Iowa Concrete Pavement Preservation Workshop
March 20–21, 2008, Ames, Iowa
A workshop for DOT Engineers, City Engineers & Managers, County Engineers & Managers, Consulting Engineers, and Contractors.
|1. Introduction (pdf)||2. Pavement Preservation Concepts (pdf)|
|3. Concrete Pavement Evaluation (pdf)||4. Slab Stabilization (pdf)|
|5. Partial-Depth Repairs (pdf)||6. Full-Depth Repairs (pdf)|
|7. Retrofitted Edge Drains (pdf)||8. Load Transfer Restoration (pdf)|
|9. Diamond Grinding and Grooving (pdf)||10. Joint Resealing(pdf)|
|11. Strategy Selection (pdf)|
Day 1March 20, 2008
8:00–8:30 Course Introduction
Dale Harrington will introduce the reference manual and course materials. The course has been prepared to provide guidance on the design, construction, and selection of concrete pavement preservation treatments.
8:30–9:15 Pavement Preservation Concepts
Gordon Smith will present an overview of preventive maintenance and pavement preservation. He will describe the characteristics of suitable pavements for preventive maintenance and the importance of selecting the “right” treatment and placing it at the “right” time. He will also discuss the benefits of pavement preservation.
9:15–10:30 Concrete Pavement Evaluation I
Kurt Smith will present a summary of the pavement evaluation process, including a description of the various pavement evaluation activities that are commonly conducted. The participants will receive an understanding of the need for a thorough pavement evaluation and the uses of pavement evaluation data. The common pavement evaluation components and what information is obtained from each will be presented. How to interpret pavement evaluation data will be discussed.
10:45–11:45 Concrete Pavement Evaluation II
Continued from above.
12:45–1:30 Slab Stabilization
Paul Wiegand will describe the use of two different pavement preservation treatments—slab stabilization and slab jacking. Slab stabilization is performed to restore support beneath concrete slabs. Slab jacking is conducted to physically lift a depressed slab back to the elevation of adjacent slabs.
1:30–2:15 Partial-Depth Repairs
Kurt Smith will describe recommended procedures for the partial-depth repair of concrete pavement. He will present the benefits and appropriateness of using partial-dept repairs, list the advantages and disadvantages of different repair materials, describe recommended construction procedures, list key quality control activities, and identify typical construction problems and appropriate remedies.
2:30–3:45 Full-Depth Repairs
Gordon Smith will present procedures for cast-in-place full-depth repair of existing concrete pavements. The techniques for both jointed plain or jointed reinforced concrete pavements and continuously reinforced concrete pavements will be discussed.
3:45–4:30 Retrofitted Edge Drains
Dale Harrington will discuss the installation of retrofitted edge drains to improve the drainage of existing concrete pavements. Benefits of positive pavement drainage, components of edge drain systems, recommended installation procedures, key quality control activities, and identifying typical construction problems and remedies will be presented.
Day 2March 21, 2008
8:00–8:45 Load Transfer Restoration
Dale Harrington will present information on load transfer restoration of joints and cracks in concrete pavements. Benefits and applications of load transfer restoration, recommended materials and mixtures, recommended construction procedures, key quality control activities, and typical construction problems and remedies will be discussed.
8:45–9:30 Diamond Grinding and Grooving
Paul Wiegand will describe the recommended procedures for surface restoration of concrete pavements. Differences between diamond grinding and diamond grooving, identifying appropriate blade spacing dimensions for grinding and grooving, recommended construction procedures, key quality control activities, and identifying typical construction problems and remedies will be discussed.
9:45–10:45 Joint Resealing
Paul Wiegand will describe the recommended procedures for both joint resealing and crack sealing operations on concrete pavements. Benefits of joint resealing and crack sealing, desirable sealant properties and characteristics, recommended installation procedures, key quality control activities, and typical construction problems and appropriate remedies will be discussed.
10:45–11:45 Strategy Selection
Kurt Smith will discuss in detail a variety of concrete pavement preservation and restoration techniques. These will range from relatively simple treatments to more involved techniques.
11:45–12:00 Wrap-Up and Closing Comments
- Dale Harrington is a senior project engineer with Snyder & Associates, Inc., and former director of the PCC Center and SUDAS.
- Gordon Smith is president of the Iowa Concrete Paving Association.
- Kurt Smith is a program director at Applied Pavement Technology, Inc.
- Paul Wiegand is a research engineer for the National Concrete Pavement Technology Center.