Diamond Grinding Slurry Best Practices

Management Practices

The International Grooving & Grinding Association (IGGA) is a non-profit Trade Association founded in 1972 by a group of dedicated industry professionals committed to the development of the diamond grinding and grooving process for surfaces con structed with Portland cement concrete and asphalt. In 1995, the IGGA joined in affiliation with the American Concrete Pavement Association (ACPA) to represent its newly formed Concrete Pavement Restoration Division. The IGGA / ACPA CPR Division now serves as the technical resource and industry representative in the marketing of optimized pavement surfaces, concrete pavement restoration and pavement preservation around the world. The mission of the IGGA is to serve as the leading promotional and technical resource for acceptance and proper use of diamond grinding and grooving as well as PCC preservation and restoration. For more information, visit www.igga.net


Diamond Grinding Slurry

Diamond grinding slurry is an inert, nonhazardous byproduct of the diamond grinding process utilized on pavement to restore ride quality, increase skid resistance and reduce noise. The slurry is a combination of water used to cool the grinding blades and the thin layer of concrete that is being removed. Numerous tests have been conducted that verify the material is nonhazardous (Holms & Naver 1997, IGGA May 1990, CSS Environmental Services September 2006, Concrete Pavement Rehabilitation – Guide for Diamond Grinding, FHWA June 2001).

Best Management Practices

The following Best Management Practices (BMP) are the result of the International Grooving and Grinding Association’s intent for slurry byproduct to continue to be handled in a professional,
environmentally responsible fashion.

Slurry Spreading Disposal

Slurry Collection and Pond Decanting

Success of the Plan

As with any plan, the only way to make these best practices a success is through continuous, open communication. The contractor and engineer shall review the separate aspects of this plan to determine which sections apply to their role in the project. These parties should discuss the applicable sections and jointly determine how to apply the best practices, as well as review the application of practices in the field. The contractor and engineer should sign off on the jointly developed plan to facilitate full compliance with each of the plan elements.

Slurry Collection and Plant Processing

PH Control Plan