Eco-friendly stabilization of highway lateritic soil with cow bone powder admixed lime and plastic granules reinforcement

Ojuri, Oluwapelumi O.; Osagie, Precious Oregbe; Oluyemi-Ayibiowu, Bamitale Dorcas; Fadugba, Olaolu George; Tanimola, Moses Oladejo; Chauhan, Vinay Bhushan; Jayejeje, Omomomi Oladapo

doi:10.1016/j.clwas.2022.100012

Cited by 14 publications

(12 citation statements)

References 27 publications

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“…These changes in MDD and OMC are due to the fact that lime, sawdust ash, and pulverised snail shell have a lower unit weight and speci c gravity compared to soil. Thus, adding lime to the soil reduces the overall weight of the soil, making it less compact and less dense [30]- [32]. Additionally, lime has a higher water-holding capacity than soil, so adding lime to the soil increases its ability to retain moisture, resulting in an increase in OMC.…”

Section: Compaction Test Resultsmentioning

confidence: 99%

Assessment of the Microstructure and Geotechnical Characteristics of Lime- Improved Lateritic Soil with the Addition of Pulverised Snail Shell and Sawdust Ash for Sustainable Highway Infrastructure

Fadugba,

Ojo,

OLUYEMI-AYIBIOWU

et al. 2024

Preprint

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This research investigated the effects of lime, Pulverized snail shell (PSS), and sawdust ash on the mechanical properties of lateritic soil for soil stabilization in construction. Various tests, including maximum dry density, moisture content, unconfined compressive strength (UCS), triaxial, permeability, compressibility, and California Bearing Ratio (CBR) tests, were conducted on soil samples with different proportions of additives. The results show that the addition of additives reduced maximum dry density and increased moisture content. The sample with 6% lime and 7.5% PSS exhibited the highest UCS of 302 kPa after 28 days of curing, while the untreated sample had a UCS of 121 kPa. Triaxial tests revealed reduced cohesion and increased angle of internal friction with higher additive content. The 6% lime and 7.5% PSS sample displayed the highest shear strength of 60.6 kPa and elastic modulus of 181.8 MPa. Permeability tests demonstrated that the 6% lime and 6% sawdust ash sample had the lowest permeability (6.67x10− 7 m/s) among the stabilized samples. The untreated soil exhibited high compressibility, whereas the 6% lime and 7.5% PSS sample exhibited the highest resistance to compression and deformation. The untreated soil had a soaked CBR value of 8%, while the 6% lime and 7.5% PSS sample achieved the highest soaked CBR value of 38%, making it suitable as a sub-base material. These findings highlight the effectiveness of lime, PSS, and sawdust ash in enhancing the mechanical properties of lateritic soil and offer valuable insights for soil stabilization in construction applications.

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Section: Compaction Test Resultsmentioning

confidence: 99%

Assessment of the Microstructure and Geotechnical Characteristics of Lime- Improved Lateritic Soil with the Addition of Pulverised Snail Shell and Sawdust Ash for Sustainable Highway Infrastructure

Fadugba,

Ojo,

OLUYEMI-AYIBIOWU

et al. 2024

Preprint

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“…Chemical and mineralogical analyses systematically complement the mechanical analyses of material characterization and strength to evaluate the geopolymer as an alternative hydraulic binder for construction. Generally, an essential criterion for choosing laterite depends on the silica/silica oxide ratio [36]. The determination of the latter ratio, which is deduced from the chemical and mineralogical composition of the raw material, is criticized.…”

Section: Molar Ratiosmentioning

confidence: 99%

Evaluation of Compressive and Bending Strength of a Geopolymer Based on Lateritic Clays as an Alternative Hydraulic Binder

Ochoa,

Málaga,

Tapia

et al. 2024

Materials

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In Bolivia, lateritic soils are common in humid tropical regions and can be used in the construction industry as an alternative to materials that cause a negative environmental impact, such as cement. The production of Portland cement causes environmental issues like significant greenhouse gas emissions and air pollution. To address this problem, geopolymers have been introduced as an alternative binder with low CO2 emissions. In this regard, geopolymers based on lateritic clays have been studied mineralogically, chemically, and on their compressive strength separately. However, there are still no studies on lateritic clays present in Bolivia and their mechanical, mineralogical, and chemical properties combined in a geopolymer. Therefore, this present research proposes the evaluation of a geopolymer made from laterite clays. Compression and flexural tests were carried out, along with mineralogical and chemical analyses on mortar and geopolymer cubes and prisms. The results indicate that the laterite clay-based geopolymer has lower compressive strength compared to Portland cement IP (cement type I with the addition of pozzolana) mortar. However, the flexural strength tests show a slight increase in the case of the geopolymer.

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“…At the optimum dosage of 1%, the UCC is 163, and its cohesion is half of that (81.5). The compressive strength increases on adding nano aluminium oxide, this improvement is due to the binding tendency of nano aluminium oxide towards soil and water [31].…”

Section: Unconfined Compressive Strengthmentioning

confidence: 99%

Experimental investigation on soil stabilization technique by adding nano-aluminium oxide additive in clay soil

Abisha

Jose

2023

Matéria (Rio J.)

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In this research article, soil stabilisation is carried out by the latest method: nanotechnology. The stabilizer nano-aluminum oxide is used as a stabilising agent in concentrations of 0.2%, 0.4%, 0.6%, 0.8%, 1%, and 1.2%. Because it is 99% pure and nanoscale, it has a large surface area for analysing the properties and strength of soil tests such as Atterberg's limit, pycnometer, proctor compaction test, California bearing ratio test, and unconfined compressive strength. These tests are done for parent soil and soil with different percentages of nanomaterials. The nanostabilizer addition increases the unconfined compressive strength, California bearing ratio, liquid limit, and optimum moisture content value. One percentage of nano-aluminium oxide is considered an optimum dosage. Beyond the optimum amount, there is a change in soil property. The CBR value, liquid limit, and OMC of soil all go down, so it is recommended to use 1% nano-aluminum oxide to improve sub-grade clay soil.

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Eco-friendly stabilization of highway lateritic soil with cow bone powder admixed lime and plastic granules reinforcement

Cited by 14 publications

References 27 publications

Assessment of the Microstructure and Geotechnical Characteristics of Lime- Improved Lateritic Soil with the Addition of Pulverised Snail Shell and Sawdust Ash for Sustainable Highway Infrastructure

Assessment of the Microstructure and Geotechnical Characteristics of Lime- Improved Lateritic Soil with the Addition of Pulverised Snail Shell and Sawdust Ash for Sustainable Highway Infrastructure

Evaluation of Compressive and Bending Strength of a Geopolymer Based on Lateritic Clays as an Alternative Hydraulic Binder

Experimental investigation on soil stabilization technique by adding nano-aluminium oxide additive in clay soil

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