1. 1 Pennsylvania Concrete Conference January 26, 2010

2. 2 CP Tech Center Who we are! What we do! What we produce! Who can benefit!

3. 3 Who We Are Uniting agencies, industry, and universities to advance concrete pavements through research and technology

4. 4 Background  Located at Center for Transportation Research and Education (CTRE) at Iowa State University  Originally founded in 2000 as an Iowa based industry center  Became national center in Jan. ‘06  Current sponsors: ICPA, Iowa DOT, ACPA, CRSI, PCA

5. 5 Facilities  Offices at Research Park with InTrans  Research PCC lab on campus  Mobile Lab

6. 6 What We Do We seek to  Fill knowledge gaps in concrete pavement  Develop or collect cutting edge technology and  Present it to the pavement construction community in a form that is accessible and useful

7. 7 What We Do  Learn what problems need to be solved  Find ways to meet those needs  Present findings in a usable form

8. 8 What We Do  We are a small unit that subcontracts work as required  Almost everything is in collaboration  We provide technology not advocacy  We try to be strategic rather than reactive  We seek to work with anyone interested in concrete pavements

9. 9 CP Road Map to the Future Comprehensive, collaborative, strategic plan for concrete pavement research and technology

10. 10 Mix & Materials Design Construction Pavement Management / Business Systems Unifying Vision 12 Tracks The highway community will have a comprehensive, integrated, fully functional system of concrete pavement technology that provides innovative solutions for customer- driven performance requirements

11. 11 6 Strategic Focus Areas 1.Mix design & analysis 2.Surface characteristics 3.Long-life pavements 4.Concrete overlays 5.Equipment innovations 6.Sustainability (Identified by Advisory Board)

12. 12 What We Produce  Research and Reports  Technology Manuals  Tech Briefs  Technical Presentations  Demonstration Projects

13. 13 Research & Reports Completed in 3 yrs. (17 million) Example Research 1.Freezing-Thawing Durability of Low Permeability Concrete 2.Crack Development in Concrete Utilizing Various Saw Depths 3.Deicer Scaling Resistance of Concrete Containing Slag Cement 4.How to Reduce Tire-Pavement Noise 5.Improving Variability and Precision of AVA Test Results 6.Material and Construction Optimization for Prevention of Premature Pavement Distress 7.Development of Performance Properties of Ternary Mixtures: Phase I http://www.cptechcenter.org/projects/reports.cfm

14. 14 Manuals  Integrated Materials and Construction Practices for Concrete Pavement: A State- of-the-Practice Manual (330 page)  Guide to Concrete Overlays (80 page)  Gide on Reducing Tire Pavement Noise  Update of Airport Guide on Rigid Pavement  Manual of Practice for Sustainability (under development)  Guide for Roller Compacted Concrete (under development)

15. 15 New Technical Briefs 5 new tech briefs in 2009  Diamond grinding  Two-lift paving  Freeze-thaw durability of low-permeability concrete  Nonwoven Geotextile Interlayers  Effects of early-entry sawing on PCC cracking

16. 16 Training Programs / Year  Over 4,000 people trained each year  20 workshops and seminars  60 presentations on concrete pavement  Train the Trainer  Training on Demand (21 modules)

17. 17  Workshops conducted in Colorado, Kentucky, Iowa, Oklahoma & Missouri  Workshops scheduled in Utah  Two openings available for state workshops  Detailed information presented on the following: Concrete Pavement Preservation Workshops 1.Preservation Concepts 2.Pavement Evaluation Techniques 3.Slab stabilization and slab jacking 4.Partial-depth repairs 5.Full-depth repairs 6.Retrofitted edge drains 7.Load transfer restoration 8.Diamond grinding and grooving 9.Joint resealing and crack sealing 10.Strategy Session

18. 18 IMCP Workshops  19 IMCP Workshops were held in last 3 yrs (9 one-day and 10 two-day workshops)  1,606 estimated participants attended the workshops  Each workshop rated on the following scale: ­ (5) Very Good ­ (4) Good ­ (3) Ok ­ (2) Fair ­ (1) Needs Improvement  Overall rating for 19 workshop program was 4.34

19. 19 Establish an Interactive, Online, Training on Demand Program  Training on Demand modules have been developed and made available on NHI and soon will be available on the CP Tech Center websites  Users participate in online Integrated Materials and Construction Practices for Concrete Pavements and Concrete Preservation module training at their convenience using Computer Based Interactive Training (CBIT)  Users can access any one of the training modules, listen to audio and visual presentations & answer questions at the end of the modules 25 Concrete Courses

