Effect of Freeze–Thaw–Dry–Wet Cycles on the Shear Behavior of Silty Clay Salinized in Wetting Processes
Publication: Journal of Cold Regions Engineering
Volume 38, Issue 3
Abstract
In cold and arid saline areas, the mechanical properties of soils are usually significantly affected by some complicated conditions, especially the coupled effects of the freeze–thaw–dry–wet (F–T–D–W) cycles and soil salinization. This study experimentally investigated the effect of F–T–D–W cycles on the shear performances and microstructures of silty clay that was salinized during wetting processes. Three types of soil samples with different dry densities were designed: (1) silty clay samples without salt (Category Ⅰ); (2) silty clay samples with salt (Category Ⅱ); and (3) silty clay samples that were salinized during wetting processes (Category Ⅲ). Direct shear and scanning electron microscopy (SEM) tests were carried out, the variations in the shear strength, surface deterioration, and shear parameters (e.g., cohesion and internal friction angle) were analyzed, and the degradation mechanism was revealed. The results show that the F–T–D–W cycles and soil salinization significantly affect the shear strength of soils, especially for the samples with low dry densities. The shear strengths of soil samples with and without salt (Categories Ⅰ and Ⅱ) decrease as the F–T–D–W cycles increase. Besides, the cohesion of soil samples increases with dry density and declines with the F–T–D–W cycles due to the appearance of cracks and bond failure among soil particles. In addition, there is a threshold number of F–T–D–W cycles to significantly reduce the cohesion of soil samples, and the threshold numbers for soil samples Categories Ⅰ and Ⅱ are six and three, respectively. The repeated expansion and shrinking of soils accelerate the damage to the soil structure, which results in a decrease in cohesion and interparticle force. However, when the concentration of salt solution in soils exceeds the saturation concentration, a new denser soil skeleton is formed by the soil particles and surrounding salt crystals, which improves the shear strength of the soil samples. This study could provide deep insights into the shear performance and microstructures of silty clay exposed to F–T–D–W cycles.
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Data Availability Statement
All data, models, and codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The study was supported by the National Natural Science Foundation of China (42101136, 42271146) and the China Postdoctoral Science Foundation (2021M692697).
References
Badakhshan, E., A. Noorzad, and J. Vaunat. 2023. “Stabilization of soft clays exposed to freeze-thaw cycles using chitosan.” J. Cold Reg. Eng. 37 (2): 04023004. https://doi.org/10.1061/JCRGEI.CRENG-690.
Bu, F., J. Liu, H. Mei, Z. Z. Song, Z. Wang, C. J. Dai, and W. Qian. 2023. “Cracking behavior of sisal fiber-reinforced clayey soil under wetting-drying cycles.” Soil Tillage Res. 227: 105596. https://doi.org/10.1016/j.still.2022.105596.
Cheng, G. D., Q. B. Wu, and W. Ma. 2008. “Innovative designs of permafrost roadbed for the Qinghai-Tibet Railway.” Sci. China Ser. E: Technol. Sci. 52: 530–538. https://doi.org/10.1007/s11431-008-0291-6.
Chindaprasirt, P., A. Kampala, P. Jitsangiam, R. Sakdinakorn, P. Daprom, and W. Kroehong. 2023. “Effects of sulfate attack under wet and dry cycles on strength and durability of Cement-Stablized laterite.” Constr. Build. Mater. 365: 129968. https://doi.org/10.1016/j.conbuildmat.2022.129968.
Eigenbrod, K. D., S. Knutsson, and D. C. Sheng. 1996. “Pore-water pressures in freezing and thawing fine-grained soils.” J. Cold Reg. Eng. 10(2): 77–92. https://doi.org/10.1061/(asce)0887-381x(1996)10:2(77).
Fang, J. H., X. Li, J. K. Liu, C. Y. N. Liu, Z. Y. Liu, and Y. J. Ji. 2018. “The crystallization and salt expansion characteristics of a silty clay.” Cold Reg. Sci. Technol. 154: 63–73. https://doi.org/10.1016/j.coldregions.2018.06.009.
Fu, J. T., X. S. Hu, X. L. Li, D. M. Yu, Y. B. Liu, Y. Q. Yang, Z. X. Qi, and S. X. Li. 2019. “Influences of soil moisture and salt content on loess shear strength in the Xining Basin, northeastern Qinghai-Tibet Plateau.” J. Mountain Sci. 16 (5): 1184–1197. https://doi.org/10.1007/s11629-018-5206-9.
