INSTRUCTOR: David K. Hein, P.Eng.

Course Length:  1 hour

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Purpose and Background

This webinar illustrates the impact of design, construction and maintenance features on the long-term performance of flexible and rigid pavements. The primary design, specification, and construction factors that contribute to the long-term functional and structural performance of pavements ranging from parking lots to municipal roadways, airports and major highways are discussed. Through a series of case studies, this webinar presents positive and negative features to give the participant a good understanding of what we can do better to ensure the cost-effective use of transportation investments.

Primary Topics of Discussion

• Design impact
• Construction and maintenance features
• Design, specification, and construction factors that contribute to key pavement performances

Learning Outcomes

• Recognize and use current common pavement design procedures
• Determine common design and construction features important to the performance of both asphalt and concrete pavements
• Design and recognize specification and construction activities that can improve the performance of pavements
• Communicate and promote good road design and construction practices

Webinar Benefits

• Understand key components and factors necessary for the cost-effective design of flexible and rigid pavements
• Be able to identify design and construction features that may negatively impact the performance of pavements
• Understand the consequences of poor design, construction, and maintenance practices
• Look for and understand the impact of design and construction decisions on the long-term performance of pavements
• Assist in developing specifications to ensure the performance of pavements
• Identify methods to improve the sustainability and longevity of pavements

Assessment of Learning Outcomes

Students' achievement of the learning outcomes will be assessed via a short post-assessment (true-false, multiple choice and fill in the blank questions).

Intended Audience

• Engineers involved in the design, evaluation, and management of pavements
• Private sector owners of parking lot and roadway pavements
• Roadway agencies
• Pavement maintenance staff
• Construction personnel

Webinar Outline

• Design and construction features that may impact the performance of our asphalt and concrete pavement infrastructure
• Key design elements for concrete pavement design and construction include:
• Subgrade preparation
• Dowel bar alignment
• Dowel and tie bar placement
• Dowel bar insertion
• Dowel bar quality
• Joint detailing
• Proper detailing around utility covers
• Finishing
• Joint and crack sealing
• Deleterious materials in the concrete mix
• General construction site cleanliness
• Key design elements for asphalt pavement design and construction include
• Subgrade preparation
• Thickness
• Instability
• Cracking
• Segregation
• Asphalt stripping
• Mix problems
• Drainage
• Maintenance procedures