SMSHE Southeastern Michigan Society for Healthcare Engineering

Transcription

1 SMSHE Southeastern Michigan Society for Healthcare Engineering Presentation on: Pavement Management and Preservation: The Right Fix at the Right Time

2 PRESENTATION OVERVIEW Asset Evaluation (Management) Maintenance Solutions Capital Investment Innovative Solutions Questions

3 TYPICAL PHASES OF A PROGRAM Programs are usually provided in three phases: Phase I Asset Evaluation (Pavement Management) Phase II Investigation/Engineering - Bid Documents / Bidding Phase III Construction

4 Pavement Management Systems Common Visual Evaluation Methods PASER Rating System Pavement Condition Index - PCI Each system assigns a numerical rating to pavement based on surface condition VISUAL EVALUATION

5 Pavement Management Systems PASER Rating System Pavement Surface Evaluation and Rating (PASER) Developed by the University of Wisconsin Madison Transportation Adopted by The Michigan Transportation Asset Management Council Statewide Standard Uses a scale of 1 to being Excellent 1 being Failed See Sample Hand Out

6 PASER Methodology

7 PAVER Program - PCI - Methodology Pavement Condition Index - PCI More Detailed Evaluation of Distress w/ Computer software calculation of condition index rating Developed by the US Army Corps of Engineers Uses a scale of 0 to being Excellent 0 being Failed Develops inventory, assess current condition, develop deterioration models, develop M&R models

8 UNDERSTANDING YOUR ASSET WHAT CAN I DO WITH CONDITION DATA?

9 UNDERSTANDING YOUR ASSET (MANAGEMENT) Use condition data to develop maintenance plans

10 UNDERSTANDING YOUR ASSET (MANAGEMENT) Use condition data to develop maintenance plans

11 Levels of Rehabilitation Routine Maintenance / Preventative Maintenance» (Extend Service Life 1 to 3 years) Surface Treatments» (Extend Service Life 3 to 5 years) Major Rehabilitation (Capital Investment)» (Variable Service Life Extension - dependent on process) 11

12 ROUTINE / PREVENTATIVE MAINTENANCE GENERAL MAINTENANCE Crackfilling» Evaluate on an annual basis» HIGH PRIORITY» Protects against moisture infiltrating base Seal Coat* discussion» 1 st Application 3 years after installation» Every other year after Localized Patching (Minimal Area) Striping 12

13 WHAT IS THE APPROPRIATE MAINTENANCE STRATEGY? Candidate for Routine Maintenance

14 WHAT IS THE APPROPRIATE MAINTENANCE STRATEGY? Candidate for Routine Maintenance

15 WHAT IS THE APPROPRIATE MAINTENANCE STRATEGY? Candidate for Surface Treatment or Overlay

16 BEST PRACTICES

17 PAVEMENT RESURFACING Overlay / Structural Overlay Partial Depth Milling & Pave Pulverize & Pave Removal & Replacement Asphalt Only 17

18 UNDERSTANDING YOUR ASSET (MANAGEMENT) Use condition data to develop maintenance plans

19 SURFACE TREATMENT THIN OVERLAY OR STRUCTURAL OVERLAY

20 SURFACE TREATMENT THIN OVERLAY OR MILL AND OVERLAY

21 SHORT vs. LONG TERM RECOMMENDATION Preventative maintenance on anything that is maintainable Look for innovative solutions for deteriorated assets!!

22 GREAT IDEA BUT..WE ARE WAY PAST MAINTENANCE How do you maintain this pavement????

23 UNDERSTANDING YOUR ASSET (MANAGEMENT) Use condition data to develop maintenance plans

24 MAJOR REHABILITATION When Maintenance is Not Enough! Traditional Reconstruction Pulverize Grade/Compact Overlay Full Depth Mill and Overlay Full Depth Reclamation Pavement installation 24

25 ..WE ARE WAY PAST MAINTENANCE

26 Investigation for Capital Investment STEP II Investigation and Engineering Technology and Tools Available to Facility Managers» Most Common Ask John what was done (he has been here forever)» Pavement Cores/ Soil Borings» Non Destructive Testing Falling Weight Deflectometer

27 INVESTIGATION Ask John? What / Where? 27

28 INVESTIGATION / EVALUATION PAVMENT CORES / SOIL BORINGS Minor cost for valuable information Reduces unknowns to protect:» Time sensitive schedule» Project performed within budget» Budgets and scope of work maximizes your dollars and longevity of repairs Information obtained» Asphalt depth, aggregate depth, soils strength, moisture content 28

29 INVESTIGATION / EVALUATION NON DESTRUCTIVE TESTING Falling Weight Deflectometer Quick process to generate extensive data» Pavement structure (SN)» Subgrade support (Mr)» Provides data to target cores/probes 29

30 INVESTIGATION / EVALUATION 30

31 MAJOR REHABILITATION WHEN CONDITIONS DICTATE = below the line FULL RECONSTRUCTION OPTIONS» TRADITIONAL/CONVENTIONAL RECONSTRUCTION» PULVERIZE GRADE/COMPACT AND OVERLAY» FULL DEPTH RECLAMATION (FDR) Each of these options has pros/cons; site conditions / asset inventory and owner needs will drive the program 31

32 MAJOR REHABILITATION ENGINEERED SOLUTION Prepare Engineering Documents Conduct Pre-Bid Meeting Award to Most Qualified Firm (Note: Low Bid Firm was not the deciding factor) 32

33 Full Depth Reclamation (FDR) FDR is a rehabilitation process in which the full thickness of the asphalt pavement and a predetermined portion of the underlying materials are uniformly pulverized and blended to provide a upgraded base material. 33

34 FDR Pre-Construction Site Conditions 2012 Pilot Project Southeast Michigan Energy Company Parking Lots and Drives 34

35 FDR Mill & Fill Overlay Conventional Construction 35

36 2012 Pilot Project Application of Chemical Stabilization Agent 36

37 Chemical Stabilization Mixing Performed by Qualified Contractor under proper guidance and observation 37

38 Qualified Contractor Performs the Work Compacting & Grading of FDR Surface (Performed under observation of qualified QA / QC Professional) 38

39 Field Material Verification Verification of Laboratory Design during Installation (critical to the success of the program) 39

40 2012 Pilot Project Final Asphalt Concrete Surface 40

41 Benefits of Asset Management Reduces Pavement Maintenance Costs Helps to Improve Quality of Life Promoting timely repair of damaged pavements Providing smoother rides and reduces travel delay Also helps to promote ongoing business opportunities with consultants and contractors 41

42 Question and Answer Presenter: Anthony Thomas, PE