Salt Expansion and Frost Heave in Cooling Sulfate Saline Soil

YING Sai; ZHOU Feng-xi; WEN Tao; WANG Shi-ji; CAO Ya-peng

doi:10.11988/ckyyb.20200358

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Journal of Changjiang River Scientific Research Institute ›› 2021, Vol. 38 ›› Issue (6) : 116-122. DOI: 10.11988/ckyyb.20200358

ROCKSOIL ENGINEERING

Salt Expansion and Frost Heave in Cooling Sulfate Saline Soil

YING Sai^1,2, ZHOU Feng-xi¹, WEN Tao², WANG Shi-ji², CAO Ya-peng³

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Abstract

The aim of this study is to explore the connection between salt expansion and frost heave in cooling sulfate saline soil. Freezing deformation tests are conducted on sulfate saline soil samples to examine the variations of salt expansion and frost heave of soil under varying water and salt content. The salt expansion and frost heave are controlled by changing the water content and salt content in the freezing process. Freezing temperature is set as the demarcation point identifying between salt expansion and frost heave. Results reveal a duplicate effect between salt expansion and frost heave in the freezing process, i.e. there is no positive correlation between total deformation of samples and crystalline volume. Total deformation obeys the law of the balance of power between salt expansion and frost heave, which means that total deformation reaches the minimum when salt expansion deformation equals frost heave deformation. The curve between total deformation and ratio of salt expansion displays an M-shape. The research findings are of active significance for further understanding the mechanism, building models, and hazard prevention of salt expansion and frost heave.

Key words

sulfate saline soil / salt expansion / frost heave / freezing temperature / freezing deformation test / duplicate effect / law of the balance of power

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YING Sai, ZHOU Feng-xi, WEN Tao, WANG Shi-ji, CAO Ya-peng. Salt Expansion and Frost Heave in Cooling Sulfate Saline Soil[J]. Journal of Changjiang River Scientific Research Institute. 2021, 38(6): 116-122 https://doi.org/10.11988/ckyyb.20200358

References

[1] 牛玺荣,高江平.综合考虑盐胀和冻胀时硫酸盐渍土体积变化关系式的建立[J].岩土工程学报,2015,37(4):755-760.
[2] 肖泽岸,赖远明,尤哲敏.冻融循环作用下含盐量对Na₂SO₄土体变形特性影响的试验研究[J].岩土工程学报,2017,39(5):953-960.
[3] KONIORCZYK M, GAWIN D. Modelling of Salt Crystallization in Building Materials with Microstructure: Poromechanical Approach[J]. Construction & Building Materials, 2012, 36:860-873.
[4] ESPINOSA R M, FRANKE L, DECKELMANN G. Model for the Mechanical Stress Due to the Salt Crystallization in Porous Materials[J]. Construction and Building Materials, 2008, 22(7):1350-1367.
[5] ESPINOSA R M, FRANKE L, DECKELMANN G. Phase Changes of Salts in Porous Materials: Crystallization, Hydration and Deliquescence[J]. Construction & Building Materials, 2008, 22(8): 1758-1773.
[6] SCHERER G W. Crystallization in Pores[J]. Cement & Concrete Research, 1999, 29(8): 1347-1358.
[7] SCHERER G W. Stress from Crystallization of Salt[J]. Cement & Concrete Research, 2004, 34(9): 1613-1624.
[8] LAI Y, WU D, ZHANG M. Crystallization Deformation of a Saline Soil During Freezing and Thawing Processes[J]. Applied Thermal Engineering, 2017, 120: 463-473.
[9] WU D, LAI Y, ZHANG M. Heat and Mass Transfer Effects of Ice Growth Mechanisms in a Fully Saturated Soil[J]. International Journal of Heat & Mass Transfer, 2015, 86: 699-709.
[10] WAN X, HU Q, LIAO M. Salt Crystallization in Cold Sulfate Saline Soil[J]. Cold Regions Science and Technology, 2017, 137: 36-47.
[11] LITVAN G G.Phase Transitions of Adsorbates: Ⅳ,Mechanism of Frost Action in Hardened Cement Paste[J]. Journal of the American Ceramic Society,2010,55(1):38-42.
[12] 徐学祖,王家澄,张立新.冻土物理学[M].北京:科学出版社,2001.
[13] 邴慧,何平,杨成松,等.开放系统下硫酸钠盐对土体冻胀的影响[J]. 冰川冻土,2006(1):126-130.
[14] 李青海,顾同欣,于升松,等.南翼山油田卤水低温结晶过程研究[J]. 物理化学学报,2011, 27(8):1803-1808.
[15] 万旭升,赖远明.硫酸钠溶液和硫酸钠盐渍土的冻结温度及盐晶析出试验研究[J].岩土工程学报,2013,35(11): 2090-2096.
[16] VERBECK G J, KLIEGER P. Studies of Salt Scaling of Concrete[J]. Highway Research Board Bulletin, 1957, 150: 1-17.
[17] CHANDRA S, XU A. Influence of Presaturation and Freeze-Thaw Test Conditions on Length Changes of Portland Cement Mortar[J]. Cement & Concrete Research, 1992, 22(4): 515-524.
[18] SELLEVOLD E J, FARSTAD T. Frost/Salt-Testing of Concrete: Effect of Test Parameters and Concrete Moisture History[J]. Nordic Concrete Research, 1991, 10: 83-100.
[19] LITVAN G G. Frost Action in Cement Paste[J]. Matériaux et Construction, 1973, 6(4): 293-298.
[20] 邓友生, 周成林. 硫酸钠溶液的盐胀与冻胀[J]. 冰川冻土, 2009, 31(5): 920-924.
[21] 李星星,王思敬,肖锐铧,等.硫酸钠溶液在降温结晶过程中的盐胀与冻胀[J].岩土工程学报,2016,38(11):2069-2077.