
The IGGA offers technical information on pavement surfacing techniques and preservation/repair methods. Select the application(s), preservation/optimization technique(s) or pavement criteria/issue(s) to browse the technical documents, or use the search function.
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Diamond Grinding Saves Money and Prolongs Asphalt Pavement Life
This downloadable infographic details the benefits of diamond grinding asphalt pavement. Diamond grinding is a cost-saving alternative for structurally sound asphalt pavements that are rutted, oxidized, cracked or flushed. Diamond grinding improves smoothness, removes moderate top down cracking, increases macrotexture, improves safety and more, costing less than most thin overlay treatments.
Application(s)
City/Municipal, Highway
Technique(s)
Diamond Grinding
Issue(s)
Friction/Safety, Smoothness, Structural/Material Issues, Sustainability/Environmental, Tire/Pavement Noise
Diamond Grinding Slurry Handling
This study outlines guidelines for slurry deposition, emphasizing environmental compliance. In rural areas, slurry can be placed on vegetated slopes, avoiding sensitive zones, while urban areas require collection in water-tight haul units transported to settlement ponds. These ponds facilitate the separation of slurry into reusable water and solids, with the processed water used for dust control or allowed to evaporate.
Application(s)
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Technique(s)
Slurry Disposal/Recycling
Issue(s)
Sustainability/Environmental
Diamond Grinding to Reduce Tire-Pavement Noise in Concrete Pavements
This brief explores the benefits of diamond grinding in lowering tire-pavement noise, traditionally viewed as a method to restore pavement smoothness and friction. By creating grooves and lands through controlled abrasion, diamond grinding enhances water drainage and ensures safer driving conditions. Additionally, the technique has proven effective as a final surface texture for newly paved roads, producing more consistent, smoother and quieter surfaces than conventional methods.
Application(s)
Bridge, City/Municipal, Highway
Technique(s)
Diamond Grinding
Issue(s)
Friction/Safety, Smoothness, Tire/Pavement Noise
Diamond Grinding: A Safe, Sustainable, Quiet and Cost-Effective Solution to Better Roadways
This white paper presents several case studies demonstrating the benefits of diamond grinding for maintaining and improving roadway conditions in Arkansas, California, Kentucky, and Phoenix. The importance of managing slurry/concrete grinding residue (CGR) for environmental compliance is also emphasized throughout the various case studies.
Application(s)
City/Municipal, Highway, Bridge, Airport/Airfield
Technique(s)
Diamond Grinding, Next Generation Concrete Surface (NGCS)
Issue(s)
Smoothness, Friction/Safety, Tire/Pavement Noise, Hydroplaning
Does Diamond Grinding Affect the Structural Capacity and Service Life of Concrete Pavements?
investigates the impact of diamond grinding on pavement performance is investigated in this study which concludes that diamond grinding does not decrease the structural capacity of concrete pavements. The study finds that the reduction in slab thickness due to diamond grinding is offset by the increase in concrete strength over time and notes that diamond grinding is often used in conjunction with other pavement restoration techniques such as dowel bar retrofit (DBR) and full-depth joint repairs, further increasing the performance and service life of concrete pavements.
Application(s)
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Technique(s)
Diamond Grinding
Issue(s)
Structural/Material Issues
MoDOT Tech Brief: Dowel Bar Retrofit
This brief summarizes the use of dowel bar retrofit (DBR) technology to improve load transfer efficiency (LTE) in existing concrete pavements. It highlights Washington State's extensive experience with DBR, which has shown to increase LTE, significantly preventing future joint and crack faulting after diamond grinding. Washington's DBR projects have successfully extended pavement life by up to 22 years, showcasing DBR's effectiveness as a long-term pavement preservation technique.
Application(s)
Highway
Technique(s)
Dowel Bar Retrofit
Issue(s)
Structural/Material Issues

