PF dosage (0%, 0.06%, 0.08%, and 0.1% in volume basis of the total volume of concrete), FA content (0%, 15%, 25%, and 35% in mass substitution ratio of cement) and concentration of NaCl solution (0%, 3%, 5%, and 7%). Dry–wet cyclic immersion and long-term soaking were taken into consideration in addition to the aforementioned factors. A L16(44) orthogonal table was used to sequence influencing factors and to determine the optimal combination. Results showed that 7% NaCl solution caused the highest chloride content in 0–5 mm depth, whilst the w/b ratio of 0.25 curbed the chloride penetration within 10 mm even for concrete subjected to dry–wet cyclic immersion for 360 d. Subsequently, a respond surface model (RSM) basing on polynomials was constructed to visually evaluate the effect of PF dosage and FA content. Results clarified that a cubic model was more precise and PF dosage and FA content turned out to have the positive facilitation to chloride resistance. The positive effect of PF however is not consistent and commensurate for concrete with varied fly ash content. Finally, a fuzzy logic based nonlinear model accommodating all seven influencing factors was verified to be proper and adaptive in predicting chloride content.

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Study on the deterioration of concrete performance in saline soil area under the combined effect of high low temperatures, chloride and sulfate salts

Luo,

Li,

Niu

2024

Cement and Concrete Composites

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Experimental investigation on chloride-ion penetration resistance of slag containing fiber-reinforced concrete under drying-wetting cycles

Cited by 36 publications

References 32 publications

The Chloride Ion Penetration Mechanism in Basalt Fiber Reinforced Concrete under Compression after Elevated Temperatures

The Chloride Ion Penetration Mechanism in Basalt Fiber Reinforced Concrete under Compression after Elevated Temperatures

Experimental Study of Chloride Resistance of Polypropylene Fiber Reinforced Concrete with Fly Ash and Modeling

Study on the deterioration of concrete performance in saline soil area under the combined effect of high low temperatures, chloride and sulfate salts

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