1. 2018 Pavement Workshop May 23-24, 2018
Preventative Maintenance Team
Short Term Research Projects
Joe Korzilius
Senior Associate
SRF Consulting Group, Inc
+ 46 Associate Members

2. Surface characteristics of diamond ground PCC Surfaces
Tech Transfer #1A
Surface characteristics of diamond ground PCC Surfaces

3. Project Objective Project Goal
Determine the change in surface characteristics of diamond ground textures for both new and existing pavements.
Review the process and produced surface characteristics of various diamond ground textures for both new and existing pavements; Ride, Noise, Friction, .…. ?
Project Goal
To explore the state of practice of diamond grinding PCC surfaces and the benefits
Some questions to explore:
At what point is diamond grinding best applied or required
Is there a particular depth that is required in order to obtain a certain level of benefit
What kind of improvements in ride, noise and friction are being obtained
Does diamond grinding expose the aggregates to early polishing and environmental effects that accelerate materials related distresses (D-cracking and ASR)

4. Project Tasks Develop Before and After Texture Performance
Identify Textures for Evaluation
Develop Before and After Texture Performance
Curves
Investigate the use of Grinding in Other States
Prepare a Synthesis / White Paper

5. Potential Benefits Provide guidance on diamond grinding
Why to use
When to use for best performance
Where grinding is not recommended
Material factors
Geometric considerations such as drainage within urban sections
Expectations for Pavement Management Systems:
performance curves
Cost Effectiveness

6. Pavement preservation approaches for lightly surfaced roadways
Tech Transfer #1B
Pavement preservation approaches for lightly surfaced roadways

7. Project Objective Project Goal
To determine options for local agencies to preserve roads that meet the unique requirements of low volume roadways
Project Goal
Address roadways surfaced with aggregates, thin PCC, stabilized RAP, including both engineered emulsion and formed asphalt
What is the desired direction ?
What about complimentary studies on going ?

8. A lightly Surfaced Road:
A lightly Surfaced Road: Application of a surface treatment, light asphalt emulsion, to a Gravel Road.
Application to a gravel Road
Chip Seal
Otto Seal
Benefits:
Keep dust down and the stability provided by the fine material
Sealing or at least reducing intrusion of water
Reducing loss of gravel
surface erosion washboarding
Washouts maintenance

9. Questions?
Joe Korzilius

10. Thank You