Stabilization of a highly expansive soil using waste-tire-derived aggregates and lime treatment

Soltani, Amin; Taheri, Abbas; Deng, An; O’Kelly, Brendan C.

doi:10.1016/j.cscm.2022.e01133

Cited by 15 publications

(1 citation statement)

References 46 publications

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“…Examples include tire chips, crumb rubber, and rubber-soil Improved soil strength, reduced compaction, erosion, noise, and vibration, and enhanced frost resistance, as well as swelling potential reduction through the use of appropriate additives and geotechnical seismic isolation (GSI) [86][87][88].…”

Section: Rubbermentioning

confidence: 99%

Key Success Factors for the Practical Application of New Geomaterials

Alelvan,

Santos,

Pierozan

et al. 2023

Sustainability

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Geomaterials comprise naturally formed materials through geological processes, such as soils and rocks, or artificially processed materials, including mineral waste and geosynthetics. These materials find extensive use in geotechnical structures, such as slopes, dams, and pavements, among others. However, two issues commonly arise in earthworks: the materials available in the region do not meet the minimum engineering requirements, resulting in high transportation costs, and the exploitation of new deposits increases environmental impacts. Consequently, there is a need to develop stabilization and reinforcement techniques aimed at creating new geomaterials (NGs) to expand the range of local material applications. In this context, the present study evaluates the key success factors (KSFs) related to the application of NGs in geotechnical structures. The Delphi method was employed through a structured questionnaire developed after an extensive literature review. Brazilian experts from the public, private, and academic sectors were selected to identify the obstacles and potential pathways for the practical application of NGs. The outcomes of the study indicated that the lack of standardization, the complex behavior of geomaterials under varying conditions, as well as technical and economic limitations serve as barriers impeding the widespread adoption of NGs. Finally, a roadmap proposal was devised, encompassing a series of actions intended to facilitate the broader utilization of NGs.

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Section: Rubbermentioning

confidence: 99%

Key Success Factors for the Practical Application of New Geomaterials

Alelvan,

Santos,

Pierozan

et al. 2023

Sustainability

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Strength assessment of sand stabilized with synthetic polymer and natural fibers

Wang,

Liu,

Chen

et al. 2024

Bull Eng Geol Environ

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Static and cyclic performance of polyurethane foam adhesive bound soil–rubber mixtures under drained conditions

Farooq

Nimbalkar

2023

Acta Geotech.

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The major drawbacks of a railway track include noise, vibration, and aggravated track degradation. Resilient mats and asphalt have been increasingly used in recent years to mitigate this noise and vibration. However, these materials are quite expensive. Conventional asphalt is very stiff and brittle, making it more prone to cracking. The present work aims to develop a novel material that can be used as a base layer in ballasted and slab tracks. The current research proposes a sustainable and resilient base course layer comprising ground rubber (GR) and polyurethane foam adhesive (PFA). In this study, the performance of GR embedded in the sand is investigated. The use of PFA-treated sand with and without GR is then explored. The optimum dosage of PFA for soil and GR for treated and untreated soil is recommended based on static direct simple shear (SDSS) and cyclic direct simple shear (CDSS) tests. SDSS tests were performed to evaluate the monotonic performance of all mixtures. CDSS tests were performed to assess the long-term performance of these different mixes under repeated cyclic loading (50,000 load cycles) and varying cyclic shear stress amplitude. It is shown that PFA helps reduce the settlement and enhance soil shear strength, while GR increases the damping ratio of the soil. The optimum dosage of PFA is recommended 10%. The optimum GR content for untreated and PFA-treated soil is recommended 5 and 10%, respectively.

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Stabilization of a highly expansive soil using waste-tire-derived aggregates and lime treatment

Cited by 15 publications

References 46 publications

Key Success Factors for the Practical Application of New Geomaterials

Key Success Factors for the Practical Application of New Geomaterials

Strength assessment of sand stabilized with synthetic polymer and natural fibers

Static and cyclic performance of polyurethane foam adhesive bound soil–rubber mixtures under drained conditions

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