Evolution of the properties of lime-treated silty soil in a small experimental embankment

Makki-Szymkiewicz, Lamis; Hibouche, Akli; Taïbi, Saïd; Herrier, Gontran; Lesueur, Didier; Fleureau, Jean‐Marie

doi:10.1016/j.enggeo.2015.03.008

Cited by 36 publications

(17 citation statements)

References 35 publications

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“…Besides, a uniform distribution of pH and water content was reported throughout the embankment. The study concluded that due to controlled mixing and compaction condition implemented during the construction of the embankment, as reported by Makki-Szymkiewicz et al (2015), such homogeneity in the physicochemical measurement was attained. A similar conclusion was reported by Makki-Szymkiewicz et al (2015) regarding the contribution of controlled mixing and compaction condition towards attaining a lower permeability in lime-treated soil.…”

Section: Introductionmentioning

confidence: 53%

“…In this context, improvement of the engineering properties of natural soil by chemical stabilization using lime was shown to be an efficient and effective process (Bell 1996;Little 1995). In addition to chemical stabilization, mechanical improvement, which involves the implementation of control mixing and compaction conditions by incorporating appropriate water content, binder amount, compaction energy, and compaction mechanism, was also important (Das et al 2020(Das et al , 2021Le Runigo et al 2009, 2011Makki-Szymkiewicz et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Hydromechanical and Pore-Structure Evolution in Lime-Treated Kneading Compacted Soil

et al. 2022

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Hydromechanical performances and pore-structure evolution in in-situ lime-treated soil is influenced by the implemented methodology of execution. In-situ lime-treated soil experiences kneading action during soil compaction; however, little is investigated regarding the contribution of the kneading mechanism towards hydromechanical and pore-structure evolution. This study evaluates the evolution of Unconfined Compressive Strength (UCS), hydraulic conductivity, and pores of different categories in laboratory kneaded soil. The evaluation involves results from limetreated soil subjected to different curing times and temperatures. The results obtained from laboratory kneaded and cured soils are interpreted with the one obtained from in-situ sampled soil of the same configuration after 7 years of atmospheric curing. The obtained interpretation provides an acceptable insight towards the expected long-term hydromechanical and pore-structure evolution of lime-treated soil. Thus, the study highlights the importance of reproducing an implementation mechanism in the laboratory which closely represents the field compaction.

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Section: Introductionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Hydromechanical and Pore-Structure Evolution in Lime-Treated Kneading Compacted Soil

et al. 2022

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“…With the increase of acid concentration, a certain amount of micelle structure will be generated between clay particles, the distance between clay particles will further increase, the suction between particles will further reduce, and the cohesion will continue to decline. But when the acid concentration exceeds a certain value, H + increases gradually and OH − decreases gradually; then, the reverse reaction of the reaction formulas (21) and (23) takes place, and the micelle structure will reduce, thus reducing the distance between the clay particles to a certain extent, while van der Waals force between particles increases, the cohesion rises slightly, but it is still far below the soil from pollution. Consistent with the results of the consolidated undrained triaxial test (Figure 3), the cohesion first decreased with the increase of acid concentration and then increased when the acid concentration was 5%.…”

Section: Eoretical Analysis Of Electric Double Layer Of Claymentioning

confidence: 99%

“…Moreover, lime [15][16][17][18], cement [19], gypsum [20], fly ash [21,22], and other traditional materials are usually used in curing materials. Researching on the shear properties of soil cured by traditional curing agents, Makki-Szymkiewicz et al [23] conducted triaxial test on lime-treated silty soil, and the results show that the cohesion increases and the internal friction angle is almost unchanged with the increase of the curing period. Ismail et al [24] carried out the triaxial test on calcareous soil treated with different types of cement, and analyzed the influence of different types of cement on the shear strength of cement-cured calcareous soil.…”

Section: Introductionmentioning

confidence: 99%

Triaxial Shear Test on Hydrochloric Acid-Contaminated Clay Treated by Lime, Crushed Concrete, and Super Absorbent Polymer

Fang

2019

Advances in Materials Science and Engineering

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Acid pollution weakens the bearing capacity of subgrade, and discarded concrete occupies land. The mechanical properties of hydrochloric acid-contaminated clay were investigated by triaxial consolidation undrained tests. Also, the theory of diffusion double electric layer was employed to explain the change principle of cohesion and compression characteristics of hydrochloric acid-contaminated clay. In addtion, the curing effects of lime, crushed concrete, and SAP on the shear strength of hydrochloric acid-contaminated clay were compared. The triaxial test results show that cohesion decreased with the increase of hydrochloric acid concentration. The internal friction angle firstly increased and then decreased, and the change of internal friction angle was less affected by acid concentration. The curing effect of crushed concrete was similar to that of lime, which was better than lime. SAP could only improve the cohesion of the hydrochloric acid-contaminated clay; the internal friction angle decreased significantly; the three kinds of curing materials could significantly improve the cohesion of acid-contaminated clay to be higher than the natural clay, improving the shear strength to a certain extent. Additionally, the theory analysis illustrated that due to the change in the thickness of the diffusion layer between the clay particles, the van der Waals force between the particles changed, and the colloidal formation of the micelles led to changes in cohesion. The study can provide references to the treatment of contaminated soil in engineering practice.

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“…Moreover, hemp is naturally produced, do not require much energy to process, do not require maintenance and consumes CO 2 to grow, making the hemp concrete as a carbon negative building material. The addition of hemp fibers can also reduce the density, shrinkage and cracking of soil concrete and improve the thermal properties [6,7]. The acoustic and thermal properties of soil concrete could be better than ordinary concrete, which are explained by the use of clayey soil and hemp fibers [8].…”

Section: Introductionmentioning

confidence: 99%

Design of a new soil concrete as an eco-material: Effect of clay and hemp fibers proportions

Chinh

Tan

2020

STCE

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This study presents a series of soil concrete mix that is made of excavated soils, cement, lime and hemp fibers. An experimental program was carried out on the testing samples of soil concrete with different proportions of clayey soil and hemp fibers. This program focus on several properties of soil concrete, such as compressive strength, autogenous shrinkage, drying shrinkage and water mass loss with time. The obtained results show that the compressive strength of soil concrete increases even after 28 days, and can be reduced significantly with increasing the proportion of clayey soil. The effect of clayey soil on the properties tested of soil concrete is more than that of hemp fibers. In addition, drying shrinkage associated with water mass loss allows to describe the drying process of soil concrete. Keywords: soil concrete; hemp fibers; compressive strength; autogenous shrinkage; drying shrinkage; water mass loss.

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Evolution of the properties of lime-treated silty soil in a small experimental embankment

Cited by 36 publications

References 35 publications

Hydromechanical and Pore-Structure Evolution in Lime-Treated Kneading Compacted Soil

Hydromechanical and Pore-Structure Evolution in Lime-Treated Kneading Compacted Soil

Triaxial Shear Test on Hydrochloric Acid-Contaminated Clay Treated by Lime, Crushed Concrete, and Super Absorbent Polymer

Design of a new soil concrete as an eco-material: Effect of clay and hemp fibers proportions

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