Geotechnical Behavior and Physico-Chemical Changes of Lime-Treated and Cement-Treated Silty Soil

Bouras, Fawzi; Al-Mukhtar, Muzahim; Tapsoba, Nouffou; Belayachi, Naïma; Sabio, Serge; Beck, Kévin; Martin, Mylène

doi:10.1007/s10706-021-02008-2

Cited by 12 publications

(5 citation statements)

References 36 publications

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“…Lime-stabilized soils, particularly at higher concentrations, continued to display a decrease in K but remained notably above the untreated baseline. This trend is consistent with the geotechnical behavior and physicochemical changes observed in lime-treated soils [66], where the addition of lime alters the soil's properties in a way that can affect its thermal conductivity. The final observations at week 12 (Figure 6D) solidified these findings, with lime-stabilized soils exhibiting consistently higher K values, highlighting the nuanced and concentration-dependent effectiveness of lime in improving and sustaining K under prolonged sun exposure.…”

Section: Lime's Effect On Hejaz Soil a (Thermal)supporting

confidence: 87%

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Muhudin,

Zami,

Budaiwi

et al. 2024

Sustainability

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Soils in Saudi Arabia are emerging as potential sustainable building materials, a notion central to this study. The research is crucial for advancing construction practices in arid areas by enhancing soil thermal properties through stabilization. Focusing on Hejaz region soils, the study evaluates the impact of stabilizers such as cement, lime, and cement kiln dust (CKD) on their thermal behavior. This investigation, using two specific soil types designated as Soil A and Soil B, varied the concentration of additives from 0% to 15% over a 12-week duration. Employing a TLS-100 for thermal measurements, it was found that Soil A, with a 12.5% cement concentration, showed a significant 164.54% increase in thermal conductivity. When treated with 2.5% lime, Soil A reached a thermal conductivity of 0.555 W/(m·K), whereas Soil B exhibited a 53.00% decrease under similar lime concentration, reflecting diverse soil responses. Notably, a 15% CKD application in Soil A led to an astounding 213.55% rise in thermal conductivity, with Soil B recording an 82.7% increase. The findings emphasize the substantial influence of soil stabilization in improving the thermal characteristics of Hejaz soils, especially with cement and CKD, and, to a varying extent. This study is pivotal in identifying precise, soil-specific stabilization methods in Saudi Arabia’s Hejaz region, essential for developing sustainable engineering applications and optimizing construction materials for better thermal efficiency.

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Section: Lime's Effect On Hejaz Soil a (Thermal)supporting

confidence: 87%

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Muhudin,

Zami,

Budaiwi

et al. 2024

Sustainability

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“…These factors contribute to the improved cohesion and resistance of the treated soil [38,43]. The stability of calcium hydrates formed by lime cannot be ensured since chromatography analysis demonstrated higher concentrations of Ca 2+ in lime-stabilized soil after disintegrating [24]. In contrast, the hydrates formed as a result of cement treatment demonstrate stability within the solid phase of the treated soil, as confirmed by X-ray diffraction.…”

Section: Lime-cement-stabilized Waste Soilmentioning

confidence: 95%

“…However, the use of only cement as the stabilizer may not be suitable for the treatment of large-scale waste soils, as the cement-stabilized soils, after hardening, cannot achieve high compactness during the subgrade filling. Combined stabilizers (i.e., lime and cement) are also very popular for improving waste soils [10,11,18,24] because the lime-and cement-stabilized soils obtain the improvement advantages of both cement and lime. There are few studies on the effect of soils with combined and single stabilizers at different contents on-road performance.…”

Section: Introductionmentioning

confidence: 99%

“…With respect to the stabilized soils, investigations into water stability have primarily emphasized two aspects: analyzing the concentration changes of cations (e.g., calcium ions, sodium ions, etc.) in the solution of stabilized soils after leaching [8,24,38] and assessing the weakening of strength properties resulting from water immersion [9,26,39]. Little literature has been found on disintegration characteristics for stabilized soils; moreover, there is a lack of relevant disintegration models to describe the evolution of disintegration characteristics of stabilized soils, which can be useful for the design of subgrade engineering.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Engineering Behavior and Water Resistance of Stabilized Waste Soils Used as Subgrade Filling Materials

He,

Liu,

Yan

2024

Applied Sciences

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Urban construction has generated substantial amounts of waste soils, impeding urban ecological development. With the aim of promoting waste recycling, waste soils possess a high potential for sustainable utilization in subgrade construction. However, these waste materials exhibit inadequate engineering properties and necessitate stabilization for an investigation into their long-term performance as subgrade filling materials. Initially, a thorough assessment and comparison were conducted to examine the key mechanical properties of lime- and cement-stabilized soils with mixed ratios (total stabilizer contents ranging from 2% to 8%). The results indicated that these soils met the requirements of subgrade materials except for the 2% lime-treated soil. Subsequently, to reveal the improvement in water resistance of stabilized waste soil (e.g., under conditions of rainfall or elevated groundwater table), the effects of soil densities and stabilizer contents on the disintegration characteristics were investigated using a range of disintegration tests. An evolutionary model for the disintegration ratio of stabilized soils was then developed to predict the process of disintegration breakage. This model facilitates the quantification of the lower disintegration rates and elevated disintegration time attributed to higher levels of compactness and stabilizer contents during a three-stage disintegration process. This enhances the understanding and evaluation of sustainable applications in stabilized waste soils used as subgrade filling materials.

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“…Although varying techniques and stabiliser agents such as cement [19][20][21][22], lime [23][24][25][26], fly ash [3,27], bottom ash [28], MICP [29,30], activated carbon [31], EICP [32,33] and waste materials [34,35] have been employed in the stabilisation of soil, cement is of common, particularly for transportation infrastructures [36]. Cement is widely used because of its advantages, such as low cost, remarkable integrity and strong water stability [37].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of cement stabilised residual soil on macro- and micro-scale for road construction

et al. 2022

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Lateritic soil is a kind of residual soil widespread in tropical countries. This soil usually possesses acceptable engineering properties to be laid under the construction projects. However, it needs treatment for transportation infrastructure such as railway and road subgrade and embankment, particularly when it is in fine-grained form. Thus, cement, one of the very common stabiliser agents in soil stabilisation, was selected to study its influence on lateritic soil at macro- and micro-levels. In order to achieve this goal, UCS, durability, FESEM and EDX tests were conducted. The results obtained indicate that the UCS increase occurs with an increase in cement content and curing time. It was also found that the shear modulus increases with cement content and curing time. The durability test results disclosed that 3% cement is not enough for soil stabilisation when used for projects in the areas subjected to cyclic wetting-drying cycles. The durability test results revealed that the UCS decreased for specimens treated with 6% cement, while on the other hand, the UCS increased for samples treated with 9% and 12% cement. The FESEM results revealed that the soil micro-structure changed with the addition of cement and curing time. The EDX results presented the chemical elements change upon adding cement and increasing curing time. Overall, it was found that cement-stabilised residual soil can be used for road construction. However, the cement percentage needed to stabilise residual soil differs depending on the standards.

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Geotechnical Behavior and Physico-Chemical Changes of Lime-Treated and Cement-Treated Silty Soil

Cited by 12 publications

References 36 publications

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Assessment of Engineering Behavior and Water Resistance of Stabilized Waste Soils Used as Subgrade Filling Materials

Evaluation of cement stabilised residual soil on macro- and micro-scale for road construction

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