Applications of Microbially Induced Calcium Carbonate Precipitation on Non-Woven Geotextiles

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Duman E., Sarıçiçek Y. E., Pekcan O., Gurbanov R., Gözen A. G.

7th EuroGeo Conference, Warszawa, Polonya, 4 - 07 Eylül 2022, cilt.1260, sa.12024, ss.1-8

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1260
  • Doi Numarası: 10.1088/1757-899x/1260/1/012024
  • Basıldığı Şehir: Warszawa
  • Basıldığı Ülke: Polonya
  • Sayfa Sayıları: ss.1-8
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Recently, an innovative ground improvement method known as microbially induced

calcium precipitation (MICP) has been proposed as an alternative to conventional ground

improvement techniques. Having numerous advantages such as being environmentally friendly

and promoting sustainable solutions, MICP has been studied by researchers from various civil

engineering sub-disciplines to solve problems related to crack propagation of concrete,

insufficient soil strength characteristics, soil erosion, asphalt cracks, etc. This study aims at

moving MICP one step further by introducing a hybrid approach that combines MICP and

geotextiles to produce a good quality product for reliable field use. Within this scope, MICP is

applied on non-woven geotextiles. Physical (imaging) and mechanical (puncture resistance)

properties of non-woven geotextiles subjected to MICP treatments under soaking conditions are

investigated. Puncture resistance tests are performed and the details of laboratory work including

specimen preparation and MICP treatments are presented in this paper. This study, together with

its implications for future works, also highlights the next steps to be taken for properly using the

MICP method when other geosynthetics are used.