The alternatives to traditional materials for subsoil stabilization and embankments
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Major infrastructure projects require significant amount of natural materials, often followed by the soft soil stabilization using hydraulic binders. This paper presents the results of a laboratory study of alternative waste materials (fly ash and slag) that can be used for earthworks. Results of high plasticity clay stabilization using fly ash from Serbian power plants are presented in the first part. In the second part of the paper, engineering properties of ash and ash-slag mixtures are discussed with the emphasis on the application in road subgrade and embankment construction. Physical and mechanical properties were determined via following laboratory tests: Specific gravity, grain size distribution, the moisture–density relationship (Proctor compaction test), unconfined compressive strength (UCS), oedometer and swell tests, direct shear and the California bearing ratio (CBR). The results indicate the positive effects of the clay stabilization using fly ash, in terms of increasing ...strength and stiffness and reducing expansivity. Fly ashes and ash-slag mixtures have also comparable mechanical properties with sands, which in combination with multiple other benefits (lower energy consumption and CO2 emission, saving of natural materials and smaller waste landfill areas), make them suitable fill materials for embankments, especially considering the necessity for sustainable development.
Keywords:
fly ash / slag / soil stabilization / cement / lime / embankmentSource:
Materials, 2019, 12, 18, 3018-Publisher:
- MDPI
Funding / projects:
DOI: 10.3390/ma12183018
ISSN: 1996-1944
WoS: 000489126600177
Scopus: 2-s2.0-85072569660
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GraFarTY - JOUR AU - Vukićević, Mirjana AU - Marjanović, Miloš AU - Pujević, Veljko AU - Jocković, Sanja PY - 2019 UR - https://grafar.grf.bg.ac.rs/handle/123456789/1763 AB - Major infrastructure projects require significant amount of natural materials, often followed by the soft soil stabilization using hydraulic binders. This paper presents the results of a laboratory study of alternative waste materials (fly ash and slag) that can be used for earthworks. Results of high plasticity clay stabilization using fly ash from Serbian power plants are presented in the first part. In the second part of the paper, engineering properties of ash and ash-slag mixtures are discussed with the emphasis on the application in road subgrade and embankment construction. Physical and mechanical properties were determined via following laboratory tests: Specific gravity, grain size distribution, the moisture–density relationship (Proctor compaction test), unconfined compressive strength (UCS), oedometer and swell tests, direct shear and the California bearing ratio (CBR). The results indicate the positive effects of the clay stabilization using fly ash, in terms of increasing strength and stiffness and reducing expansivity. Fly ashes and ash-slag mixtures have also comparable mechanical properties with sands, which in combination with multiple other benefits (lower energy consumption and CO2 emission, saving of natural materials and smaller waste landfill areas), make them suitable fill materials for embankments, especially considering the necessity for sustainable development. PB - MDPI T2 - Materials T1 - The alternatives to traditional materials for subsoil stabilization and embankments IS - 18 SP - 3018 VL - 12 DO - 10.3390/ma12183018 ER -
@article{ author = "Vukićević, Mirjana and Marjanović, Miloš and Pujević, Veljko and Jocković, Sanja", year = "2019", abstract = "Major infrastructure projects require significant amount of natural materials, often followed by the soft soil stabilization using hydraulic binders. This paper presents the results of a laboratory study of alternative waste materials (fly ash and slag) that can be used for earthworks. Results of high plasticity clay stabilization using fly ash from Serbian power plants are presented in the first part. In the second part of the paper, engineering properties of ash and ash-slag mixtures are discussed with the emphasis on the application in road subgrade and embankment construction. Physical and mechanical properties were determined via following laboratory tests: Specific gravity, grain size distribution, the moisture–density relationship (Proctor compaction test), unconfined compressive strength (UCS), oedometer and swell tests, direct shear and the California bearing ratio (CBR). The results indicate the positive effects of the clay stabilization using fly ash, in terms of increasing strength and stiffness and reducing expansivity. Fly ashes and ash-slag mixtures have also comparable mechanical properties with sands, which in combination with multiple other benefits (lower energy consumption and CO2 emission, saving of natural materials and smaller waste landfill areas), make them suitable fill materials for embankments, especially considering the necessity for sustainable development.", publisher = "MDPI", journal = "Materials", title = "The alternatives to traditional materials for subsoil stabilization and embankments", number = "18", pages = "3018", volume = "12", doi = "10.3390/ma12183018" }
Vukićević, M., Marjanović, M., Pujević, V.,& Jocković, S.. (2019). The alternatives to traditional materials for subsoil stabilization and embankments. in Materials MDPI., 12(18), 3018. https://doi.org/10.3390/ma12183018
Vukićević M, Marjanović M, Pujević V, Jocković S. The alternatives to traditional materials for subsoil stabilization and embankments. in Materials. 2019;12(18):3018. doi:10.3390/ma12183018 .
Vukićević, Mirjana, Marjanović, Miloš, Pujević, Veljko, Jocković, Sanja, "The alternatives to traditional materials for subsoil stabilization and embankments" in Materials, 12, no. 18 (2019):3018, https://doi.org/10.3390/ma12183018 . .