Best management policies for CGR

The residue generated during sawing and diamond grinding operations is known as sawing slurry or concrete grinding residue (CGR). Often the contractor and engineer for concrete road repairs is required to develop a plan to manage the CGR. Because slurry was removed from Minnesota's list of regulated solid wastes in 2012, contractors were free to dispose of the material on-site - provided they followed state-sanctioned procedures. This exemption was based partly on the International Grooving & Grinding Association's (IGAA) updated Slurry Best Management Practices guide, which is summarized in this article. Topics covered in this article are slurry spreading disposal; slurry collection and pond decanting; slurry collection and plant processing; and pH control plan. The article finishes with a case study of the Minnesota Department of Transportation (MNDOT)'s experience with slurry disposal procedures.

• Record URL:
  • http://www.pwmag.com/paving/best-management-policies-for-cgr.aspx
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Authors:
  • Moosmann, Kari
• Publication Date: 2013-11

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos;
• Pagination: pp 38-40, 42-43
• Serial:
  • Public Works
  • Volume: 144
  • Issue Number: 12
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Best practices; Case studies; Diamond grinding; Guidelines; Paving; Sawing; Slurry; Solid waste disposal
• Identifier Terms: International Grooving & Grinding Association (IGGA)
• Uncontrolled Terms: Slurry disposal
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements; I32: Concrete; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01502286
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 23 2013 11:06AM