Han, M. X., W. Peng, B. Ma, Q. B. Yu, K. Kasamad, Z. Furukawa, C. C. Niu, and Q. Wang. 2023. “Micro-composition evolution of the undisturbed saline soil undergoing different freeze-thaw cycles.” Cold Reg. Sci. Technol. 210: 103825. https://doi.org/10.1016/j.coldregions.2023.103825.
Han, Y., Q. Wang, N. Wang, J. Q. Wang, X. D. Zhang, S. K. Cheng, and Y. Y. Kong. 2018. “Effect of freeze-thaw cycles on shear strength of saline soil.” Cold Reg. Sci. Technol. 154: 42–53. https://doi.org/10.1016/j.coldregions.2018.06.002.
Huang, Z., B. X. Wei, L. J. Zhang, W. Chen, and Z. M. Peng. 2018. “Surface crack development rules and shear strength of compacted expansive soil due to dry-wet cycles.” Geotech. Geol. Eng. 37 (4): 2647–2657. https://doi.org/10.1007/s10706-018-00784-y.
Ishikawa, T., T. S. Lin, S. Kawabata, S. Kameyama, and T. Tokoro. 2019. “Effect evaluation of freeze-thaw on resilient modulus of unsaturated granular base course material in pavement.” Transp. Geotech. 21: 100284. https://doi.org/10.1016/j.trgeo.2019.100284.
Jamshidi, R. J., C. B. Lake, and C. L. Barnes. 2015. “Examining freeze/thaw cycling and its impact on the hydraulic performance of cement-treated silty sand.” J. Cold Reg. Eng. 29 (3): 04014014. https://doi.org/10.1061/(ASCE)CR.1943-5495.0000081.
Krzeminska, D., E. Bloem, T. Starkloff, and J. Stolte. 2022. “Combining FDR and ERT for monitoring soil moisture and temperature patterns in undulating terrain in south-eastern Norway.” Catena 212: 106100. https://doi.org/10.1016/j.catena.2022.106100.
Li, G. Y., F. Wang, W. Ma, R. Fortier, Y. H. Mu, Y. C. Mao, and X. Hou. 2018. “Variations in strength and deformation of compacted loess exposed to wetting-drying and freeze-thaw cycles.” Cold Reg. Sci. Technol. 151: 159–167. https://doi.org/10.1016/j.coldregions.2018.03.021.
Li, J. F., H. E. Chen, X. Gao, Q. Ding, W. C. Shan, H. T. Guo, and J. P. Zhuo. 2023. “Cracks evolution and micro mechanism of compacted clay under wet-dry cycles and wet-dry-freeze-thaw cycles.” Cold Reg. Sci. Technol. 214: 103944. https://doi.org/10.1016/j.coldregions.2023.103944.
Lin, Z. J., F. J. Niu, X. L. Li, A. Y. Li, M. H. Liu, J. Luo, and Z. J. Shao. 2018. “Characteristics and controlling factors of frost heave in high-speed railway subgrade, Northwest China.” Cold Reg. Sci. Technol. 153: 33–44. https://doi.org/10.1016/j.coldregions.2018.05.001.
Lu, J. G., L. L. Tan, Y. D. Wang, H. H. Yang, and Z. R. Yan. 2023b. “Experimental study on the hydro-thermal-deformation characteristics of cement-stabilized soil exposed to freeze-thaw cycles.” Front. Earth Sci. 10: 1041249. https://doi.org/10.3389/feart.2022.1041249.
Lu, J. G., Y. D. Wang, W. S. Pei, X. S. Wan, L. L. Tan, and F. Deng. 2023a. “Heat flow characteristics and thermal resistance model for soil-rock mixtures during freezing-thawing processes: Damping properties.” Geoderma 439: 116662. https://doi.org/10.1016/j.geoderma.2023.116662.
Lu, J. G., M. Y. Zhang, and W. S. Pei. 2019. “Hydro-thermal behaviors of the ground under different surfaces in the Qinghai-Tibet Plateau.” Cold Reg. Sci. Technol. 161: 99–106. https://doi.org/10.1016/j.coldregions.2019.03.002.
Lu, J. G., M. Y. Zhang, X. Y. Zhang, W. S. Pei, and J. Bi. 2018. “Experimental study on the freezing-thawing deformation of a silty clay.” Cold Reg. Sci. Technol. 151: 19–27. https://doi.org/10.1016/j.coldregions.2018.01.00.
