Productive Re-Use of Savannah River Dredge Material

Approximately 6 million m³ of river sediment is dredged from the Savannah River annually in order to keep the river navigable. While this material is currently being stored in facilities located riverside, the long-term viability of these facilities is in question due to changes in planned land use. As an alternative to storing or relocating these materials, investigations were made into the beneficial use of these materials in geotechnical or structural applications. The possible beneficial uses include: (1) Utilization as a structural/non-structural fill; (2) Fine aggregates source for concrete mixes; (3) Lightweight aggregate production for use in concrete mixes; (4) Production of supplementary cementitious materials; and (5) Ingredient in cement feedstock. This investigation was conducted by comparing these sediments to pre-existing ASTM standards, proof of concept production, or through a comprehensive literature review. It was found that this sediment could be utilized in each of these situations depending on its physical and chemical characteristics. Further economic and life cycle analyses were performed to weigh reuse options. Based on this analysis, from a technical standpoint, all of the sediment stored can be utilized in one of the investigated applications. Due to the broad scope of the current investigation, further study is needed in order to assess and improve the quality in some of these final products.

• Record URL:
  http://g92018.eos-intl.net/eLibSQL14_G92018_Documents/17-14.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/54606
• Corporate Authors:

  Georgia Institute of Technology, Atlanta

  School of Civil and Environmental Engineering
  Atlanta, GA  United States  30332

  Georgia Department of Transportation

  Office of Performance-based Management and Research
  600 West Peachtree St. NW
  Atlanta, GA  United States  30308

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kurtis, Kimberly E
  • 0000-0002-1252-7323
  • Burns, Susan E
  • 0000-0002-3029-7314
  • Benkeser, Daniel
  • Huang, Hejintao
• Publication Date: 2020-9

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 158p

Subject/Index Terms

• TRT Terms: Admixtures; Cement additives; Dredged materials; Fills; Life cycle analysis; Recycled materials; Sediments
• Geographic Terms: Savannah River
• Subject Areas: Environment; Geotechnology; Materials; Transportation (General);

Filing Info

• Accession Number: 01755265
• Record Type: Publication
• Report/Paper Numbers: FHWA-GA-20-1714, 17-14
• Contract Numbers: PI #0000185399
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Oct 23 2020 5:36PM