An investigation on the effect of lime addition on UCS of Indian black cotton soil

Randhawa, Karanbir Singh; Chauhan, Rajeev; Kumar, Raman

doi:10.1016/j.matpr.2021.05.586

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…Under normal field conditions, the standard time for acidity neutralization after lime application is, on average, 60 days. This is due to the chemical behavior in the soil, which depends on the constant presence of water so that acidity neutralization reactions can occur (Singh Randhawa et al, 2021). Therefore, a longer incubation time allows soil acidity to be corrected more efficiently.…”

Section: Resultsmentioning

confidence: 99%

Nickel iron mining slag and soil acidity correction

Santos,

Silva,

Souza

et al. 2024

Cad. Pedagógico

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Soil acidity is one of the limiting factors of agricultural production most commonly reported in oxidic soils, such as Oxisols often found in the Brazilian Cerrado regions for example. The dredging is the most efficient management practice in the correction of soil acidity and increase of base saturation levels. The nickel iron mining scora is a residue that has relevant amounts of magnesium silicate, and may have neutralization capacity of soil acidity. Therefore, the objective of this work was to value the potential of magnesium silicate as a soil acidity corrective. The experimental design used was completely randomized, arranged in a 2x5x5 factorial scheme with twelve replications, where the 1st factor consisted of two hatching dates, 30 and 60 days, the 2nd factor consisted of five doses of mining slag: 0, 90, 120, 150 and 180 Mg ha-1, and the 3rd factor consisted of five doses of dolomític limestone: 0, 90, 120, 150 and 180 Mg ha-1. The mining slag did not present soil pH neutralization power under the evaluated conditions. However, it presented potential for neutralization under conditions of lower granulometry and greater solubilization.

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Section: Resultsmentioning

confidence: 99%

Nickel iron mining slag and soil acidity correction

Santos,

Silva,

Souza

et al. 2024

Cad. Pedagógico

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“…On the other hand, Shen, et al, 2021 [7], used fine soil treated with lime as backfill material for a geogrid reinforced containment structure, in order to know the behaviour of parameters such as lateral and vertical soil pressure and deformations. As a result, it has been observed that lime-stabilized soil tends to have greater stiffness with the passage of curing time and therefore less deformations and stresses [1]. Similarly, [4] in their research, conclude that the shear strength of the soil has a significant improvement with the addition of lime, however, in this case a process of kneading and compaction is performed to determine differences between both types of treatments.…”

Section: Introductionmentioning

confidence: 94%

“…However, there are restrictions on the use of soils when these materials are predominantly fine-grained soils because they exhibit characteristics of low shear strength, high plasticity and compressibility, difficulties in compaction and in some cases are potentially expansive when in contact with water. This makes soil stabilization with quicklime or cement become alternatives to improve the behaviour of these materials and incorporate them in construction sites [1].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the use of residual soils of the Batolito of Antioqueño stabilized with quicklime for the construction of embankments and mechanically stabilized retaining structures

Rivera,

Velásquez,

Hidalgo

2024

MATEC Web Conf.

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In general, road construction requires the exploitation of large quantities of granular materials, and this generates significant economic and environmental impacts. The use of excavated materials for the construction of fills, embankments and reinforced earth retaining structures is an ideal solution to reduce the exploitation of raw materials. However, the use of excavated materials can be limited when these materials are fine-grained or have low mechanical specifications. In this sense, soils stabilized with quicklime have become a viable alternative for road construction, reducing the use of quarried materials. Although there are standards and techniques for the use of quicklime improved soils for pavements, today the evaluation process of these materials for embankment and fill construction is not well established. This paper presents the results of an investigation to determine the impact of quicklime soil stabilization on the design of embankments and retaining structures reinforced with geosynthetics. First, a road embankment is presented for which a sensitivity analysis was carried out in terms of geometry and volume of material required. Secondly, a mechanically stabilized wall with geosynthetics is presented in which a sensitivity analysis is performed in terms of the amount of geotextile reinforcement required. In both cases, the models were analyzed using the shear strength parameters of a residual soil of the Antioquian batholith in its natural state and stabilized with quicklime obtained in laboratory tests. A quicklime content of 2% and design processes according to Federal Highway Administration (FHWA) manuals were used. The results show that in the embankment a reduction in the volume of material is obtained when using stabilized soil of around 15%, since greater slopes and heights can be used with respect to the geometry of the soil in its natural state. In the case of the stabilized wall, a reduction of approximately 50% in the amount of geosynthetics required was observed, since with the case of stabilized soil it is possible to achieve layer reinforcements of greater thickness and lower strength than those obtained with the soil in its natural state. Both cases show that the implementation of soils stabilized with quicklime can be beneficial in terms of costs since a reduction in resources and materials can be achieved.

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“…However, there are restrictions on the use of soils when these materials are predominantly fine-grained because they exhibit characteristics of low shear strength, high plasticity and compressibility, difficulties in compaction and in some cases are potentially expansive when in contact with water. This makes soil stabilization with quicklime or cement become alternatives to improve the behaviour of these materials and incorporate them in construction sites [1].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the shear strength of residual limestabilized soils from the Antioquian batholith

Velásquez,

Rivera,

Hidalgo

2024

MATEC Web Conf.

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In general, the construction of roads demands the exploitation of high amounts of granular materials, and this generates important economic and environmental impacts. The use of materials from excavations for the construction of fills and embankments is an ideal solution to reduce the exploitation of virgin materials. However, the use of excavation materials may be limited when these materials are fine-grained or have low mechanical specifications. In this sense, soils stabilized with quicklime have become a viable alternative for road construction, reducing the use of quarry materials. Although there are standards and techniques for the use of soils improved with quicklime for pavements, today the process for evaluating these materials for the construction of embankments and fills is not well established. This research presents the evaluation of the resistance behaviour of residual soils resulting from the weathering of the Antioquian Batolito (Antioquia-Colombia) when are subjected to quicklime stabilization. The optimal percentage of quicklime was determined by means of unconfined compression tests for dosages of 1%, 2% and 3%. Direct shear tests were used to study the influence of quicklime in soil properties like cohesion and friction angle in both natural and stabilized soils. The soil studied corresponds to a silty sand (SM). A factorial 2 x 3 experiment design was made to determine the number of tests with density, quicklime percentage and curing temperature as independent variables and unconfined compressive strength (qu) as response variable. A total of 54 unconfined compression tests and 27-seven direct shear tests were conducted. The results showed a significant increase in the strength of the materials treated with quicklime in relation to the natural state. There were increases greater than 100%, 50% and 15% in cohesion, unconfined compression, and friction angle respectively. The larger increment was calculated with 2% and 3% of quicklime dosage. However, due to cost benefits the optimum percentage of quicklime considered was set to 2%.

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An investigation on the effect of lime addition on UCS of Indian black cotton soil

Cited by 11 publications

References 9 publications

Nickel iron mining slag and soil acidity correction

Nickel iron mining slag and soil acidity correction

Evaluation of the use of residual soils of the Batolito of Antioqueño stabilized with quicklime for the construction of embankments and mechanically stabilized retaining structures

Evaluation of the shear strength of residual limestabilized soils from the Antioquian batholith

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