Sustainable Pavements. Gina Ahlstrom Senior Pavement Engineer Office of Asset Management, Pavements, and Construction
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1 Sustainable Pavements Gina Ahlstrom Senior Pavement Engineer Office of Asset Management, Pavements, and Construction National Concrete Consortium Jacksonville, FL April 22, 2014
2 2 FHWA Sustainable Pavements Program Goals: Support the US DOT goals for sustainable transportation Increase the body of knowledge regarding sustainability aspects of asphalt and concrete materials in pavement design, construction, and maintenance. Increase the use of sustainable technologies and practices in pavement design, construction, and maintenance.
3 3 Current Program Framework 1. Establishment of a Sustainable Pavements Technical Working Group (TWG) 2. Development of Reference Documents on Sustainable Pavements and Materials 3. Evaluation and Assessment of Existing Tools 4. Evaluation and Assessment of Sustainable Techniques 5. Technology Transfer and Deployment
4 4 Development of Reference Documents Develop guidelines for the design, construction, preservation, and maintenance of sustainable pavements utilizing asphalt and concrete materials. Educate practitioners on what sustainability means for pavements and materials. Encourage practitioners to adopt sustainable practices.
5 5 Towards Sustainable Pavement Systems: A Reference Document 1. Introduction 2. Concepts of Pavement Sustainability 3. Sustainable Materials for Paving 4. Design of Sustainable Pavements 5. Construction of Sustainable Pavements 6. Use Phase Considerations 7. Maintenance / Preservation / Rehabilitation Practices 8. End of Life for Sustainable Pavements 9. Sustainable Pavements in Liveable Communities 10. Assessing Pavement Sustainability 11. Concluding Remarks
6 6 1. Introduction What is Sustainability? Sustainability and Pavement Engineering
7 7 2. Concepts of Sustainability Defining Sustainability The Role of Pavements in Sustainability Pavement Life Cycle Measuring Sustainability 3. Sustainable Materials for Paving Aggregates Asphalt Materials and Mixtures Hydraulic Cement Materials and Mixtures Other Materials Steel, Reinforcing Fibers, etc.
8 8 4. Design of Sustainable Pavements Process for Consideration of Sustainability in Pavement Design Sample Sustainable Design Strategies
9 9 Sustainable Design Considerations Long-life pavement Design for local materials Maximize recycled materials RAP, RAS, RCA Fast track construction Permeable pavements Enhance pavement smoothness
10 10 Concrete Pavement Design: Two-Lift Pavement to Maximize Recycled Materials Illinois Tollway August 2013
11 11 5. Construction of Sustainable Pavements Sustainability of Pavement Construction Operations Equipment fuel usage Quality Assurance Strategies for Improving Sustainability of Asphalt Pavement Construction Strategies for Improving the Sustainability of Concrete Pavement Construction
12 12 Quality is Key The bottom line Proper construction is vital From a stable subgrade to a smooth surface we can use best practices to improve sustainability
13 13 6. Use Phase Considerations Vehicle Fuel Consumption and Pavement Characteristics Tire-Pavement Noise Addressing Stormwater Runoff through Permeable Pavement Surfaces Pavement Thermal Performance and the Urban and Global Climate Lighting
14 14 7. Maintenance/Preservation/ Rehabilitation Practices Pavement Preservation and Sustainability Asphalt-Surfaced Pavement Maintenance and Preservation Treatments Concrete-Surfaced Pavement Maintenance and Preservation Treatments
15 15 8. End of Life for Sustainable Pavements End of Life Considerations for Asphalt Pavements End of Life Considerations for Concrete Pavements Fractionated Recycled Asphalt Pavement (RAP) for use in new concrete pavement
16 16 9. Sustainable Pavements in Liveable Communities Larger System Goals and Metrics Strategies for Improving Sustainability
17 Assessing Pavement Sustainability Life Cycle Cost Analysis Life Cycle Assessment Sustainability Rating Systems
18 Publication 18
19 For questions on the FHWA Sustainable Pavements Program contact: Gina Ahlstrom
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