Miao, Q., F. J. Niu, Z. J. Lin, J. Luo, and M. H. Liu. 2020. “Comparing frost heave characteristics in cut and embankment sections along a high-speed railway in seasonally frozen ground of Northeast China.” Cold Reg. Sci. Technol. 170: 102921. https://doi.org/10.1016/j.coldregions.2019.102921.
Orakoglu, M. E., J. K. Liu, and F. J. Niu. 2016. “Experimental and modeling investigation of the thermal conductivity of fiber-reinforced soil subjected to freeze-thaw cycles.” Appl. Therm. Eng. 108: 824–832. https://doi.org/10.1016/j.applthermaleng.2016.07.112.
Pei, W. S., M. Y. Zhang, Z. R. Yan, Y. M. Lai, J. G. Lu, and Y. J. Dai. 2022. “Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway.” Cold Reg. Sci. Technol. 194: 103428. https://doi.org/10.1016/j.coldregions.2021.103428.
Qi, J., P. A. Vermeer, and G. D. Cheng. 2006. “A review of the influence of freeze-thaw cycles on soil geotechnical properties.” Permafrost Periglacial Processes 17: 245–252. https://doi.org/10.1002/ppp.559.
Qi, J. L., W. Ma, and C. X. Song. 2008. “Influence of freeze-thaw on engineering properties of a silty soil.” Cold Reg. Sci. Technol. 53: 397–404. https://doi.org/10.1016/j.coldregions.2007.05.010.
Shu, Y. H., J. S. Zhang, A. N. Fang, Y. Q. Wu, R. H. Qin, and P. Miao. 2023. “Effect of coupled chloride salt erosion and freeze-thaw on the dynamic mechanical properties of EPS cement soils.” Constr. Build. Mater. 375: 130951. https://doi.org/10.1016/j.conbuildmat.2023.130951.
Tang, L., S. Y. Cong, L. Geng, X. Z. Ling, and F. D. Gan. 2018. “The effect of freeze-thaw cycling on the mechanical properties of expansive soils.” Cold Reg. Sci. Technol. 145: 197–207. https://doi.org/10.1016/j.coldregions.2017.10.004.
Tang, L. Y., G. Li, T. Luo, L. Jin, Y. T. Yu, Q. Sun, and G. Y. Li. 2022. “Mechanism of shear strength deterioration of soil-rock mixture after freeze-thaw cycles.” Cold Reg. Sci. Technol. 200: 103585. https://doi.org/10.1016/j.coldregions.2022.103585.
Tao, Z. F., Y. Zhang, X. R. Chen, and X. M. Gu. 2022. “Effects of freeze-thaw cycles on the mechanical properties of cement-fiber composite treated silty clay.” Constr. Build. Mater. 316: 125867. https://doi.org/10.1016/j.conbuildmat.2021.125867.
Teltayev, B. B., and E. A. Suppes. 2019. “Temperature and moisture in a highway in the south of Kazakhstan.” Transp. Geotech. 21: 100292. https://doi.org/10.1016/j.trgeo.2019.100292.
Tian, L. H., L. L. Yu, S. M. Liu, and B. Zhang. 2020. “Deformation research of silty clay under freeze-thaw cycles.” KSCE J. Civ. Eng. 24 (2): 435–442. https://doi.org/10.1007/s12205-020-0987-0.
Wan, X. S., Q. Hu, and M. Liao. 2017. “Salt crystallization in cold sulfate saline soil.” Cold Reg. Sci. Technol. 137: 36–47. https://doi.org/10.1016/j.coldregions.2017.02.007.
Wang, D. X., Z. W. Zhang, X. Q. Wang, and W. L. Zou. 2022. “Road performance and microscopic mechanism of cement-modified expansive soil under dry-wet and freeze-thaw cycles.” [In Chinese.] J. Cent. South Univ. 53 (1): 306–316.
Wang, Y. B., X. Liu, M. X. Lv, and Z. Y. Zhang. 2023. “Mechanisms and influencing factors of hydrothermal processes in active layer soils on the Qinghai-Tibet Plateau under freeze-thaw action.” Catena 220: 106694. https://doi.org/10.1016/j.catena.2022.106694.
Xia, W. T., C. C. Niu, Q. B. Yu, Q. Wang, J. Q. Wang, X. Sun, Z. X. Wang, and X. H. Shan. 2023. “Experimental investigation of the erodibility of soda saline-alkali soil under freeze-thaw cycle from a microscopic view.” Catena 232: 107430. https://doi.org/10.1016/j.catena.2023.107430.
