Mechanical Behaviour of Atrazine-Contaminated Clay

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Keramatikerman M., Chegenizadeh A., Nikraz H., YILMAZ Y.

APPLIED SCIENCES-BASEL, cilt.10, sa.7, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 7
  • Basım Tarihi: 2020
  • Doi Numarası: 10.3390/app10072457
  • Dergi Adı: APPLIED SCIENCES-BASEL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Agricultural & Environmental Science Database, Applied Science & Technology Source, Communication Abstracts, INSPEC, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Anahtar Kelimeler: Soil Mechanics, Experimental Analysis, Soil Contamination, Clay, SHEAR-STRENGTH CHARACTERISTICS, GEOTECHNICAL PROPERTIES, OIL CONTAMINATION, SATURATED CLAYS, MOTOR OIL, LIQUEFACTION, SAND, SOILS, COMPRESSIBILITY, ADSORPTION
  • Gazi Üniversitesi Adresli: Evet

Özet

Atrazine (ATZ) is one of the most heavily used types of herbicide that is currently applied in the agricultural industry all around the world, especially Australia and the United States. This study investigates the effect of atrazine contamination on the mechanical characteristics of two Western Australian natural clays and one commercial type of clay. A series of the Atterberg limit, compaction, and torsional ring shear tests were performed on the clays contaminated with 2, 4, and 6% atrazine content. The results showed that increasing the atrazine content led to a reduction in both liquid limit (LL) and plastic (PL) of the tested soils. Similarly, the optimum moisture content (OMC) and maximum dry density (MDD) decreased by increasing the atrazine in all tested clays. The ring shear results showed that the peak shear strength and residual stress ratio of the clays decreased by increasing the contamination. Also, the results showed that atrazine contamination caused an increase in cohesion and a decrease in the friction angle of the tested soils. Also, longer periods of contamination caused a reduction in strength characteristics of the tested soils.