Concrete Deterioration Mechanisms under Combined Sulfate Attack and Flexural Loading

Gao, Rundong; Li, Qingbin; Zhao, Shunbo

doi:10.1061/(asce)mt.1943-5533.0000538

Cited by 62 publications

(27 citation statements)

References 12 publications

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“…Based on Gao et al's explanation, the influence of sulphate in seawater can cause both macro and micro damage on concrete. 5 Wet and dry conditions will impact the durability of concrete. From the experimental results, it can be seen that wet conditions, both immersed in seawater and fresh water, produced lower strength than in dry conditions.…”

Section: Analysis Of Test Resultsmentioning

confidence: 99%

“…4 The mechanism of damage caused by sulphur on concrete that receives loads in wet and dry conditions based on micro and macro observations was investigated by Gao et al 5 The research was conducted to determine the effects of action and reaction that happen in wet and dry conditions and the effect of crystallisation. In dry condition, the moisture which is reduced by evaporation makes salt crystallise faster.…”

Section: The Effect Of Seawater Content On Concretementioning

confidence: 99%

“…Salt crystals fill the pores of concrete to provide pressure that can aggravate the strength of the concrete. 5 Wegian investigated the effects of mixing and curing concrete with seawater on the compressive, tensile, flexural and bond strengths of concrete. Concrete mixes were prepared by varying coarse aggregate, cement proportions and types.…”

Section: The Effect Of Seawater Content On Concretementioning

confidence: 99%

See 2 more Smart Citations

Effect of Water Content and Water Type on the Physical Properties of Concrete

Saputra¹,

Sulistyo²

2018

JPS

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Section: Analysis Of Test Resultsmentioning

confidence: 99%

Section: The Effect Of Seawater Content On Concretementioning

confidence: 99%

Section: The Effect Of Seawater Content On Concretementioning

confidence: 99%

See 1 more Smart Citation

Effect of Water Content and Water Type on the Physical Properties of Concrete

Saputra¹,

Sulistyo²

2018

JPS

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“…The domestic and overseas scholars have studied the durability of concrete under different environmental conditions [8][9][10][11][12][13]. The previous results pointed out that the key affecting factors for the durability of concrete structure are material factor, environmental factor, and construction factor [8,9,14]. The environmental factors such as physical and chemical factors [8], freezing-thawing action [10], and sulfate attack [9,11] have a critical effect on the durability of concrete.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Durability Evaluation of Concrete with Sulfate Solution Corrosion

Feng

Deng

2016

Advances in Materials Science and Engineering

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Concrete material has been a choice for the construction structures, even in the cold regions and saline zone. However, these environmental factors have critical damaging effect on the concrete characters. Consequently, this damage will decrease the servicing time of the concrete construction within this environment. In order to evaluate the durability of concrete, the behavior of concrete specimens under the sulfate solution corrosion attacks was studied in this presented work. Two groups of the specimens were immersed into the sulfate solutions with a concentration of 10% and 20%, respectively. The strength development of the specimens under different immersing time was studied. Based on Fick’s law, a steady diffusion equation for sulfate ions in concrete was presented, and the depth of penetration of the attacking sulfate ions was also determined. Based on the depth of penetration and the definition of damage, a damage model for concrete material is developed and a new equation (strength-time) describing the chemical corrosion concrete material is proposed. Results show that the suggested analytical methods can quantify the damage process of concrete under sulfate attack, and the power laws damage developing formula can be used to describe the damage development of the concrete construction subjected to chemical corrosion.

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“…During period of water storage, concrete face slab will be affected by ambient medium such as water, air, temperature and sunshine, and other effects. It is easy to make concrete produce a large number of cracks and some through the cracks are the main factors affecting the durability of panel concrete and safety (Gao & Li 2013). So far engineering on concrete durability requirements is relatively high, concrete face should not only has high strength, high antifreeze impermeability, should also have low shrinkage rate to the damaging effects of external environment brought about by the freezing and thawing, dry and wet, carbonization resistance.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the durability of the panel concrete

Wang¹,

Li²,

Jing³

2016

Proceedings of the 2016 5th International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2016)

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Freeze-thaw damage and sulfate attack are two important factors that affect the durability of panel concrete. The damage of panel concrete with w/c ratio of 0.45, 0.42, 0.38 under the single freeze-thaw cycles, single sulfate attack and the alternation test in solutions of 5.0% Na 2 SO 4 is studied, and analyzed the characteristics of mass loss and relative dynamic modulus. The results show that the w/c ratio have great influence on the panel concrete frost resistance and resistance to sulfate attack. The resistance of freeze-thaw and sulfate attack increased with the decreasing w/c ratio of panel concrete. Coupled deterioration of freeze-thaw cycle and sulfate attack is not a simple superposition effect, these two kinds of damage are promoting and influencing each other. The research methods and results can provide a reference for the durability of panel concrete.

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Concrete Deterioration Mechanisms under Combined Sulfate Attack and Flexural Loading

Cited by 62 publications

References 12 publications

Effect of Water Content and Water Type on the Physical Properties of Concrete

Effect of Water Content and Water Type on the Physical Properties of Concrete

Mechanical and Durability Evaluation of Concrete with Sulfate Solution Corrosion

Experimental study on the durability of the panel concrete

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