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1 TOP TEN CONSIDERATIONS LONG LIFE ASPHALT PAVEMENTS 2013 Internaonal Highway Technology Summit Sponsored by China Highway & Transportaon Society April 15-‐19, 2013 Beijing Jon A. Epps Texas A&M Transportaon Instute Texas A&M University College Staon, TX OUTLINE § Defini'on § Design Consideraons § Construcon Consideraons § Rehabilitaon Consideraons § Maintenance Consideraons § Other Consideraons HIGH QUALITY LONG LIFE PAVEMENT (5 to 40 Years Increase in Life) § Minimize Premature Pavement Distress § Minimize Rehabilitaon and Maintenance § Minimize User Inconvenience (Customer Focused Construcon) § Todays echnology/Materials /Contractors § Safe Driving Surface OUTLINE § Definion § Design Considera'ons § Construcon Consideraons § Rehabilitaon Consideraons § Maintenance Consideraons § Other Consideraons DESIGN CONSIDERATIONS § Safety § Thickness § Mixture SAFETY § Work Zone § Surface Properes – Fricon – Drainage – Splash and Spray – Noise § Fricon/Splash/Spray/Noise § Permanent deformaon § Thermal cracking § Water Suscepbility § Sffness § High RAP/RAS § Permanent deformaon § Fague resistance § Water suscepbility THICKNESS DESIGN MIXTURE/STRUCTURAL DESIGN § Sffness § Rufng § Fague § Thermal cracking § Water suscepbility § Aging § Lab mix-‐lab compacted vs plant mix-‐field compacted TRAFFIC/CLIMATE § Laboratory compacon effort § Binder selecon § Aggregate selecon § High binder contents RECYCLED MATERIALS § RAP/RAS binder sffness § Uniformity of RAP/RAS § Cracking-‐fague, thermal, reflecon § Aging LAB vs FIELD SAMPLES § Different properes – Compacon method – Condioning/aging § Control properes of mixture during construcon SUMMARY-‐DESIGN § Safe surfaces-‐fricon, drainage, splash-‐spray, noise § Specific mixtures for different layers § Proper use of recycled materials CONSTRUCTION CONSIDERATIONS § Balance § Equipment § QC/QA § Speed § Human Resources BALANCE Produc'on Placement Compac'on QC/QA § Agency/Contractor risk § No. of samples § Performance related tests § Use of QC/QA data to control process § Segregaon, joints, in-‐place density (air voids) SPEED OF CONSTRUCTION § Quality § Safety § Human resources § User delay HUMAN RESOURCES § Training § Cerficaon of personnel § (Accreditaon of laboratories) SUMMARY-‐CONSTRUCTION § Quality Control/Quality Assurance § Human Resources OUTLINE § Definion § Design Consideraons § Construcon Consideraons § Rehabilita'on Considera'ons § Maintenance Consideraons § Other Consideraons REHABILITATION CONSIDERATIONS § Lane occupancy me § Overlay thickness/mixture design § Selecon of alternave SUMMARY-‐REHABILITATION § Determine Condion of Exisng Pavement OUTLINE § Definion § Design Consideraons § Construcon Consideraons § Rehabilitaon Consideraons § Maintenance Consideraons § Other Consideraons MAINTENANCE CONSIDERATIONS § Lane occupancy me § Selecon of alternave § Roune vs prevenve maintenance – Patching – Fog seal – Slurry seal – Chip seal – Thin overlay SUMMARY-‐MAINTENANCE § Selecon of Alternave OUTLINE § Definion § Design Consideraons § Construcon Consideraons § Rehabilitaon Consideraons § Maintenance Consideraons § Other Considera'ons OTHER CONSIDERATIONS § Contracng method § Public informaon § Implementaon CONTRACTING METHOD Design Bid Build Design Build Design Build Operate Public Private Partnership (ownership) WARRANTYPUBLIC INFORMATION § Sustainability story § Customer focused construcon story § Future funding IMPLEMENTATION § Development of new technology § Speed of implementaon § Reduce costs § Increase life § Sustainability SUMMARY-‐OTHER CONSIDERATIONS § Warranty § Public informaon § Implementaon TOP 10 § What can we do today? § What pracces are commonly used today? § Consider today’s capabilies – Technology – Materials – Contractors – Customer Focused Construcon – Safety TOP 10 § Design – Safe Surfaces – Specific Mixtures for Different Layers – Proper Use of Recycled Materials § Construcon – Quality Control/Quality Assurance – Human Resources § Rehabilitaon – Determine Condion of Exisng Pavement § Maintenance – Selecon of Alternave § Other – Warranty – Public Informaon – Implementaon
本文标题:XXXX第六届中国公路科技创新高层论坛__专家讲稿-国内
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