Steel Slag Aggregate Characteristics Evaluation as Railway Ballast

Guoqing Jing, Peyman Aela, Qiang Zhou, Wenli Jia

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

The use of recycled materials is a new tendency in the field of railway engineering. Steel slag aggregates (SSA) are one of the recycled materials derived from the steel industry. The application of SSA in ballasted railway tracks requires mechanical examination. In the present paper, the shear behavior of the ballast layer constructed by SSA and basalt aggregates was considered to assess the use of SSA as a substitution for basalt. In this regard, a series of large-direct shear tests were performed on basalt and SSA under various normal stresses. Based on the results, basalt aggregates have higher shear resistance than SSA for all normal stress. However, steel slag has sufficient shear strength as well as particle abrasion resistance. Overall, it was proven that the SSA has suitable stability against shear forces that could be applied on railway ballast.

Original languageEnglish
Title of host publicationAdvances in Transportation Geotechnics IV - Proceedings of the 4th International Conference on Transportation Geotechnics
EditorsErol Tutumluer, Soheil Nazarian, Imad Al-Qadi, Issam I. A. Qamhia
PublisherSpringer Science and Business Media Deutschland GmbH
Pages449-460
Number of pages12
ISBN (Print)9783030772338
DOIs
Publication statusPublished - 2022
Event4th International Conference on Transportation Geotechnics, ICTG 2021 - Chicago, United States
Duration: 23 May 202126 May 2021

Publication series

NameLecture Notes in Civil Engineering
Volume165
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference4th International Conference on Transportation Geotechnics, ICTG 2021
CountryUnited States
CityChicago
Period23/05/2126/05/21

Bibliographical note

Accepted Author Manuscript

Keywords

  • Basalt
  • LA abrasion
  • Large-direct shear test
  • Shear resistance
  • SSA

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