Advancements in Concrete Paving A National Perspective WCPA Annual workshop February 16, 2017

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1 Advancements in Concrete Paving A National Perspective WCPA Annual workshop February 16, 2017 Gerald F. Voigt, PE President & CEO American Concrete Pavement Association

2 You can t try what hasn t been specified, but you can t specify what hasn t been tried 2017 WCPA Annual Concrete Pavement Workshop

3 How do we Advance? Is advancement driven by NEED? If so, what do highway agencies need/want? Long-lasting Smooth Cost-effective Rapidly Built Sustainable

4 How do we Advance? Does industry have the same NEEDs? Develop Best Practices Reduce User Costs During Construction Reduce Initial Cost Develop Competitive Paving Applications Increase Certainty Pavements Will Meet Expectations

5 How do we Advance? AGENCY: Specify Clearly What is Desired INDUSTRY: Deliver Clearly What is Desired

6 What Really Makes Things Happen? Test, Evaluate & Refine Ask Challenging Questions Implement Solutions PROCESS FOR INNOVATION Identify Needs Develop Solutions

7 What Really Makes Things Happen? Contractors WisDOT & FHWA PEOPLE WCPA, ACPA & CP Tech Manufacturers & Suppliers

8 Advancements Are Not an Accident! Requires intentional efforts. Requires focus. Requires taking on risks. Requires collaboration: Industry (contractor) Agency (engineer) Requires investment!

9 How Has Industry Helped Implementation Led lobbying efforts for technology implementation legislation in highway bills. Most recently in FAST Act: AID-PT Accelerated Implementation and Deployment of Pavement Technologies. Collaboration between ACPA and NAPA. $12M/year for implementation of technology. Good for our industry/agency partnership.

10 Which Agenda is ACPA Pushing? Agency Long-lasting Smooth Cost-effective Rapid Sustainable Industry Develop Best Practices Reduce User Costs During Construction Reduce Initial Cost Develop Competitive Paving Applications Increase Certainty Pavements Will Meet Expectations Answer: BOTH!

11 Technologies Being Implemented in U.S. Performance Engineered Mixtures (PEM) Optimizes paste and aggregate components. Develops mix specifically for paving. Ternary Concrete Mixes Related closely to PEM. Takes advantage of fly ash and slag benefits on durability and cost of mixture. Super Air Meter Better characterizes air void system. Helps achieve durable concrete and lowers the susceptibility to scaling, cracking or other damage. Resistivity Test Durability test as part of PEM. Electrical charge passed through concrete is used as an indication of the concrete's ability to resist chloride ion penetration.

12 2017 WCPA Annual Concrete Pavement Workshop Technologies Being Implemented in U.S. Box Test Internal Curing Part of PEM Simple test to qualify mixtures for slipforming. Evaluates the ability of a mixture to be consolidated and subsequently hold an edge. Employs highabsorption fine aggregates to introduce water for thorough cement hydration. Improves mix uniformity and helps reduce curling/warping. Wisconsin Concrete Pavement Association Advanced Mixing Plants New controls and sensors and/or new continuous mixer technology. Improved uniformity results for optimized mixtures. Maturity Testing Non-destructive test uses timetemperature relationship of concrete to estimate strength. Useful for speeding staging operations and opening to traffic. February 16, 2017

13 Technologies Being Implemented in U.S. Concrete Used for Resurfacing Well-established technology for concrete or asphalt pavements. Provides competitive solution for agency needs! Recycling and Two-Lift Paving Important for Sustainability and Life-Cycle Assessment. Facilitates use of all existing materials on site. Long-Life Concrete Paving The ultimate pavement for most critical roadway corridors. Best suited where traffic shows concrete is the only true answer. Next Generation Concrete Texture Provides low tireroad noise with renewable method. Provides opportunity to change road noise of existing sections.

14 Technologies Being Implemented in U.S. Dowel Bar insertion Enables accurate dowel placement with less cost. Facilitates traffic management, allowing use of grade in front of paver. Stringless Paving Improves safety, smoothness and traffic flow. Useful for any application. Growing in popularity. Zero-Clearance Paving Enables concrete paving without extra room needed for paving machine. Helps with traffic management. Smart Curing Smart technology uses on site information to determine curing condition/need. Addresses durability, curl/warp and plastic cracking.

