Interpretation of hydraulic conductivity of bentonites based on sedimentation characteristics

Dikişçi E., Moulana E. H. A., Hakan Ören A. H.

2nd International Conference on Environmental Geotechnology, Recycled Waste Materials and Sustainable Engineering, EGRWSE 2019, Illinois, Amerika Birleşik Devletleri, 16 - 20 Haziran 2019, cilt.89, ss.345-352, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 89
  • Doi Numarası: 10.1007/978-3-030-51350-4_35
  • Basıldığı Şehir: Illinois
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.345-352
  • Anahtar Kelimeler: Hydraulic conductivity, Sedimentation test, Swell index
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study suggests a new test method for the interpretation of hydraulic conductivity of GCLs. The proposed methodology is sedimentation test which can be applied after swell index test by vigorously shaking the graduated cylinder. The study basically shows that the bentonites may have the same swell index values, but different hydraulic conductivities. Therefore, swell index may not be a suitable test method for the interpretation of hydraulic conductivity. However, bentonites have different sedimentation characteristics which can be correlated well with the hydraulic conductivity. For example, bentonites serving accumulation type of settling (AS) may have greater hydraulic conductivity than the bentonites serving mixed or flocculated type of settling (i.e., MS and FS).