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

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 si...

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Main Authors: Bahloul Ouassila, Tebbi Fatima Zohra, Lekouara Laid
Format: Article
Language:English
Published: Sciendo 2023-12-01
Series:Selected Scientific Papers: Journal of Civil Engineering
Subjects:
Online Access:https://doi.org/10.2478/sspjce-2023-0013
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author Bahloul Ouassila
Tebbi Fatima Zohra
Lekouara Laid
author_facet Bahloul Ouassila
Tebbi Fatima Zohra
Lekouara Laid
author_sort Bahloul Ouassila
collection DOAJ
description 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.
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spelling doaj.art-952a2fcc75b743d8b88635b71df463ce2024-02-06T09:10:23ZengSciendoSelected Scientific Papers: Journal of Civil Engineering1338-72782023-12-0118110.2478/sspjce-2023-0013Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern AlgeriaBahloul Ouassila0Tebbi Fatima Zohra1Lekouara Laid21LGC-ROI. Civil Laboratory-Risks and Structures Interactions. Faculty of Technology University of Mostepha Ben Boulaid, Batna 2, Algeria2LRNAT Laboratory, Earth Sciences and Universe Institute. University of Mostepha Ben Boulaid, Batna 2, Algeria3Faculty of Science and Technology, University of Abbés Laghrour Khenchela, AlgeriaThis 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.https://doi.org/10.2478/sspjce-2023-0013open structurecollapsible soilchemical treatmentmicrostructure
spellingShingle Bahloul Ouassila
Tebbi Fatima Zohra
Lekouara Laid
Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
Selected Scientific Papers: Journal of Civil Engineering
open structure
collapsible soil
chemical treatment
microstructure
title Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
title_full Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
title_fullStr Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
title_full_unstemmed Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
title_short Experimental Study of the Physico-Chemical Stabilization of a Loess by Sodium Silicate: Case of Southern Algeria
title_sort experimental study of the physico chemical stabilization of a loess by sodium silicate case of southern algeria
topic open structure
collapsible soil
chemical treatment
microstructure
url https://doi.org/10.2478/sspjce-2023-0013
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AT lekouaralaid experimentalstudyofthephysicochemicalstabilizationofaloessbysodiumsilicatecaseofsouthernalgeria