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Accelerated Testing and
Instrumentation: A
Canadian Case Study Susan Tighe, PhD, PEng
Norman W. McLeod Professor in Sustainable Pavement
Director, Centre for Pavement and Transportation Technology
University of Waterloo
Visiting Professor University of the Sunshine Coast
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Outline of Presentation
• Introduction
• Research Methodology
• Experimental Analysis
• Analysis of Results
• Findings and Impact
• Closing Thoughts
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Introduction
• 1,000,000+ km ; $200 Billion Investment
• Roads and Airfield Pavements
• Massive Investment: Requires Repair
• Dramatic Gap in Funding and Needs
• Vital to Economy, Quality of Life
• Many Factors Impact Performance
• Flexible, Rigid, Composite, Surface Treatments, Gravel [TAC 2013]
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Introduction
• Climate Change Impacts on Infrastructure
• Sustainability Incorporated into Design, Construction, Maintenance, Management
• Multi Criteria Decision Making: Technical, Economic, Environmental, Social, Political
• Negative impacts to the population
• Balance Needs
https://www.youtube.com/channel/UCLbomPwqCgvwr3hPm4oeyfwIntroduction
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Research Methodology
• Experimental Design
• Demonstrating differences between
materials
• Using innovative tools to measure Key
Performance Indicators
• Calibrating design models
• Technical/economic/sustainable designs
• Moving laboratory to field
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Research Methodology
• Several Partnerships Across Canada
• Factor Analysis:
Pavement Thickness
Traffic
Climatic Zone
Materials*
Maintenance and Management Techniques
* Emphasis on sustainable materials
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Research Methodology
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Management Needs
(TAC, 2013)
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Research Methodology
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Management Needs
(TAC, 2013)
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Experimental Analysis
• Asphalt Mix Designs
• Asphalt Pavement Thickness
• Jointed Plain Concrete Pavement
• Pervious Concrete Pavement
• Concrete Overlay
• Structural Dome Pavements
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Experimental Analysis
• Technical
• Economic
• Sustainable
• Costs/Benefits
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Analysis of Results : Asphalt
• Asphalt Mix Designs
• Asphalt Pavement Thickness
• Warm Mix
• Recycled Asphalt Pavement
Performance
• Recycled Crumb Rubber
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Analysis of Results : Asphalt
• Asphalt Mix Designs
• Asphalt Pavement Thickness
• Warm Mix
• Recycled Asphalt Pavement
Performance
• Recycled Crumb Rubber
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Engineering Analysis
• Quality Control
• Geogrid Design
• Structural Analyses
• Laboratory Tests
• Field Tests
• Quality Assurance
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Analysis of Results : Asphalt
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Analysis of Results : Asphalt
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Leung et al
rOFC
rOGC
SMA
HL-3
Each section approx. 600 m long
Rubberized Open Friction
Course (rOFC)
Rubberized Open Graded
Course (rOGC)
Stone Mastic Asphalt (SMA)
Control: Hot-Laid 3 (HL-3)
Premium Aggregate
Local Aggregate
Premium Aggregate
Local Aggregate
1” (25 mm) TYP
First truly controlled study
Integrated CPX and PBM
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Analysis of Results : Asphalt
• Cost-Effective Usage of
Innovative Materials
• Recycled Asphalt Shingles,
Recycled Asphalt Pavement
Recycled Crumb Rubber
• Pavement Thickness
• Strategic Design
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Engineering Analysis
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Analysis of Results : Concrete
• Jointed Plain Concrete Pavement
• Pervious Concrete Pavement
• Fast Track Concrete Repairs
• Concrete Overlay
• Structural Dome Pavements
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Analysis of Results : Concrete
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Analysis of Results : Concrete
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Analysis of Results : Concrete
• Cost-Effective Usage of
Innovative Materials
• Fast Track Repairs
• Concrete Overlays
• Structural Dome Designs
• Pervious Concrete
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Engineering Analysis
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Analysis of Results : Performance
• Impact of Maintenance
Treatments
• Noise Measurements
• Evaluation of Distress
• Safety Analysis
• Development of New Measures
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Analysis of Results : Performance
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Analysis of Results : Performance
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Analysis of Results : Performance
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• Climate
• Hierarchy
Hierarchy Functional
Classification Traffic Structure
1 Express Different
traffic volume and
equivalent axles ranges
defined
Different structural strengths
(MPa) to be defined
(Structure and
subgrade)
2 Troncal
3 Colector
4 Service
5 Local
Dry
Mediterranean
Humid
Available data and field evaluation
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Analysis of Results : Performance
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Findings and Impact
• Use Lab or Software Tools to examine mix designs and pavement designs
• Tools for Long Term Management
• Provide a design and management guides, specifications
• Technology Transfer
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Findings and Impact
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• Making information
available in a variety
of formats
• Working with
stakeholders
• Promoting Best
Practices
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Closing Thoughts
• Strategic Partnering
• Opportunity to Highlight Canadian
Expertise
• Provides National and International
Business Opportunities
• Impact on Research and Education of
Future Leaders
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Acknowledgements
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• Norman McLeod Chair
• CPATT Partners, Faculty, Students, Staff
• Transportation Association of Canada:
Pavement Asset Design and Management
Guide
• Queensland Pavement Centre
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Accelerated Testing and
Instrumentation: A
Canadian Case Study Susan Tighe, PhD, PEng
Norman W. McLeod Professor in Sustainable Pavement
Director, Centre for Pavement and Transportation Technology
University of Waterloo
Visiting Professor University of the Sunshine Coast