Investigation of the Effect of Chemical Additives on Performance in the Deep Mixing Method with Model Experiments

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Özçoban M. Ş., Çolak Y. E., Mert M.

International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2024), Balıkesir, Türkiye, 19 - 21 Temmuz 2024, cilt.1, sa.45, ss.135-139, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Balıkesir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.135-139
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Abstract
This study aims to improve clayey soils by deep mixing method and investigate the effect of magnesium oxide
(MgO) on this process. Clay soils are a difficult soil type that negatively affects the durability and stability of
structures. Therefore, in our study, the effect of MgO in the deep mixing method for the improvement of clayey
soils was examined.
The experiments were carried out in a laboratory environment, and clay soils were improved by using the smallscale model deep mixing method. This method is a technique to improve the mechanical properties of the soil.
It aims to investigate the use of magnesium oxide (MgO), which is low-cost and environmentally friendly, as an
alternative to cement and chemical remediation techniques. Cement and magnesium oxide were used together
within the scope of the project. The percentage of cement and MgO was determined as the percentage by weight
of dry clay, the amount of cement was chosen as 20%, and the amount of MgO was chosen as 0%, 5% and 10%.
The water/binder ratio was determined as 1 and the soil was prepared with optimum water content.
The samples prepared in the experiments were subjected to the unconfined pressure test and the results were
examined. The results obtained show that the strength increases with increasing MgO content. These results show
that it is possible to improve clayey soils by deep mixing with magnesium oxide, which is an environmentally
friendly and economical alternative.
This study has the potential to provide an effective solution that can be used in the construction industry and offers
an alternative approach to cement-based remediation techniques. Additionally, it offers a new perspective in the
field of geotechnical engineering, emphasizing the importance of the use of environmentally friendly materials.