Effects of soil pulverization level on resilient modulus and freeze and thaw resistance of a lime stabilized clay

Bozbey, İlknur; Keleşoğlu, M. Kubilay; Demir, Birol; Komut, Muhammet; Comez, Senol; Ozturk, Tugba; Mert, Aykan; Öcal, Kıvılcım; Öztoprak, Sadık

doi:10.1016/j.coldregions.2018.03.023

Cited by 25 publications

(10 citation statements)

References 18 publications

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“…Tebaldi et al (2016) found that mechanical performances of a lime-stabilized clay soil was less affected by F-T cycles compared to untreated soil. Bozbey et al (2018) studied a lime stabilized clay and found the importance of using higher lime contents and extended curing time for increasing F-T resistance. In spite of the abovementioned works, knowledge on the combined effects of curing time, lime content and soil's plasticity on the F-T resistance of fine-grained soils is still limited and deserves to be further developed.…”

Section: Introductionmentioning

confidence: 99%

Effect of freeze-thaw cycles on mechanical strength of lime-treated fine-grained soils

Nguyen

Cui

Ferber³

et al. 2019

Transportation Geotechnics

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Lime treatment is a widely-used technique for the stabilization and improvement of finegrained soils in earthworks for transportation. In cold regions, lime treatment can be considered as an appropriate method to improve freeze-thaw resistance of fine-grained soils. The effectiveness of treatment can depend on soil nature, lime dosage and curing time. In the present work, three soils (silt of low plasticity, clay of low plasticity, and silt of high plasticity) were treated at three lime contents (lower, equal and higher than the lime fixation point) at four curing periods (7, 28, 90 and 365 days). The mechanical strength was determined from unconfined compression test performed on specimens having a diameter of 100 mm and a height of 100 mm. Freeze-thaw cycles were applied by varying the specimen temperature between-20°C and 20 °C, the specimens being beforehand saturated. The mechanical strength of specimen subjected to ten freeze-thaw cycles was compared to those maintained in laboratory temperature (20 °C). Results showed that freeze-thaw cycles significantly decrease the mechanical strength of sample. This decrease can be explained by damage induced by ice lenses formation/thawing during freeze-thaw cycles, as illustrated by the observation at X-ray computed tomography. Interestingly, lime treatment mitigates this damage and increase the soil freeze-thaw resistance. The treatment appears more efficient for lower plasticity soil, a higher lime content, and a longer curing time. This conclusion seems depend on the specimen preparation procedure.

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Section: Introductionmentioning

confidence: 99%

Effect of freeze-thaw cycles on mechanical strength of lime-treated fine-grained soils

Nguyen

Cui

Ferber³

et al. 2019

Transportation Geotechnics

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“…In addition, the presence of a large volume of voids can relax the stress caused by crystallization of the salt and water. Arora et al [45][46][47] pointed out that freeze-thaw cycles did not have any detrimental effect on cement-treated mixtures of Advances in Civil Engineering nonsaline sandy soil even though specimens were placed in a humidity chamber for thawing. us, the decrease in UCS shows the presence of the decay effect resulting from salt crystallization, but this effect is far slighter than those in Test I and Test II, where external water can invade specimens during the cyclic freeze-thaw process.…”

Section: Discussionmentioning

confidence: 99%

Investigation of Freeze‐Thaw Resistance of Stabilized Saline Soil

Zhou

Guan

Yan

2021

Advances in Civil Engineering

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In this paper, three freezing-thawing tests are designed to study the freeze-thaw resistance of stabilized sulfate type saline soil. The results show that different destructive modes and erosion extents are caused by different freeze-thaw conditions. The destructive effect from salt tends to be limited if there is no external water intrusion. When sufficient water is provided, ice expansion, dissolution recrystallization of salts, and ettringite growth during the thawing phase may take place. Soil water potential is used for analysis and explanation of the driving force and water migration in the stabilized soil. Pressure potential caused by the air sealed in the stabilized soil specimen leads to early water concentration in the outer parts of the specimen, and the surface layer is first eroded under the freeze-thaw cycles. A high percentage of soil stabilizer can improve the freeze-thaw resistance of stabilized soil, but a sufficiently long curing period plays a more important role. This study provides useful insights for improving the freeze-thaw resistance of solidified saline soil in road engineering.

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“…Researchers on lime stabilized soils have presented the soil-lime interaction in detail, yet few studies conducted to apply FT cycles on the stabilized soils and investigated undrained shear strength properties (Al-Mukhtar et al, 2012;Aldaood et al, 2014;Hotineanu et al, 2015;Gullu and Fedakar, 2017;Yılmaz and Fidan, 2018;Saygili and Dayan, 2019;Baldovino et al, 2021). Furthermore, instead of using a frost susceptible type of soil, the main focus was on the clayey soils so that the attention was again given to the stabilization, not the FT requirements (Yıldız and Soğancı, 2012;Güllü, 2015;Tebaldi et al, 2016;Boz and Sezer, 2018;Bozbey et al, 2018;Zhang et al, 2019;Ismeik and Shaqour, 2020). There are very few studies available in the literature concerning the freezethaw resistance of the lime stabilized silty soils and it is emerging as a newly research topic (Zhan et al, 2015;Nguyen et al, 2019;Baldovino et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The effect of curing time and freeze-thaw cycles on the un-drained shear strength of lime-stabilized alluvial soils

Arslan,

Develioglu,

Firat Pulat

2023

rdlc

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This paper presents an experimental effort to elucidate the stabilization mechanism of alluvial soils with lime and check their durability against freeze and thaw (FT) cycles. The effect of stabilization-related parameters such as lime content and curing period were investigated. The lime content was changed as 0, 3, 6, 12 %, while curing periods were 7, 28, and 56 days. The mixtures were kept in a closed system cabinet at -24 and +24 Celsius degrees for 24 hours to expose the samples 0,1 and 2 FT cycles. To analyze and compare the effect of FT cycles, Unconsolidated-Undrained (UU) triaxial tests were performed under different cell pressures. In addition, SEM and EDAX analyses were conducted to evaluate the mechanism at the microstructural and compositional levels. It was determined that the highest strength could be obtained in the samples in which 6% lime content was kept in 28 days of cure. After this curing period, it has been determined that minerals that affect the mechanism between lime and soil adversely were formed. The fact that the development of chemical reactions stopped or did not progress in the 56-day curing period has confirmed the production of such minerals. However, these samples, whose strength did not increase as expected, were not affected much by FT cycles. It means, no significant difference was obtained from cycles 1 to 2, since a major part of the sample’s integrity was affected from the first cycle. The deterioration of the soil integration and growth of needle-like harmful minerals in the long term were also verified with the SEM images and EDAX analyses.

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Effects of soil pulverization level on resilient modulus and freeze and thaw resistance of a lime stabilized clay

Cited by 25 publications

References 18 publications

Effect of freeze-thaw cycles on mechanical strength of lime-treated fine-grained soils

Effect of freeze-thaw cycles on mechanical strength of lime-treated fine-grained soils

Investigation of Freeze‐Thaw Resistance of Stabilized Saline Soil

The effect of curing time and freeze-thaw cycles on the un-drained shear strength of lime-stabilized alluvial soils

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