Evaluation Of Waste Concrete Road Materials For Use In Oyster Aquaculture – Field Test

The overall objective of this study was to determine the suitability of recycled concrete aggregate (RCA) from road projects as bottom conditioning material for on-bottom oyster aquaculture in the Chesapeake Bay. During this Phase of the study, the research team placed RCA on test plots in the Chesapeake Bay to evaluate the impact on the benthic community. Miniature oyster reefs were also built to determine potential impacts or disruptions of RCA on the use of traditional harvesting gear. The results of this project showed that (1) There was no significant difference between substrate type (RCA, oyster shell) on benthic community structure, oyster recruitment, and the abundance and size distribution of key faunal species, demonstrating that RCA, as an alternative material, was generally similar to natural oyster shell with regard to ecosystem services provided, and (2) RCA makes a suitable substrate for supporting oysters for aquaculture operations but would require a veneer of old shell to be placed on top so as not to introduce additional weight to the catch when using shaft tongs.

• Record URL:
  http://www.roads.maryland.gov/OPR_Research/MD-15-SHA-MSU-3-12_Waste-Concrete-for-Oyster-Aquaculture-Phase-II_Report.pdf
• 
• Summary URL:
  http://www.roads.maryland.gov/OPR_Research/MD-15-SHA-MSU-3-12_Waste-Concrete-for-Oyster-Aquaculture-Phase-II_Summary.pdf
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/28641
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/28642
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program. Cover title: Phase II Evaluation of Waste Concrete Road Materials for Use in Oyster Aquaculture – Field Test
• Corporate Authors:

  Morgan State University

  Patuxent Environmental & Aquatic Research Laboratory
  10545 Mackall Road
  Saint Leonard, MD  United States  20685

  Maryland State Highway Administration

  Office of Policy and Research, 707 North Calvert Street
  Baltimore, MD  United States  21202

  National Transportation Center

  Morgan State University, 1700 E Cold Spring Lane
  Baltimore, MD  United States  21251

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Fan, Chunlei
  • Clark, Kelton L
• Publication Date: 2015-2

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 39p

Subject/Index Terms

• TRT Terms: Aquatic life; Environmental impacts; Evaluation; Field tests; Recycled materials; Substrates (Waterways)
• Geographic Terms: Chesapeake Bay
• Subject Areas: Environment; Highways; Materials; I15: Environment; I30: Materials;

Filing Info

• Accession Number: 01556735
• Record Type: Publication
• Report/Paper Numbers: MD-15-SHA-MSU-3-12
• Contract Numbers: SP309B4J
• Files: UTC, NTL, TRIS, RITA, ATRI, USDOT, STATEDOT
• Created Date: Mar 12 2015 7:53AM