Effect of glass fibre on the strength and durability of artificially cemented alluvial clay

Ekinci A., Arrieta Baldovino J., Aydın E., Hanafi M.

International Journal of Geotechnical Engineering, vol.18, no.3, pp.275-290, 2024 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 3
  • Publication Date: 2024
  • Doi Number: 10.1080/19386362.2024.2359763
  • Journal Name: International Journal of Geotechnical Engineering
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Computer & Applied Sciences, Geobase, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.275-290
  • Keywords: Clay, durability, glass fibre, ground improvement, stiffness, strength
  • Middle East Technical University Affiliated: Yes

Abstract

Using cement with fibers is a cost-effective way to improve soft clays’ engineering properties. This study investigates the strength, stiffness, and durability of artificially cemented alluvial clay stabilized with glass fiber. Unconfined compressive strength and shear wave velocity tests were used, along with microstructural analysis via scanning electron microscopy and energy-dispersive spectroscopy. Durability and resistance to harsh weather were evaluated using wet-dry cycles. The combination of cement and glass fiber improved the mechanical response, with 0.4% glass fiber being the most effective. A blend of 0.4% glass fiber with 13% cement showed the highest strength and stiffness improvement and reduced mass loss. This mixture, supported by unique power functions forecasting its properties, is suitable for various civil engineering projects, such as unbounded sub-layers, highway barriers, stone columns, and ground improvement.