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A platform for research: civil engineering, architecture and urbanism
An innovative ballasted track utilizing stabilized clayey subgrade
https://orcid.org/0000-0002-4099-3743
Abstract The traditional ballasted tracks have been used widely in railway transportation infrastructure. Construction of ballasted tracks on the clayey soft subgrade causes high settlement and low bearing capacity. Significant maintenance cost and time-consuming operation have been encountered due to presence of clay. Different methods of soil stabilization have been presented in literature. Using road construction experience with Royal Road Product (RRP235 Special), as an innovative method for the first time, the layers underneath the sleeper have been replaced with the clayey subgrade stabilized with RRP 235 special. A series of static and dynamic lab experiments such as Maximum Compaction test, California Bearing Ratio, Unconfined Compressive Strength, Brazilian Indirect Tensile test, Direct Shear Strength, and Uniaxial Cyclic tests were carried out. Samples with different dosages of additive were made, and an optimal percentage was found. As the result, the sample with 0.15 lit/m^3 RRP235 Special was determined as the suitable dosage in terms of mechanical and physicaltests, while only in the Maximum Compaction test, by increasing the additive, the optimum water content decreased.
An innovative ballasted track utilizing stabilized clayey subgrade
https://orcid.org/0000-0002-4099-3743
Abstract The traditional ballasted tracks have been used widely in railway transportation infrastructure. Construction of ballasted tracks on the clayey soft subgrade causes high settlement and low bearing capacity. Significant maintenance cost and time-consuming operation have been encountered due to presence of clay. Different methods of soil stabilization have been presented in literature. Using road construction experience with Royal Road Product (RRP235 Special), as an innovative method for the first time, the layers underneath the sleeper have been replaced with the clayey subgrade stabilized with RRP 235 special. A series of static and dynamic lab experiments such as Maximum Compaction test, California Bearing Ratio, Unconfined Compressive Strength, Brazilian Indirect Tensile test, Direct Shear Strength, and Uniaxial Cyclic tests were carried out. Samples with different dosages of additive were made, and an optimal percentage was found. As the result, the sample with 0.15 lit/m^3 RRP235 Special was determined as the suitable dosage in terms of mechanical and physicaltests, while only in the Maximum Compaction test, by increasing the additive, the optimum water content decreased.
An innovative ballasted track utilizing stabilized clayey subgrade
https://orcid.org/0000-0002-4099-3743
Abstract The traditional ballasted tracks have been used widely in railway transportation infrastructure. Construction of ballasted tracks on the clayey soft subgrade causes high settlement and low bearing capacity. Significant maintenance cost and time-consuming operation have been encountered due to presence of clay. Different methods of soil stabilization have been presented in literature. Using road construction experience with Royal Road Product (RRP235 Special), as an innovative method for the first time, the layers underneath the sleeper have been replaced with the clayey subgrade stabilized with RRP 235 special. A series of static and dynamic lab experiments such as Maximum Compaction test, California Bearing Ratio, Unconfined Compressive Strength, Brazilian Indirect Tensile test, Direct Shear Strength, and Uniaxial Cyclic tests were carried out. Samples with different dosages of additive were made, and an optimal percentage was found. As the result, the sample with 0.15 lit/m^3 RRP235 Special was determined as the suitable dosage in terms of mechanical and physicaltests, while only in the Maximum Compaction test, by increasing the additive, the optimum water content decreased.
An innovative ballasted track utilizing stabilized clayey subgrade
Ghorbani Dolama, Hossein (author) / Ali Zakeri, Jabbar (author) / Esmaeili, Morteza (author) / Hayati, Parham (author)
2022-09-11
Article (Journal)
Electronic Resource
English
An innovative ballasted track utilizing stabilized clayey subgrade
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