<abstract xmlns="http://www.w3.org/1999/xhtml">

This study focuses on collapsible soil from hyper-arid regions in the south of Algeria (Zeribet El Oued, Biskra). A physical characterization of the studied soil was performed which revealed that the soil samples are loess. After this, an experimental study was done on the influence of the sodium silicate solution (Na2SiO3) at different doses on the collapse potential (CP) and the microstructure of the material. The microstructure investigation was made through a scanning electron microscope (SEM) observation.The main results of this study show that the treatment of collapsible soil with sodium silicate has led to a significant reduction of the collapse potential, exceeding 87%. An effective treatment is obtained with a sodium silicate solution at the optimal dose of 0.8 mol.L−1. The SEM observations have revealed micro-structural transformations which are correlated to changes to geotechnical behavior.
</abstract>

This study focuses on collapsible soil from hyper-arid regions in the south of Algeria (Zeribet El Oued, Biskra). A physical characterization of the studied soil was performed which revealed that the soil samples are loess. After this, an experimental study was done on the influence of the sodium silicate solution (Na2SiO3) at different doses on the collapse potential (CP) and the microstructure of the material. The microstructure investigation was made through a scanning electron microscope (SEM) observation.The main results of this study show that the treatment of collapsible soil with sodium silicate has led to a significant reduction of the collapse potential, exceeding 87%. An effective treatment is obtained with a sodium silicate solution at the optimal dose of 0.8 mol.L−1. The SEM observations have revealed micro-structural transformations which are correlated to changes to geotechnical behavior.

Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria

Faculty of Technology University of Mostepha Ben Boulaid

University of Sidi Bel Abbes, Faculty of Technology

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This study focuses on collapsible soil from hyper-arid regions in the south of Algeria (Zeribet El Oued, Biskra). A physical characterization of the studied...

Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria

Publié en ligne: 29 déc. 2023

Pages: -

DOI: https://doi.org/10.2478/sspjce-2023-0013

Mots clés
open structure, collapsible soil, chemical treatment, microstructure

© 2023 Ouassila Bahloul et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria

Publié en ligne: 29 déc. 2023

Pages: -

DOI: https://doi.org/10.2478/sspjce-2023-0013

Mots clésopen structure, collapsible soil, chemical treatment, microstructure

© 2023 Ouassila Bahloul et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
open structure, collapsible soil, chemical treatment, microstructure