Abstract
The diminishing quantity of natural resources has resulted in a search for alternative materials. Reusing industrial by-products, such as steel slag, provides opportunities for sustainable highway construction practices due to the valuable space they occupy and the potential environmental impacts when they are stockpiled. In this paper, the mechanical suitability of steel slag as an unbound highway aggregate is investigated, and its performance is compared with that of traditional graded aggregate base (GAB) materials. In order to compare the behavior, three steel slag samples with different aging properties and five aggregate samples from different quarries were employed. The results indicate that resilient moduli and permanent. Deformation characteristics of steel slag are comparable with those of traditional aggregates and can replace when used as a base or subbase course.
| Original language | English |
|---|---|
| Pages (from-to) | 12-19 |
| Number of pages | 8 |
| Journal | Journal of Sustainable Construction Materials and Technologies |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 2023 |
Bibliographical note
Publisher Copyright:© 2023, Kare Publishing. All rights reserved.
Funding
The research reported in this paper was financially supported by the U.S. Department of Transportation National Transportation Center (NTC) and the Maryland State Highway Administration (SHA). Endorsement by NTC, SHA, or the steel slag supplier is not implied and should not be assumed.
| Funders | Funder number |
|---|---|
| Maryland State Highway Administration | |
| U.S. Department of Transportation National Transportation Center | |
| National Transportation Center, Morgan State University | |
| Saudi Heart Association |
Keywords
- Steel slag; sustainability
- permanent deformation
- resilient modulus
