Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China

Ren, Jianhong; Li, Xiaojie; Zhao, Kai

doi:10.1007/s11769-015-0779-5

Cited by 27 publications

(10 citation statements)

References 36 publications

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“…Based on Ren et al [43] and an open image processing software (ImageJ ver. 1.8.0) (National Institutes of Health, Bethesda, MD, USA), digital image processing on surface cracking patterns of a concrete specimen under sulfate attack is illustrated in Figure 4.…”

Section: Fractal Characteristics Of Surface Cracksmentioning

confidence: 99%

Fractal Cracking Patterns in Concretes Exposed to Sulfate Attack

Chen

2019

Materials

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Sulfate attack tests were performed on concrete samples with three water-to-cement ratios, and micro-crack growth patterns on concrete surfaces were recorded. The expansive stress and crack nucleation caused by delayed ettringite formation (DEF) were studied using X-ray diffraction and scanning electron microscopy. By means of a digital image processing technology, fractal dimensions of surface cracking patterns were determined, which monotonously increase during corrosion. Moreover, it is shown that the change of fractal dimensions is directly proportional to accumulation of DEF, and therefore, a simple theoretical model could be proposed to describe the micro-crack evolution in concretes under sulfate attack.

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Section: Fractal Characteristics Of Surface Cracksmentioning

confidence: 99%

Fractal Cracking Patterns in Concretes Exposed to Sulfate Attack

Chen

2019

Materials

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“…At present, soil cracking and evaporation are quantitively analyzed using the correlation analysis, image process, and other chemical and biological methods [18][19][20][21]. e cracking mechanism was also investigated according to the crack behavior, crack initiation, and development [22].…”

Section: Introductionmentioning

confidence: 99%

Evaporative Cracking Characteristics of the Embankment Soil Affected by the Saline Concentration

Liu

Xia

et al. 2022

Advances in Civil Engineering

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Embankment soil affected by saline can not only cause roadbed settlement, frosting, and road cracks but also cause corrosion and cracking of roadbed pipelines, which seriously affects the stability of the road. Water evaporation and dry cracking of the saline soil mainly cause soil swelling, poor water stability, and corrosive characteristics of the embankment soil. In this study, the evaporative cracking characteristics of soil with different saline concentrations were investigated. The results showed that the moisture content decreased linearly with the drying time in the early evaporation process, subsequently decreased slow down in the mid-term evaporation, and finally become got and remain a residual moisture content, which are 46.39%, 44.05%, 42.70%, and 40.27% with the increase of the saline concentration. The evaporation process with different saline concentrations in the soil can be divided into three stages: uniform evaporation stage, slow down evaporation stage, and equilibrium evaporation stage, which was consistent with the moisture content change. With the development of the drying time, the cracks gradually appeared on the soil surface, gradually deepened in the soil, and expanded the crack network. The development of cracks can be divided into three stages: the cracking preparation stage, the crack development stage, and the crack stable stage. The cracking began at high evaporation rate under high saline concentration, and the fractal dimension remained stable under similar saline concentration. The fractal dimension was gradually increased with the decrease of the moisture content and the increase of the saline concentration, respectively. The soil began to crack with larger moisture under high saline concentration. The drying cracks in the nature were consistent with the configuration of the cracks formed in the experimental results.

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“…After a series of studies on 32 saline-alkali soils, Smith et al [32] determined the relationship between the cation exchange capacity of the soils and their linear expansion coefficient (COLE), with a correlation coefficient up to 0.81. Ren et al [33,34] extracted the textural features of crack patterns, and quantitatively analyzed the relationship between texture feature and salinity of saline-sodic soils. Zhang et al [35] conducted desiccation tests of saline-sodic soils in the laboratory to analyze the effects of NaCl content on their cracking behavior during water evaporation.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of the Spectral Response to Soil Salinity of Saline-Sodic Soils under Different Surface Conditions

Ren

Zhao

et al. 2018

IJERPH

Self Cite

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Desiccation cracking is a very common surface soil phenomenon of saline-sodic land. The objective of this study was to investigate the effects of salt content on the spectral reflectance of soil with and without desiccation cracks. To achieve our objective, a cracking test was performed using 17 soil samples. Following the tests, crack parameters were extracted, and correlation analysis was then performed between crack parameters and four soil properties: Na+, salinity (total concentration of ions), pH, and electric conductivity (EC). In order to select the optimum spectral measurement method and develop prediction models, spectral response to different soil properties were compared between the cracked soil samples and the comparative soil samples composed of the 2 mm particle size fraction processed by traditional methods. The results indicate that soil salinity dominated cracking propagation with a positive correlation. Since area and volume scattering are closer to what occurs in the field, a greater spectral response to soil properties was found for cracked soil samples relative to the comparative soil samples in the near-infrared and shortwave-infrared regions. The R2 of optimal linear prediction models based on the cracked soil samples were 0.74, 0.67, 0.58, and 0.67 for Na+, salinity, pH, and EC, respectively.

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Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China

Cited by 27 publications

References 36 publications

Fractal Cracking Patterns in Concretes Exposed to Sulfate Attack

Fractal Cracking Patterns in Concretes Exposed to Sulfate Attack

Evaporative Cracking Characteristics of the Embankment Soil Affected by the Saline Concentration

Comparative Analysis of the Spectral Response to Soil Salinity of Saline-Sodic Soils under Different Surface Conditions

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