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Effect of hardened cement waste and fresh cement in the treatment of expansive soil

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Category: Content №3 2024

Last Updated on 28 June 2024

Published on 30 November -0001

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Authors:

O.Mansouri*, orcid.org/0000-0002-5574-9882, LMGHU Laboratory Civil Engineering Department, Faculty, of Technology, 20 August 1955 University, Skikda, Algeria

S.Berdoudi, orcid.org/0000-0002-3612-6823, LAVAMINE Laboratory, Mining Department, Faculty of Earth Sciences Badji Mokhtar University, Annaba, Algeria

N.Houssou, orcid.org/0000-0002-2304-6867, LMGHU Laboratory Civil Engineering Department, Faculty, of Technology, 20 August 1955 University, Skikda, Algeria

A.Bouslama, orcid.org/0009-0004-5218-7708, Department of Architecture, Faculty of Earth Sciences, Badji Mokhtar University, Annaba, Algeria

W.Kherfane, orcid.org/0009-0000-3483-7800, Laboratory of Soil and Hydraulic, Department of Hydraulic, Badji Mokhtar University, Annaba, Algeria

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (3): 095 - 099

https://doi.org/10.33271/nvngu/2024-3/095

Abstract:

Purpose. To study the effect of hardened cement waste and compare it to the effect of fresh cement in the treatment of expansive soil.

Methodology. To show the performance of hardened cement waste compared to that of fresh cement, an experimental study is conducted concerning a swelling clay soil in the Mila region of eastern Algeria. The study involves a series of soil treatment tests with fresh cement and hardened cement waste (with reasonable proportion) for each type of cement. Finally, a comparison of the influence of the addition of hardened cement waste and the addition of fresh cement on the physical and mechanical behavior of the soil.

Findings. Treatment with fresh cement provides a good improvement in certain properties, and in this work we show that the use of hardened cement waste could also improve the physical and mechanical characteristics of the treated soil.

Originality. The originality of this work is to replace fresh cement with the waste of hardened cement in the treatment of clay soils in general and swelling soils in exceptional cases to minimize the cost of treatment with fresh cement and protect the environment from waste of the cement.

Practical value. This study shows that the results obtained by adding 6 % of fresh cement and 6 % of hardened cement waste changed the physical and mechanical properties of the soil (plasticity, bearing capacity, swelling and settlement). Comparison of the results obtained shows that the performance of hardened cement waste represents 90 to 98 % of the performance of fresh cement. The convergence of the treatment results indicates the possibility of replacing fresh cement with hardened waste cement in soil stabilization.

Keywords: treatment, expansive soil, plasticity, hardened cement waste, fresh cement

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