Experimental Evaluation of Lime Sludge Performance in Subgrade Stabilization

Zhang, Bin; Yu, Xiong

doi:10.1061/9780784412121.387

Cited by 5 publications

(3 citation statements)

References 1 publication

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“…Meanwhile, cation exchange involves the substitution of monovalent cations like sodium (Na + ) and hydrogen (h + ) in the soil with calcium (Ca 2+ ) present in Ca(Oh) 2 . because of this substitution, the double diffuse layer (ddl) becomes thinner, and consequently, the attraction between soil particles intensifies [44][45]. pozzolanic reactions involve the formation of calcium-silicate hydrate (C-S-h) and calcium-aluminate-hydrate (C-A-h) gels over time, and cementitious properties are presented by both these gels.…”

Section: Resultsmentioning

confidence: 99%

Archives of Mining Sciences

Ahmad

2021

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The STrengTh Behaviour of TranSiTional group a-2-7 Soil STaBiliSed wiTh fly aSh and lime powder recent works aimed to investigate geotechnical properties of Transitional Group A-2-7 (TGA-2-7) soil affected by the use of hydrated lime and fly ash class F, by-products from quarries and a cement factory in Jordan, to compensate for the gap in the granular distribution. host soil was exposed to various proportions of fly ash and lime powder. The blended specimens were subjected to different tests related to index properties, including Atterberg limits, compaction properties and California bearing ratio. The results demonstrate that 2% fly ash led to a reduction in the plasticity index from 19% to 10%, while lime powder reduced it from 19% to 13%. A sufficient improvement of maximum dry density was observed at 20% lime addition and increased from 15.11 kN/m 3 to 16.29 kN/m 3 . California bearing ratio that measures the strength soil linearly increased up to 10% induced by 20% lime addition.

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Section: Resultsmentioning

confidence: 99%

Archives of Mining Sciences

Ahmad

2021

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“…[3] studied the impact of lime treatment on expansive soil engineering behavior, and they found that both swell percent and swell pressure decreased to zero with addition of a given amount of lime to expansive soils. [28] conducted an experimental study to evaluate the use of lime sludge as soil stabilizer. Experimental study was conducted on five typical types of expansive soils in Ohio State in America.…”

Section: Literature Reviewmentioning

confidence: 99%

Utilization of Lime Sludge Activated by Salt in Egyptian Expansive Soil Improvement

Sharaby

mashad

Fakhry

et al. 2021

AJAS

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Expansive soils are active clays which cause engineering problems all over the world. This research deals with the impact of lime sludge (LS) as industrial solid waste from sugar-cane factory and sodium chloride salt (NaCl) on engineering properties of expansive soil. In this research, an analytical study of chemical and physical properties of Egyptian expansive soil in Sixth of October City was made as a case study. The laboratory results showed improvement of chemical, microstructural properties and thus the engineering properties of this soil. The results of chemical analysis showed the ability of soil to improve pH; soil alkalinity raise to the required level of stabilization. After soil treatment, Microstructure scanning electron with energy dispersive spectroscopy (SEM-EDX) analyses showed that new cementitious compounds are formed and soil was changed from a weak dispersed structure to strong ﬂocculated structure. It was also observed by increasing LS and NaCl concentrations the plastic limit increased and the liquid limit decreased, hence decreased plasticity index; the rate of soil free swelling is decreased due to change of expansive soil texture. Therefore, lime sludge activated by NaCl has positive effects on engineering properties of soil. By this way we protect the environment from industrial solid wastes.

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“…Zhang et al (2012) studied about the use of lime sludge as subgrade stabilizing agent. This study planned with addition of lime sludge and it reduces the plastic behaviour of soil and increases the soil deformation modulus [8]. Oormila.T.R , T.V.Preethi (2014) evaluate the efficiency of GGBS with fly ash for clay satbilization.…”

Section: Previous Studiesmentioning

confidence: 99%

Experimental Study on Building Demolished Waste Stabilized Expansive Soil with Potassium Chloride

Ganesh¹,

Prasad²,

Raju³

2018

IJET

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All the civil engineering projects such as highways, water reservoirs, railways, buildings etc. requires large quantity of earth material. The mankind was wondering about the instability of earth materials especially expansive soil for centuries. Large areas are being covered with highly plastic and expansive soil quite often which is not suitable for such purpose. They can be hard when dry and they can be soft in moist conditions. Soils subjected to volumetric changes with seasonal moisture variation always create problem for lightly loaded structure by consolidating under load. It results in excessive settlement of superstructures usually and differential movements causing damage to foundation systems, structural elements and architectural features. Promising results were obtained by various researchers for the application of such expansive soil after stabilization with additives such as sand, silt, lime, fly ash, etc. A relatively new solid waste, Building Demolished Waste (BDW), can be used for stabilization of expansive soils for various uses in combination with potassium chloride. This study was planned to access the role of potassium chloride inclusions in improving the weak expansive soil besides stabilizing it with Building Demolished Waste in different proportions.

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Experimental Evaluation of Lime Sludge Performance in Subgrade Stabilization

Cited by 5 publications

References 1 publication

Archives of Mining Sciences

Archives of Mining Sciences

Utilization of Lime Sludge Activated by Salt in Egyptian Expansive Soil Improvement

Experimental Study on Building Demolished Waste Stabilized Expansive Soil with Potassium Chloride

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