In-situ stabilization of an expansive soil in desiccated state

Thyagaraj, T.; Suresh, P. Sai

doi:10.3328/ijge.2012.06.03.287-296

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…In most situations, the desired soil required to use as a construction material is located far from the site projects and its transportation represents a great challenge. When a site investigation reveals the existence of unpreferable soils such as expansive soils with high-plasticity clay, it is essential to set a suitable scheme to enhance the soil engineering characteristics [1,2,3,4,5,6,7]. For example, Bentonite clay is a common expansive soil that undergoes high volume changes (eight times its original volume) when the moisture content increases which may cause structural damage lead to damage to the structural members like cracking in reinforced foundations and borders, curbs swelling and eventually produces deformation indoors and floors [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Improvement of Bentonite Clay Characteristics by Adding Pulverized Waste Glass

Al-Soud¹

2022

GEOMATE

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Bentonite clay is the soil that undergoes high volume changes (swelling) when its moisture content increases. The soil swelling may cause structural damage leading to damage to structural members like cracking in reinforced foundations and borders, curbs swelling, and eventually produces deformation indoors and on floors. In this study, Bentonite clay with expansive characteristics was used and mixed with various amounts of Pulverized waste glass PWG (0%, 5%, 10%, and 15%). Two types of PWG were prepared: fine glass (passing sieve No. 200) and coarse glass (passing sieve No. 2 mm). Laboratory experiments were performed on Bentonite specimens blended with different amounts of PWG. The results showed that the addition of 15% by Bentonite weight of 2 mm of PWG reduces the Atterberg limits considerably. Moreover, a noticeable reduction was observed in the Bentonite samples' free swell and swelling pressure after being treated with different amounts of PWG. The observed advantages of adding the PWG to Bentonite clay soil by decreasing the volume changes and enhancing the overall properties of Bentonite clay reflect the suitability of using PGW as a good soil stabilizer. Besides reducing the impact of waste glass on the environment due to its non-biodegradable nature.

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Section: Introductionmentioning

confidence: 99%

Sustainable Improvement of Bentonite Clay Characteristics by Adding Pulverized Waste Glass

Al-Soud¹

2022

GEOMATE

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“…They used geosynthetic reinforcements, both geogrids and geotextiles, to minimize the development of longitudinal cracks in the pavements. The effect of using lime and cement deep soil mixing to reduce the heave and shrinkage of expansive subsoil underlying pavements studied by [5] .They concluded that the potential of the deep soil mixing treatment to decrease the shrink-swell related movements from expansive subsoil of moderate depths.Lime slurry technique in desiccated state used to study the efficiency of in-situ stabilization of expansive soil [6] , they noticed a considerable decrease in swelling potential and increased in the unconfined compressive strength of the treated soil. The present research is devoted to investigate the effect of drying on both undisturbed and remolded samples on the swelling at different periods ,and the effect of remolding on the undisturbed expansive soil samples also investigated at different drying periods .The research also studied the effect on the mineralogical compositions , Atterberg limits and linear shrinkage when adding cement dust as a new additive to reduce swellings.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Approach for Swelling Soils Remedies

Alzubaidi¹

2016

Geomate

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ABSTRACT:The effect of drying and remolding on undisturbed expansive soil samples were investigated at different periods. The results showed that the swelling potentials for remolded samples were higher than those for undisturbed samples for different periods of testing. The results also showed that final swells and swell pressures increased as the initial moisture contents decrease for both remolded and undisturbed samples. The swelling potential increased as the initial dry density increases for both remolded and undisturbed expansive soil samples, and vice versa The cement dust used as a new additive material to decrease the swelling potential of the expansive soil. The results showed that the plasticity index, linear shrinkage, and clay minerals decreased with increasing cement dust percentage, where 50% of the montmorillonite disappeared after treatment the soil with 5% cement dust. The effect of cement dust columns on the swelling potential of the soil also studied extensively. The cement dust columns were embedded in the middle of the expansive soils using CBR mould .The results showed that the swelling potential decreased with increasing number of cement dust columns and when increasing the diameter of the cement dust columns ,a distinctive decrease in the swelling potentials were recorded. When decreasing the densities and increasing the diameters of cement dust columns resulted in decreasing the swelling potentials of the expansive soil. The swelling of the expansive soil been decreased when increasing the number of reinforced and non-reinforced cement dust columns. The swelling potentials showed distinctive decrease when the lengths of the reinforced cement dust columns increased.

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Expanded Polystyrene (EPS) Geofoam Columns in Expansive Soil: Preliminary Swelling Characteristics Evaluation

Selvakumar¹,

Soundara²

2018

5th International Conference on Geofoam Blocks in Construction Applications

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In-situ stabilization of an expansive soil in desiccated state

Cited by 11 publications

References 10 publications

Sustainable Improvement of Bentonite Clay Characteristics by Adding Pulverized Waste Glass

Sustainable Improvement of Bentonite Clay Characteristics by Adding Pulverized Waste Glass

Comprehensive Approach for Swelling Soils Remedies

Expanded Polystyrene (EPS) Geofoam Columns in Expansive Soil: Preliminary Swelling Characteristics Evaluation

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