Concrete debris assessment for road construction activities : final report.

Details

• Creators:
  Townsend, Timothy ; Chadik, Paul ; Gupta, Nautasha ; Kluge, Matthew ; Vinson, Tim ; Schert, John
• Corporate Creators:
  University of Florida
• Corporate Contributors:
  Florida. Department of Transportation
• Subject/TRT Terms:
  • Base course (Pavements)
  • Concrete aggregates
  • Environmental impacts
  • Laboratory tests
  • Leachate
  • Literature reviews
  • Recycled materials
  • Railroad construction
  • Waste products (Materials)
  • Recycled Concrete Aggregate
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Florida
• Edition:
  Final report
• Corporate Publisher:
  Florida Department of Transportation
• Abstract:
  Two distinct but related issues of importance to FDOT were investigated: (1) the possible impact of ; recycled concrete aggregate (RCA) used as road base on the subsurface environment and (2) the ; management of concrete grinding residuals (CGR) resulting from grooving and grinding operations for ; Portland cement concrete pavements. Results from the literature and from testing on Florida-specific ; RCA indicate that the leachate produced by the contact of water with RCA is elevated in pH. Several ; factors were demonstrated to reduce leachate pH in the environment, but the extent to which this ; reduction will occur depends on environmental conditions that require additional testing to evaluate. ; CGR produced from concrete grinding operations is not hazardous waste, but is elevated in pH and ; requires appropriate management. Best management practices should be implemented for CGR, and ; examples of such practices are available. Management of CGR with concrete truck washout is a viable ; option. If CGR is discharged adjacent to roadways, care must be taken to avoid impact on ecosystems.
  More +
• Format:
  PDF
• Funding:
  BDV31-977-48
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31129/dot_31129_DS1.pdf
• File Type:
  [PDF - 2.66 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e62e702eb918f91f920464718acccab0eb090ea714077afae947a6cbf170fc3a