Xu, J., Z. P. Wu, H. Chen, L. T. Shao, X. G. Zhou, and S. H. Wang. 2022. “Influence of dry-wet cycles on the strength behavior of basalt-fiber reinforced loess.” Eng. Geol. 302: 106645. https://doi.org/10.1016/j.enggeo.2022.106645.
Xu, W. B., and X. C. Wang. 2022. “Effect of freeze-thaw cycles on mechanical strength and microstructure of silty clay in the Qinghai-Tibet Plateau.” J. Cold Reg. Eng. 36 (1): 04021018. https://doi.org/10.1061/(ASCE)CR.1943-5495.0000267.
Xu, X. T., L. J. Shao, J. B. Huang, X. Xu, D. Q. Liu, Z. X. Xian, and W. B. Jian. 2021. “Effect of wet-dry cycles on shear strength of residual soil.” Soils Found. 61: 782–797. https://doi.org/10.1016/j.sandf.2021.03.001.
Ying, Z., Y. J. Cui, N. Benahmed, and M. Duc. 2021. “Salinity effect on the compaction behaviour, matric suction, stiffness and microstructure of a silty soil.” J. Rock Mech. Geotech. Eng. 13 (4): 855–863. https://doi.org/10.1016/j.jrmge.2021.01.002.
Zeng, Z. X., L. W. Kong, and J. Y. Cui. 2023. “Experimental investigation and modeling of the mechanical behaviour of Yanji swelling mudstone subjected to wetting-drying-freezing-thawing cycles.” Transp. Geotech. 39: 100956. https://doi.org/10.1016/j.trgeo.2023.100956.
Zeng, Z. X., L. W. Kong, M. Wang, and J. T. Wang. 2020. “Effects of remoulding and wetting-drying-freezing-thawing cycles on the pore structures of Yanji mudstones.” Cold Reg. Sci. Technol. 174: 103037. https://doi.org/10.1016/j.coldregions.2020.103037.
Zhang, M. Y., Y. M. Lai, J. M. Zhang, and S. Y. Li. 2006. “Experimental and numerical investigation on temperature characteristics of in-cuts roadbed in Qinghai-Tibetan railway.” Cold Reg. Sci. Technol. 46: 113–124. https://doi.org/10.1016/j.coldregions.2006.07.005.
Zhang, M. Y., J. G. Lu, Y. M. Lai, and X. Y. Zhang. 2018. “Variation of the thermal conductivity of a silty clay during a freezing-thawing process.” Int. J. Heat Mass Transfer 124: 1059–1067. https://doi.org/10.1016/j.ijheatmasstransfer.2018.02.118.
Zhang, Y., Y. Ma, R. Z. Tian, H. Zhang, Y. Zhang, and F. Jia. 2022. “Impact of sodium chloride on shear behavior of saline soil with high sulfate during cooling.” Phys. Chem. Earth. 128: 103265. https://doi.org/10.1016/j.pce.2022.103265.
Zhao, G. T., Z. Han, W. L. Zou, and X. Q. Wang. 2021. “Evolution of mechanical behaviours of an expansive soil during drying-wetting, freeze-thaw, and drying-wetting-freeze-thaw cycles.” Bull. Eng. Geol. Environ. 80 (10): 8109–8121. https://doi.org/10.1007/s10064-021-02417-w.
Zhu, R., Z. Y. Cai, Y. H. Huang, C. Zhang, W. L. Guo, and Y. Wan. 2022. “Effects of wetting-drying-freezing-thawing cycles on mechanical behaviors of expansive soil.” Cold Reg. Sci. Technol. 193: 103422. https://doi.org/10.1016/j.coldregions.2021.103422.
Zhu, X., Z. Y. Cai, Y. H. Huang, C. Zhang, and W. L. Guo. 2019. “Study on mechanical properties and damage evolution of expansive soil under coupled wet-dry freeze-thaw cycles.” [In Chinese.] Chin. J. Rock Mech. Eng. 38 (06): 1233–1241.
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Journal of Cold Regions Engineering
Volume 38 • Issue 3 • September 2024
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© 2024 American Society of Civil Engineers.
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Received: Nov 2, 2023
Accepted: Jan 20, 2024
Published online: Jun 4, 2024
Published in print: Sep 1, 2024
Discussion open until: Nov 4, 2024
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