Meso-cracking characteristics of rubberized cement-stabilized aggregate by discrete element method

Zhao, Xiao‐Fan; Dong, Qiao; Chen, Xueqin; Ni, Fujian

doi:10.1016/j.jclepro.2021.128374

Cited by 23 publications

(3 citation statements)

References 33 publications

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“…The results of the UCS tests were the average value of the test results of the three parallel samples. In order to analyze the anti-dry-wet cycle ability of the CS-SS samples under seawater and freshwater conditions, the average strength loss rate D f was used to evaluate the dry-wet cycle characteristics of the CS-SS samples [25]. Moreover, D f can be expressed as Equation (1):…”

Section: Test Schemementioning

confidence: 99%

“…The hydration of the cement induced microcracks inside the cemented soil [25,27], and the failure of the samples started at the internal weak point under external load; the microcracks expanded and penetrated one another as the external load increased, leading to the macroscopic failure of the samples. For the cemented soil samples with zero sand particle content, the internal microcracks were free to expand with long extension lengths, easily forming wide cracks in line with the loading direction, and macroscopically showing a column-cracking failure pattern, as shown in Figure 4a.…”

Section: Physical Explanation Of Sand On Strengthening Mechanism Of C...mentioning

confidence: 99%

“…It was found in the test that the failure pattern of the CS-SS samples changed with the sand particle content, and the samples exhibited a column-cracking failure when the sand particle content was zero, a nuclear cracking failure when the sand particle content was 15%, and a shear-cracking failure when the sand particle content was 30%, as shown in Figure 4. The hydration of the cement induced microcracks inside the cemented soil [25,27], and the failure of the samples started at the internal weak point under external load; the microcracks expanded and penetrated one another as the external load increased, leading to the macroscopic failure of the samples. For the cemented soil samples with zero sand particle content, the internal microcracks were free to expand with long extension lengths, easily forming wide cracks in line with the loading direction, and macroscopically showing a column-cracking failure pattern, as shown in Figure 4a.…”

Section: Physical Explanation Of Sand On Strengthening Mechanism Of C...mentioning

confidence: 99%

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Experimental Study on Strength and Dry–Wet Cycle Characteristics of South China Coastal Soft Soil Solidified by Cement Collaborating Sand Particles

Liang,

Wang,

Feng

2023

Applied Sciences

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To study the influence of sand particles on the strength and dry–wet cycle characteristics of cement-solidified South China coastal soft clay, a series of cement-solidified South China coastal soft clay samples with different contents and sizes of sand particles were prepared, and unconfined compression strength (UCS) tests, dry–wet cycle tests under seawater and freshwater conditions, scanning electron microscopy tests, and X-ray diffraction tests were carried out. The test results show that the UCS of cement–sand-solidified soil (CS-SS) samples at 7, 14 and 28 d increase as sand particle content increases, and their 28 d strength increase as sand particle size decreases; the average mass loss rate of sand–cement samples ranges from 14% to 61%. The properties of strength and dry–wet cycle durability improve as the sand particle content increases and the sand particle size decreases. Moreover, the anti-dry–wet cycle ability of samples under freshwater conditions is better than those under seawater conditions. The scanning electron microscopy (SEM), X-ray diffraction (XRD), and ion chromatography test results show that the stiffness replacement effect (the high stiffness of sand particles replaces the low stiffness of soft clay), the interface cementation effect between the sand particles and cemented soil, and the microcrack expansion-obstructing effects of sand particles contribute to the improvement of the strength and dry–wet cycle durability of cement–sand solidified South China coastal soft clay.

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Section: Test Schemementioning

confidence: 99%

Section: Physical Explanation Of Sand On Strengthening Mechanism Of C...mentioning

confidence: 99%

Section: Physical Explanation Of Sand On Strengthening Mechanism Of C...mentioning

confidence: 99%

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Experimental Study on Strength and Dry–Wet Cycle Characteristics of South China Coastal Soft Soil Solidified by Cement Collaborating Sand Particles

Liang,

Wang,

Feng

2023

Applied Sciences

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Composition design and performance evaluation of rubber-particle cement-stabilized gravel

Wang,

Yi,

Chen

et al. 2024

Front. Struct. Civ. Eng.

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Influence of 3D Aggregate Shape on the Meso-Structure of 2D Cross-Sectional Concrete by the Numerical Slicing Method

Zhu,

Chen,

Nian

et al. 2023

Arab J Sci Eng

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Meso-cracking characteristics of rubberized cement-stabilized aggregate by discrete element method

Cited by 23 publications

References 33 publications

Experimental Study on Strength and Dry–Wet Cycle Characteristics of South China Coastal Soft Soil Solidified by Cement Collaborating Sand Particles

Experimental Study on Strength and Dry–Wet Cycle Characteristics of South China Coastal Soft Soil Solidified by Cement Collaborating Sand Particles

Composition design and performance evaluation of rubber-particle cement-stabilized gravel

Influence of 3D Aggregate Shape on the Meso-Structure of 2D Cross-Sectional Concrete by the Numerical Slicing Method

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