Asphalt Pavement Construction Update

Transcription

1 Asphalt Pavement Construction Update 2013 FTBA Construction Conference Richard Hewitt, PE State Construction Pavement Engineer

2 Smoothness Developmental Specification

3 Smoothness Developmental Specification Smoothness Committee Contractor s, FDOT, & FHWA Goals Separate Rolling Straight Edge from Laser Profiler Reward Smoothness Evaluate Ride Quality Use International Roughness Index (IRI) More Performance Spec - Less Method Spec

4 Smoothness Developmental Specification Pilot Projects Requirements for Dev Spec 330 Approval Interstate/Limited Access Roadway < 150,000 AADT

5 Pilot Projects Currently 8 pilot projects Ultimately, several pilots in each District

6 International Roughness Index (IRI) Measured in inches/mile Vertical movement per Distance Traveled Lower is Better Measured using Laser Profiler (laser van) Pilot Projects use SMO vans One day incorporate into CQC system Use IRI to calculate Incentive/Disincentive

7 Lot Count By LOT - FL Interstate FC-5 RA data LOTs w/ AADT 150,000 Represents all RA`data collected with AADT 150,000 (28,301 LOTs, 2,748 miles) between 1 Jan Dec Data w/ AADT 150,000 Top 10% IRI 35 Top 20% IRI 38 Top 30% IRI 41 Top 40% IRI 44 Top 50% IRI 47 Bottom 50% IRI 47 Bottom 40% IRI 50 Bottom 30% IRI 53 Bottom 20% IRI 57 Bottom 10% IRI IRI

8 Lot Count By LOT - FL Interstate FC-5 RA data - LOTs w/ AADT 150,000 Full Pay Zone IRI = 43-55, Net Pay Result = +$33,528 Incentive zone: IRI 42 10,242 LOTs 36% of all LOTs $1,218,057 Full pay zone: 43 IRI 55 11,264 LOTs 40% of all LOTs Disincentive zone: 56 IRI 95 6,634 LOTs 23% of all LOTs -$1,184,529 Represents all RA data collected with AADT 150,000 (28,302 LOTs) between 1 Jan Dec Top 10% IRI 35 Top 20% IRI 38 Top 30% IRI 41 Top 40% IRI 44 Top 50% IRI 47 Bottom 50% IRI 47 Bottom 40% IRI 50 Bottom 30% IRI 53 Bottom 20% IRI 57 Bottom 10% IRI IRI R&R zone: IRI > LOTs 0.6% of all LOTs

9 Incentive/Disincentive IRI Ranges LOT s are 0.1 mile to 0.01 mile long LOT incentive / disincentive weighted for LOT length IRI Result 30 $260/0.1 mile LOT < 43 +$20 / IRI point / 0.1 mile LOT Full Pay > $ 20 / IRI point / 0.1 mile LOT >95 Remove & Replace*

10 Incentive / Disincentive Table 330-5

11 mi. blocks w/ continuous analysis plot Fixed Interval Data Continuous Data 140 Threshold (95 IRI) IRI AVERAGE Continuous Exclusion Limits Fixed Exclusion Limits MILEPOST

12 Removal & Replacement (R&R) LOT s Continuous Analysis of R&R LOT s so only R&R unacceptable pavement Areas affected by R&R are tested again Use new Incentive/Disincentives for R&R areas affected by R&R

13 Smoothness Award Smoothest Pavement of the Year Developed Smoothness Awards Limited Access & Primary Roads 55 mph Lowest Average IRI & Lowest Maximum IRI Projects Tested in the Calendar Year ACAF Awarded Plaques Recognizes Outstanding Work

14 Smoothness Developmental Specification Last Smoothness Committee Meeting - Oct 9 th Reviewed Primary Road Analysis What s Next? Review Interstate Pilot Projects Discuss Primary Road Data & Potential IRI Limits Work on Primary Road Specifications Smoothness Equipment Expo Considering May 6 th in Gainesville Contact Rich Hewitt for: Spec presentation or explanation Review of past project data

15 Cross Slope

16 Cross Slope Task Team (SDO, SCO, SMO, & Contractors) Cross Slope Constructability & Typical Sections Provided Training at last Design Expo Worked with SDO & they ve made PPM changes so Typical Sections contain Intent of milling & paving scenario Control points & slope when mill or pave for slope More explicit design intent & construction info

17 Match Existing Milling Mill for depth in accordance with Plans & Specifications Paving Spread rate in accordance with Plans & Specifications Smoothness Meet surface requirements of Specifications (Laser or RSE) Measure Cross Slope after Milling Measure Cross Slope after Paving Cross slopes are for informational purposes

18 Design Expo 2013 June 12-14, 2013 Omni Hotel & Resort 1500 Masters Blvd Champions Gate, Orlando Provide cross slope presentation again Laser van presentation Working on having milling & paving equipment & representatives on site

19 CTQM Changes

20 Strikes Strike Expiration Strikes Expire 1 Year after Strike 1 Currently 1 year after Strike 1 or Strike 2

21 Expiration Date & Requalification Requalify 48 th month or after New Expiration Date = Current Exp. Date + 5 Years Requalify before 48 th month 5 years is added to date all requirements are met Typically the date of requalification exam Expiration Date Extensions Only for extreme or emergency cases

22 Specification Change Overbuild Spec change Allowed to Taper to Zero for 9.5 and 12.5 mixes Provided 1.5 dense mix above it July 2013 Specs

23 Older Specifications Asphalt on bridge decks & approach slabs Static compaction only Added by Structures to Jan 2009 Workbook Due to Spec reevaluation after I-35W bridge collapse in Minnesota

24 QC Roadway Report

25 QC Roadway Report Update Use latest version of Spreadsheet Allows 5 digit mix design # s New Reports Tons per day Tons per mix design Tons per Pay Item Etc.

26 Click Show Reports Button

27 LOT, Mix #, Use, Date, & Quantity

28 LOT, Mix Design & Tons

29 Daily Tons Tons by Day 5/14/2012 5/15/2012 5/16/2012 Total

30 QC Roadway Report Update Future Plans Possibly import Monthly Bituminous Certification Incorporate QC Roadway Report into MAC system

31 Civil Integrated Management Using technology for design & construction

32 Civil Integrated Management 3D Modeling Generate 3D Model of existing conditions from survey data Design & Generate 3D Model of New Project Use 3D Models to develop view of project Can walk through construction & identify conflicts in design Can drive through the fully constructed project on the computer 3D Model can be used to operate construction machinery Automated Machine Guidance Other technologies used for construction Intelligent Compaction

33 Civil Integrated Management

34 Civil Integrated Management

35 Civil Integrated Management

36 Automated Machine Guidance

37 Milling

38 Paving

39 Civil Integrated Management Attend the Civil Integrated Management Session Tomorrow at 8:00 am Future Meetings with Contractors & Central Office Discuss Contractor needs in order to promote using 3D Design for Automated Machine Guidance Contact Rich Hewitt if interested in participating

40 Future? Change Simplify Automate, Eliminate, or Reduce Forms/Data entry Ex. Dev Spec Smoothness- eliminates forms & data entry Use Technology for Inspection & Documentation Construction Automated Machine Guidance

41 Questions?