Develop Guidelines for Pavement Preservation Treatments and for Building a Pavement Preservation Program Platform for Alaska

INE/AUTC 12.0

The Bridge Newsletter Spring 2017

-Bayless retires-Lifesaving flood relief-Asphalt expert joins S&T-First Prakash Lecturehttps://scholarsmine.mst.edu/bridge/1004/thumbnail.jp

It's about time: Investing in transportation to keep Texas economically competitive - Appendices

APPENDIX A : PAVEMENT QUALITY (Zhanmin Zhang, Michael R. Murphy, Robert Harrison), 7 pages -- APPENDIX B : BRIDGE QUALITY (Jose Weissmann, Angela J. Weissmann), 6 pages -- APPENDIX C : URBAN TRAFFIC CONGESTION (Tim Lomax, David Schrank), 32 pages -- APPENDIX D: RURAL CORRIDORS (Tim Lomax, David Schrank), 6 pages -- APPENDIX E: ADDITIONAL REVENUE SOURCE OPTIONS FOR PAVEMENT AND BRIDGE MAINTENANCE (Mike Murphy, Seokho Chi, Randy Machemehl, Khali Persad, Robert Harrison, Zhanmin Zhang), 81 pages -- APPENDIX F: FUNDING TRANSPORTATION IMPROVEMENTS (David Ellis, Brianne Glover, Nick Norboge, Wally Crittenden), 19 pages -- APPENDIX G: ESTIMATING VEHICLE OPERATING COSTS AND PAVEMENT DETERIORATION (by Robert Harrison), 4 page

Laboratory and Field Evaluation of Modified Asphalt Binders and Mixes for Alaskan Pavements

In order to properly characterize modified asphalt binders and mixes for Alaskan pavements, this study evaluated properties of 13 asphalt binders typically used in Alaska from three different suppliers, and 10 hot mix asphalt (HMA) mixtures which were either produced in the lab or collected from existing paving projects in Alaska. Various binder and mixture engineering properties were determined, including true high binder grades, complex modulus (G*), and phase angle (δ) at high performance temperatures, multiple stress creep recovery rate and compliance, bending beam rheometer stiffness and m-value, Glover-Rowe parameter, ΔT, rheological index, and crossover frequency for binders, and rut depth, critical strain energy release rate (Jc), Indirect tensile (IDT) creep stiffness and strength for mixtures. Binder cracking temperatures were determined using asphalt binder cracking device. Mixture cracking temperatures were determined with IDT creep compliance and strength data. It was found that rutting and cracking resistances of the mixtures with highly modified binders were better than the mixture with unmodified asphalt binder (PG 52-28). Future recommendations for highly modified asphalt binders applications and research were provided based on laboratory testing results and field survey evaluation

A User’s Guide for By Product and Discarded Material Utilization in Highway Construction and Maintenance

This report presents a user\u27s guide for an expert decision-making system that utilizes findings of an extensive literature search and review conducted as part of this study. The literature search and review were conducted to determine current attitudes and document available technical data relative to the use of recyclable and recoverable materials in highway construction and maintenance activities. Specifically, the literature search focused upon the engineering, economic, and performance aspects of using recyclable and recoverable materials in highway construction and maintenance projects. The effort centered upon asphalt and Portland cement concrete pavement recycling, discarded tire recycling, reuse of paint removal wastes, fly ash, glass, alternative fuels, and other miscellaneous recycled and recovered materials as related to construction and maintenance of highways. Additionally, regulatory and policy matters associated with the use of recyclable and recoverable materials in the transportation area were investigated during the review of pertinent literature. The user\u27s guide was developed for use by Kentucky Transportation Cabinet officials to address a large number of multi-disciplinary issues. These issues may include, but not be limited to, environmental impact legal or legislative mandates, performance, cost and implementation. Since the aforementioned variables change with time, there is a user-friendly updating feature for the expert decision-making system. This feature of the expert system format presentation represents a major advantage over the familiar report format. An expert system has three major parts: a user interface, an inference engine, and stored expertise. When consulting the expert system, the user states a problem and interacts with the system. An expert system\u27s inference engine is software that actually carries out the reasoning needed to solve a problem. This software draws upon the stored expertise in order to reach its conclusions

Improving Performance, Knowledge, and Methods to Provide Quality Service and Products

The objectives of this study were to educate staff about the impact of research in Alaska, enhance communication and coordination amongst stakeholders, and formulate a long-term research and implementation research plan for pavement and materials. Education begins with an overview of pavement design, construction and maintenance in Alaska since the 1900’s through a series of webinars. Interviews with five state materials engineers were used to explore best practices. Finally, a workshop focused on developing a coordinated research program and improve implementation activities. The workshop provided a series of recommendations to The Alaska Department of Transportation and Public Facilities which will enhance the value of the departments research program.Introduction ........................................................................................................................................................................ 1 Webinar 1: Overview Pavements at 30,000 ft, 10,000 ft, 10 ft. Big Number Value of Assets ....................... 3 Webinar 2: Research and Pavement Design, Construction, and Maintenance in Cold Regions (Roadway Embankments and Foundation) ...................................................................................................................................... 4 Webinar 3: Pavement Design, Construction and Maintenance in High Traffic Volume Urban Environments ...................................................................................................................................................................... 6 Webinar 4: Pavement Design, Construction and Maintenance Considerations in Rural Alaska .................... 8 Webinar 5: Pavement Best Practices in Alaska: Innovation and New and Emerging Technologies ............. 10 Webinar 6: Summary of Interviews with 5 State Materials Engineers and a History of the Alaska Statewide Materials Section .......................................................................................................................................... 14 Webinar Survey................................................................................................................................................................ 17 Workshop Summary ....................................................................................................................................................... 17 Recommendation 1: Webinars ................................................................................................................................ 18 Discussion ................................................................................................................................................................ 18 Recommendation 2: Selection of Materials-Related Research ......................................................................... 19 Recommendation 3: Literature Search .................................................................................................................. 19 Recommendation 4: Implementation ..................................................................................................................... 20 Open Discussion ......................................................................................................................................................... 21 Action Items ................................................................................................................................................................. 21 Appendix A: Webinar Series 1 - Overview of Pavement Design Appendix B: Webinar Series II - Construction and Maintenance in Cold Regions, Appendix C: Webinar Series III - Construction and Maintenance Considerations in Rural Alaska Appendix D: Webinar Series IV - Construction and Maintenance Considerations in Urban Areas Appendix E: Innovation: Webinar Series V - New and Emerging Technologies Appendix F: Webinar Series VI - Interviews with State Departments of Transportation Material Section Heads Appendix G: A Report on Interviews with State Departments of Transportation Material Section Head