The Effect of Salinity on the Swelling Behavior of Expansive Soils under Wetting and Drying Cycles

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Goli Kalanpa reza; AHMADI HOJJAT; Goli Kalanpa esmaeil

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Journal: APPLIED SOIL RESEARCH Year:2018 | Volume:6 | Issue:1 Page(s): 85-97

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Information Journal Paper

Title

The Effect of Salinity on the Swelling Behavior of Expansive Soils under Wetting and Drying Cycles

Author(s)

Goli Kalanpa reza | AHMADI HOJJAT | Goli Kalanpa esmaeil | Issue Writer Certificate

Keywords

Engineering propertiesQ1

Free swellingQ1

SalinityQ1

Wetting-dryingQ1

Abstract

Expansive soils are known as problematic soils that show volume change while subjected to moisture content variation. Changing volume of such soils, specially the basis of light structure like base of canals with rigid lining lead to cause high costs. This type of soils evolves more clay and the magnitude of expansion depends upon to the type of minerals and molecular connections. Furthermore the type of chemical materials which is added to the soil, precise an explanatory definition of Engineering properties of the soil. In this research the effect of Salinity on the behavior of clayey soils under wetting and drying cycle was investigated. In this regards, three expansive soil sample from Lake Urmia basin including zero, two and four weighty percent of NaCl were prepared and Free swelling tests under wetting and drying cycles with monitoring of Salinity variation were conducted. The results of this investigation revealed that the maximum expansive is referring to the second cycle, as well the expansive behavior after 6 cycle decrease significantly. Also, the achievements of this study confirmed that in the specimens including salt the gravity forces between ions over clays and cation increases and it cause to decrease of swelling. Whereas, in the specimens including 4% Salinity the minimum expansive was shown that this may practical as a simple method to control the expansive behavior of clays.

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APA: Copy

Goli Kalanpa, reza, AHMADI, HOJJAT, & Goli Kalanpa, esmaeil. (2018). The Effect of Salinity on the Swelling Behavior of Expansive Soils under Wetting and Drying Cycles. APPLIED SOIL RESEARCH, 6(1 ), 85-97. SID. https://sid.ir/paper/261860/en

Vancouver: Copy

Goli Kalanpa reza, AHMADI HOJJAT, Goli Kalanpa esmaeil. The Effect of Salinity on the Swelling Behavior of Expansive Soils under Wetting and Drying Cycles. APPLIED SOIL RESEARCH[Internet]. 2018;6(1 ):85-97. Available from: https://sid.ir/paper/261860/en

IEEE: Copy

reza Goli Kalanpa, HOJJAT AHMADI, and esmaeil Goli Kalanpa, “The Effect of Salinity on the Swelling Behavior of Expansive Soils under Wetting and Drying Cycles,” APPLIED SOIL RESEARCH, vol. 6, no. 1 , pp. 85–97, 2018, [Online]. Available: https://sid.ir/paper/261860/en

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