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| Title: | Effects of parallel gradation on strength properties of ballast materials |
| Author (s): | Cambio, Domenica Ge, Yu-Ning (Louis) |
| Department/Lab Affiliations: | Civil, Architectural & Environmental Engineering University Transportation Center |
| Keywords: | ballast material properties |
| Subject Terms: | Embankments. Railroad tracks. |
| Issue Date: | 2007 |
| Publisher: | American Society of Civil Engineers |
| Citation: | Cambio, Domenica., and Ge, Yu-Ning (Louis). "Effects of Parallel Gradation on Strength Properties of Ballast Materials", Geo-Denver 2007: New Peaks in Geotechnics, 2007. |
| Abstract: | The railroad ballast is used to fill in irregular surface topology, distribute and transfer loads from a surface structure or system to the subgrade or subsoils as uniformly and widely as possible in order to provide stable and stiff long-term embankment support for railways. A typical ballast grain sizes range from 30 to 70 mm, which makes large-scale laboratory tests difficult to conduct. The parallel gradation technique is to preserve the particle shape, particle surface roughness, and particle mineralogy, and creates a parallel gradation of soil with a maximum particle size for the available apparatus. This paper presents the result of a series of monotonic direct shear tests for three ballast materials having parallel gradation curves, which are served as background study for the ongoing research on validating it under loading-unloading condition. |
| Type: | Article - Conference proceedings text |
| In Title: | Geo-Denver 2007: New Peaks in Geotechnics |
| Copyright Notice: | Pre-print: archiving status unclear; Post-print: author can archive with restrictions;Restriction: 90 days after publication; Conditions: Publisher's version/PDF cannot be used;Internet site or institutional repository;Must link to publisher version at ASCE Civil Engineering Database(http://cedb.asce.org);Publisher copyright and source must be acknowledged; This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. FULL COPYRIGHT INFORMATION: |
| Publisher URL: | |
| Link to this page: |
| title | Effects of parallel gradation on strength properties of ballast materials |
| contributor.author | Cambio, Domenica |
| contributor.author | Ge, Yu-Ning (Louis) |
| contributor.deptlab | Civil, Architectural & Environmental Engineering |
| contributor.deptlab | University Transportation Center |
| subject | ballast |
| subject | material properties |
| subject.LCSH | Embankments. |
| subject.LCSH | Railroad tracks. |
| date.issued | 2007 |
| publisher | American Society of Civil Engineers |
| identifier.citation | Cambio, Domenica., and Ge, Yu-Ning (Louis). "Effects of Parallel Gradation on Strength Properties of Ballast Materials", Geo-Denver 2007: New Peaks in Geotechnics, 2007. |
| identifier.pub.URI | |
| description.abstract | The railroad ballast is used to fill in irregular surface topology, distribute and transfer loads from a surface structure or system to the subgrade or subsoils as uniformly and widely as possible in order to provide stable and stiff long-term embankment support for railways. A typical ballast grain sizes range from 30 to 70 mm, which makes large-scale laboratory tests difficult to conduct. The parallel gradation technique is to preserve the particle shape, particle surface roughness, and particle mineralogy, and creates a parallel gradation of soil with a maximum particle size for the available apparatus. This paper presents the result of a series of monotonic direct shear tests for three ballast materials having parallel gradation curves, which are served as background study for the ongoing research on validating it under loading-unloading condition. |
| type | Article - Conference proceedings |
| type.DCMIType | text |
| rights | Pre-print: archiving status unclear; Post-print: author can archive with restrictions;Restriction: 90 days after publication; Conditions: Publisher's version/PDF cannot be used;Internet site or institutional repository;Must link to publisher version at ASCE Civil Engineering Database(http://cedb.asce.org);Publisher copyright and source must be acknowledged; |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights.URI | |
| relation.isPartOf | Geo-Denver 2007: New Peaks in Geotechnics |
| date.available | 2008-06-24T18:09:07Z |
| identifier.persist.URI |