1 / 18

O’Hare Modernization Project

O’Hare Modernization Project. Reflective Cracking and Improved Performance of Grooved Asphalt September 21 st , 2006 Research Overview and Future Tasks. William G. Buttlar, Associate Professor Imad Al-Qadi, Professor Hyunwook Kim, Hasan Ozer, Alex Apeagyei, Research Assistants. Outline.

chip
Download Presentation

O’Hare Modernization Project

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. O’Hare Modernization Project Reflective Cracking and Improved Performance of Grooved Asphalt September 21st, 2006 Research Overview and Future Tasks William G. Buttlar, Associate Professor Imad Al-Qadi, Professor Hyunwook Kim, Hasan Ozer, Alex Apeagyei, Research Assistants

  2. Outline • Project Overview (5 min.) • Reflective Cracking • Performance of Grooved Asphalt Pavement • New Tasks Proposed for ’07 (5 min.)

  3. Reflective Cracking Updates

  4. Preliminary Modeling(January – September ‘06) • Prepare Constitutive Models for ABAQUS Finite Element Program (Creep, Fracture) • Thermal Cracking Analysis using TCMODEL

  5. Assessment of Existing ORD Pavement(June-October) • In Consultation with Mr. David Peshkin, Applied Pavement Technologies • Review Databases, ORD Pavement Inventory, and PCI Distress Survey Results • Develop Schematics to Aid in Selection of Priority Pavements for Detailed Study (Example)

  6. Field Sampling and Testing(October-November) • Field Investigation of Priority Pavements (Coordinated w/ Mr. Peshkin) • Procurement of 150mm Cores (Away From Gear Loading Areas) for Lab Testing

  7. Site-Specific RC Modeling(October-December) • Finalize Meshes for Priority Pavements (Oct) • Run Parametric Investigations for Range of Typical Material Properties (Oct-Nov) • Re-run Parametric Investigations When Lab Results are Available (Nov-Dec)

  8. Performance of Grooved Pvt Update

  9. Literature Review(June – July ‘06) • Summarized During July Presentation • Will be Documented in Quarterly Report • Copies Available Upon Request

  10. Performance Test Development(June-October) • Feasibility of Adapting Advanced Pavement Analyzer (APA) Assessed • Logistics and Permission for Testing with of IDOT BMPR’s APA Completed • Preparation and Testing of Baseline Materials in Development

  11. Field Sampling and Testing(October-December) • In Conjunction with Mr. David Peshkin, Applied Pavement Technologies and in Parallel with Reflective Cracking Task • Field Investigation of Priority Pavements • Procurement of 150mm Cores (away from gear loading areas) and Lab Testing

  12. Proposed Tasks for ‘07

  13. Proposed Tasks for ‘07 • Develop Best Practices Guidelines for HMA Overlays at ORD • Goal: Minimize RC severity and subsequent FOD • PG Binder Selection • Mix Design and Thickness Considerations • HMA Performance Test

  14. Proposed Tasks (cont.) • Groove Collapse Modeling • Best Practices Guidelines for Grooved Pavement at ORD • Goal: Minimize Deterioration of Grooved Pavement Surfaces • PG Binder Selection • Mix Design Considerations • Groove Geometry Considerations • Performance Test Protocols

  15. Thank You !!

  16. Methodology

  17. h An example for micro-structural considerations • Explicit consideration of surface roughness of interfaces as a micro-structural property (i.e. saw-tooth model) • Consider degradation of h in a plasticity model • Degradation due to shear stresses at the pavement surface • Due to deynamic tire-pavement interaction PCC tining prior to HMA overlay

  18. DE Modeling of Grooved AC Beam 1.5 inch 1/4 inch 1/4 inch 9.5 mm NMAS

More Related