20. 20 Concrete Overlay Field Application States Joined the Program 1.Delaware 2.Louisiana 3.Maryland 4.Nevada 5.New Mexico 6.North Dakota 7.Pennsylvania 8.South Dakota 9.Texas 10.Washington 11.West Virginia Interested States 1.Arkansas 2.California 3.Georgia 4.Kentucky 5.Maine 6.Minnesota 7.Nebraska 8.North Carolina 9.Virginia Iowa – 2009-2010 Field Application Research Projects 5 States – 6” Bonded Overlays over HMA (6’x6’ joints) 3 States – 6” Unbonded Overlays over Concrete (6’x6’ joints) 1 State – 7” Bonded CRCP over Plain Jointed Concrete

21. 21 Overlay Program Impacts StateRouteLengthOverlaySq. Yds. North DakotaHwy 118 miles5” Bonded77,500 New York Port Authority JFK Airport18” Unbonded323,822 Minnesota8 State Routes Varies from 5” to 10” 1,305,000 Iowa37 state & county projects 190.13 milesVarious2,822,387 South DakotaVermillion Airport 7” Unbonded34,000 South DakotaSD 502.5 miles7” Unbonded40,000 Michigan6 City Projects4” Unbonded205,000 Total4,807,709

22. 22 Demonstration Projects  Two lift  Overlays

23. 23 National Concrete Consortium-NC 2  State Engineers, Researchers and Industry  Meet every 6 months  Share Problems and solutions Research Innovations CP Tech provides secretariat services 19 States

24. 24 LLCP Team Tom Cackler, Angel Correa, Dan Dawood, Peter Deem, Jim Duit, Georgene Geary, Andrew Gisi, Amir Hanna, Steve Kosmatka, Rob Rasmussen, Bob Tally, Shiraz Tayabji, Suneel Vanikar, Jerry Voigt, Katie Hall

25. 25 2010 Focus 1.Mix Design Components 2.Finalize Surface Characteristics 3.Joint Deterioration 4.Concrete Overlays 5.High Quality Foundation Substantially

26. 26 Mixture Design  Develop a software decision support tool and proposed specifications for ternary mixtures  Evaluate field test methods for concrete pavement mixture design and analysis  Publish a guide specification for concrete pavement mixtures  Develop a protocol to assist with selecting mixture proportions

27. 27 Surface Characteristics  Measure Tire Pavement Noise on Different Concrete Texture to Determine Methods to Construct Quicker Pavement.  In 3½ years, Over 1000 Unique Textures Tested 150 miles of test surface in 20 States and 6 Countries

28. 28 1/8" Deep Transverse Random Spacing + Burlap 102 dBA110 dBA Negative Texture

29. 29 Surface Characteristics Activities  Technology Transfer Pieces  Fundamentals of Quieter Concrete Pavements  Selecting the Right Texture for the Right Situation  The Language of Pavement Noise  Model Texture Guidelines  Joint Effects on Noise and Annoyance

30. 30 Concrete Overlay Program Second Edition September 2008 1.Field Application Program 2.Concrete Overlay Design Project 3.Technology Demonstration Projects 4.Overlay Field Research 5.Concrete Overlay Costs 6.Concrete Overlay Overruns

31. 31 Concrete Overlay Design Project  Develop Guide for Existing Concrete Overlay Design Methodology in the next 12 months  ETG selected and held first meeting  Evaluate 4 to 5 software programs, choose one to two for each type of Overlays carry forward and develop a number of examples.  Guide will be 30+ pages  4 page tech brief plan explaining evaluations of software programs

32. 32 Technology Demonstration Projects  Concrete overlay open houses  Iowa US 65 (September 2009)  Delaware US 13 (November 2009)  Proposed concrete overlay open houses  Pennsylvania  Western State  Promote overlay workshops  23 presentations in 13 states in over a year and a half period

33. 33 Iowa/National Research Objectives  Reduce construction time & quantity overrun concerns w/GPS mapping & paver control  Evaluate use of GPS controlled saws  Evaluate need for milling & controls  Evaluate us of innovative bond breakers  Consider ways of reducing paving train length  Evaluate pavement strength vs. opening time  Control quantities, reduce survey needs, reduce construction time, reduce traffic control problems

34. 34 Stringless Control Ground Equipment

35. 35 Joint Deterioration  Conduct laboratory tests and develop guidance documents for practitioners on how to prevent and mitigate joint- related distress in concrete pavements  Deliver workshops and webinars for practitioners

36. 36 Concrete Pavement Foundations Develop a manual of practice for concrete pavement foundations  Conduct a national training program based on the manual  Develop technical briefs related to concrete pavement foundations

37. 37 Sustainable Concrete Pavements Future work  Facilitate and present at international conference on concrete pavement sustainability  Develop manual of better practice on concrete pavement sustainability  Conduct workshops and field demos  Goal is to produce user-friendly material to assist owners and decision makers on technologies available and how to measure benefit

38. 38 THANK YOU! Dale S. Harrington Representing the National Concrete Pavement Technology Center www.cptechcenter.org dharrington@snyder-associates.com 515-964-2020