Evaluation of As-Designed versus As-Built Long-Life Rigid Pavements in Michigan—A Case Study
Publication: Airfield and Highway Pavements 2023
ABSTRACT
Long-life pavements are generally designed and built to last 30−50 years without major structural rehabilitation and reconstruction. They achieve their design service life with periodic surface renewal due to surface distresses. Recently, two long-life concrete pavement pilot sections were constructed in Michigan. This paper evaluated the design and construction enhancements employed to achieve longer lives. The long-life pavements differ from standard ones mainly for construction materials, that is, having a cement-stabilized permeable base and stabilized subgrade. Laboratory-determined mechanical properties of the concrete used in both projects surpassed their target. The base layer MR values are higher and lower for the subbase layer than their assumed values at the design stage. The as-designed and as-built predicted pavement performance showed that either design alternative would achieve its intended design lives; long-life pavements had a slower rate of progression of IRI and joint faulting. The LCCA comparison revealed that the long-life design pavements are more cost-effective considering the estimated total cost (i.e., agency and user costs).
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Published online: Jun 13, 2023
ASCE Technical Topics:
- Base course
- Benefit cost ratios
- Business management
- Case studies
- Concrete pavements
- Construction engineering
- Construction management
- Construction materials
- Construction methods
- Design (by type)
- Engineering fundamentals
- Engineering materials (by type)
- Financial management
- Highway and road design
- Infrastructure
- Materials engineering
- Methodology (by type)
- Pavement design
- Pavements
- Practice and Profession
- Rehabilitation
- Research methods (by type)
- Sight distances
- Transportation engineering
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