15 Technologies Being Implemented in U.S. Real-Time Smoothness Measurement Important paving crew feedback for ultimate quality. Ties crew actions and machine operation to results. Long-Life Dowels Ensures embedded bars last as long as the concrete. Reduces corrosion-related problems. Precast Concrete Paving Important for High- Traffic Quick Repair Solutions. Facilitates traffic management. Mechanistic Pavement Design Allows for optimization of thickness. Addresses common overdesign of concrete pavements.

16 Technologies Being Implemented in U.S. RCC Concrete Paving Zero-slump concrete placed and compacted. Best suited for industrial, base layer, and lowvolume road applications. Reclaiming Layers for Base Cold In-Place Recycling Equivalent. Stabilizes damaged asphalt roads with portland cement as prep for new slab/overlay. Dowel Location Scanners Non-destructive QC test for locating dowels. Validates installation quality using dowel bar insertion equipment. Non-Destructive Thickness Testing Handheld MIT Scan technology enables thickness verification testing without cores. Saves time on QC/A.

17 Advancements are Being Driven by Need! Long Lasting Smooth Cost Effective Rapid Sustainable PEM Design Smart Cure Real Time Smoothness Stringless Paving ME Design Overlays Maturity testing Maintenance of Traffic Zero Clearance Precast PEM/Ternary Recycling 2-Lift

18 Technology with Biggest Impact Potential? Ready to Go Technology! Innovations available: 6x6x6 Fabric Interlayers Comprehensive technology guide and spec available. New design method (BCOA). Help available to engineers!

19 6x6x6 Resurfacing Concrete on asphalt Tried in many states Performing on Interstate Design methods created through pooled fund study

20 6x6x6 Resurfacing Latest major project West Springfield, IL I-72 Sangamon County

21 6x6x6 Resurfacing

22 6x6x6 Resurfacing

23 Fabric Interlayer Unbonded Overlays For concrete on concrete Tried in many states Performing on Interstate

24 Concrete Overlays as Percentage of Paving Overlays Percentage of Total Concrete SY 20% 15% 10% 5% 0% Since inception of Overlay Development Initiative Average = 12.25% As of: November 2016

25 Concrete Overlay Growth Overlays Percentage of Total Concrete SY 14% 12% 10% 8% 6% 4% 2% 0% Prior to As of: November 2016

26 What Impact Can Concrete Overlays Have? Industry estimates that: True competition could exist in resurfacing million square yards of annual overlay potential Would double concrete pavement market Requires taking only 10% bite from asphalt resurfacing volume Total SY of Concrete Current w/competition Based on PCA Market Study

27 2017 WCPA Annual Concrete Pavement Workshop More Competition Between Industries Needed DOT Spending on Concrete vs. Asphalt Paving 0 10% 10 20% +20% Estimated $5B Increase (or roughly 10% increase in Buying Power) Wisconsin Concrete Pavement Association February 16, 2017

28 Unit Price the Measure of Competition Benefit

29 It s Our Responsibility to Advance Technology! Options More tools in the tool box Quality Clearer specs and more meaningful tests Partnership Working together begets success Efficiency Doing more in less time and at lower cost

30 Implementing Available Solutions This is what industry needs and expects from WisDOT and other agencies! Align your policies to allow both industries to be healthy and to compete for work. Use implementation of technology and competition as tools to drive innovation! You ll ensure that Concrete Pavements continue to be Good for the Taxpayer

31 Advancing Innovative Paving Technologies This is what highway agencies need and expect from industry! With your help, engaging private sector, academia and public sector, this is what our concrete paving community will deliver! We ll ensure that Concrete Pavements continue to be A Valuable Solution

32 Let me Tell Ya We Need a New Vision

33 Vision 2040!

34 Thank You! apps.acpa.org ACPA Application Library local.acpa.org ACPA-affiliated Chapter/States resources.acpa.org Concrete Pavement Resource Center wikipave.org ACPA s paving wiki

35 Municipal Streets & Intersections (>30,000 SY) Appleton Road (STH 47) Interchange Winnebago County, Wisconsin Contractor Vinton Construction Company Owner Wisconsin Department of Transportation, NE Region Engineer OMNNI Associates

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