Study The Geotechnical Properties Of Expansive Soils Under Variable Moisture Conditions

Authors

  • Zuhair Abd Hacheem Civil Engineering, Geotechnical Engineering Faculty Member Assistant Professor Dr. Department Of Water Resources Engineering Engineering College, Mustansiriyah University Iraq.
  • Sabah Hassan Fartosy Civil Engineering / Geotechnical Engineering Faculty Member Assistant Professor Dr. Department Of Water Resources Engineering Engineering College Mustansiriyah University Iraq.
  • Abdul-Sahib T. Al-Madhhachi Water Resources Engineering / Water Resources Engineering Faculty Member Professor Dr. Department Of Water Resources Engineering Engineering College Mustansiriyah University Iraq.
  • Haider Ali Al-Mussawy Civil Engineering / Water Resources Engineering Faculty Member Professor Dr. Department Of Water Resources Engineering Engineering College Mustansiriyah University Iraq
  • Jinan Marzooq Faleeh Civil Engineering Engineer Department Of Civil Engineering Engineering College Mustansiriyah University Iraq

DOI:

https://doi.org/10.63278/mme.vi.1672

Keywords:

Swelling soils, moisture content, dry density, unconfined compression test, direct shear test, triaxial shear test.

Abstract

The purpose of this study is to understand how the moisture content and dry density impact the maximum stress, strain at failure, shear strength, as well as axial stress at failure in swollen soil. This occurs through unconfined compression, direct shear and triaxial shear tests, after which it is determined that the presence of moisture can affect the soil’s strength and less moisture with higher dry density makes the soil better able to resist fatigue and become stronger. From unconfined compression, it is evident that the soil with the lowest moisture had maximum stress and the least stress to fail.   Direct shear and triaxial shear also showed that adequate moisture content tends to support the cohesion and friction between particles, but higher moisture causes both of these to decrease. It was found that proper moisture management helps prevent the instability of swelling soil.

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How to Cite

Hacheem, Zuhair Abd, Sabah Hassan Fartosy, Abdul-Sahib T. Al-Madhhachi, Haider Ali Al-Mussawy, and Jinan Marzooq Faleeh. 2025. “Study The Geotechnical Properties Of Expansive Soils Under Variable Moisture Conditions”. Metallurgical and Materials Engineering, May, 982-92. https://doi.org/10.63278/mme.vi.1672.

Issue

Vol. 31 No. 5 (2025)

Section

Research

License

Copyright (c) 2025 Zuhair Abd Hacheem, Sabah Hassan Fartosy, Abdul-Sahib T. Al-Madhhachi, Haider Ali Al-Mussawy, Jinan Marzooq Faleeh

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