AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010
description
Transcript of AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010
![Page 1: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/1.jpg)
SHRP2 R06(E)
Real-TimeSmoothness Measurements on
Portland Cement Concrete PavementsDuring Construction
AASHTO Subcommittee on Construction2010 Summer Meeting
Burlington, Vermont, 18 August 2010
Project Principals: Robert Otto Rasmussen, PhD, INCE, PE (TX) Steven M. Karamihas, MSME Helga N. Torres, MSE, PE (GA)
Senior Program Officer: James W. Bryant, Jr., PhD, PE
![Page 2: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/2.jpg)
What not to expect from this project?A replacement for conventional profiling for Quality Assurance.
Technology that replaces better practices for constructing smoother pavements.
![Page 3: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/3.jpg)
What can you expect from this project?Validation of innovative tools for evaluating concrete pavement smoothness in real time.
Tools that can be used for Quality Control.
Tools that can reduce must-grinds, and thus reduce project delays and claims.
Improved understanding about what construction artifacts can affect smoothness.
Immediately implementable results.
![Page 4: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/4.jpg)
Project ObjectivesDemonstrate and evaluate real-time smoothness measuring technologies for concrete paving.
Develop draft specifications and construction guidance for use with these technologies.
![Page 5: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/5.jpg)
Research Team
Construction Expertise
National CP Tech Center(Paul Wiegand)
Gary FickSabrina Garber
Smoothness Expertise
George ChangDave Merritt
Principal Investigators
Robert RasmussenSteven Karamihas
Project Coordinator
Helga Torres
State DOTAnd
Paving ContractorsTechnology
Vendors
Instrumentation, Measurements
Expertise
Rich SohaneyRobert Watson
![Page 6: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/6.jpg)
Feedback“On the Fly Changes”
Real-Time Pavement Profile
Profile Characteristics
ŒŽ
Construction
Design
Materials Environment
Factors
Smoothness Statistics
IRI PIcalpro
Real-Time Profiler
Technology
ModelSpecifications
and Guidelines
Process
![Page 7: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/7.jpg)
Profile CharacteristicsObjectionable Profile Characteristics
Localized Roughness
Repetitive Features
Curled and Warped Slabs
Joint effects
Texture effectsSome of these don’t happen “behind the
paver”!
![Page 8: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/8.jpg)
Profile Characteristics
Œ Dowel Basket Rebound
Concrete Loading
Ž Stringline Sag
Localized Roughness
Profile Characteristics
ŒŽ
![Page 9: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/9.jpg)
Identifying Profile Characteristics
Cross-Correlation Profile Length (m)
Profile Length (m)
Pro
file
Ele
vatio
n (m
m)
Co
rre
latio
n
-1.0
-0.6
-0.2
0.2
0.6
1.0
HypothesizedProfile Segment
ProbablePaver Stops
![Page 10: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/10.jpg)
Overall Research Approach
Phase I – Technology Review
Phase II – Technology Evaluation
Phase III – Technology Demonstration
![Page 11: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/11.jpg)
Phase I – Technology ReviewTechnology Identification
6 Potential Real-Time Smoothness Measuring Systems
Evaluation Plan2 Systems Recommended for Evaluationin Phase IIRule Set / Technical RequirementsTest Section Identification
![Page 12: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/12.jpg)
Real-Time Smoothness TechnologiesNot Ready/Declined Participation:
Dynamic Surface Profiler (Surface Systems & Instruments)
Auto Rod & Level Profiling Device (APR Consultants)
Vehicle Terrain Measurement System (Virginia Tech)
Sliding Profiler (TxDOT-UT Arlington-TTI)
![Page 13: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/13.jpg)
Real-Time Smoothness TechnologiesNot Ready/Declined Participation:
![Page 14: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/14.jpg)
Real-Time Smoothness Technologies
Device 1: GOMACO Smoothness Indicator (GSI)
![Page 15: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/15.jpg)
Real-Time Smoothness Technologies
Device 2: Ames Engineering Real Time Profiler (RTP)
![Page 16: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/16.jpg)
Phase II – Technology EvaluationVirtual Evaluation
Field Evaluation
Recommendations for Technology Refinement
![Page 17: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/17.jpg)
Phase II: Virtual Evaluation
0.12 5
12 5
100.0
0.2
0.4
0.6
0.8
1.0
Gain
Wavelength/Wheelbase
Wavelength Sensitivity
Roughness Indices
Vibration/Misalignment Sensitivity
![Page 18: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/18.jpg)
Phase II: Field EvaluationI-75 Widening and Reconstruction
Adel, Georgia
May 6-12, 2010
CRCP
Real-time Smoothness MeasurementsGOMACO GSI (both GSI bridge and paver-mounted)
Ames Engineering RTP
Supplementary InstrumentationPaver Vibrations / Displacements
Thanks to GDOT and The Scruggs Company
for all of your help!!
![Page 19: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/19.jpg)
Phase II: Field EvaluationReal-time Smoothness Measurements
Paver-mounted GSI and RTP
GSIRTP
![Page 20: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/20.jpg)
Phase II: Field EvaluationReal-time Smoothness Measurements
GSI Machine
![Page 21: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/21.jpg)
Phase II: Field EvaluationReal-time Smoothness Measurements
GSI Machine
Sensors
![Page 22: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/22.jpg)
Phase II: Field EvaluationSupplementary Instrumentation
Paver/Sensor Vibrations / Displacements
![Page 23: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/23.jpg)
Phase II: Field EvaluationPaving Process Documentation
Notes (800+), Photos, Video
In front of the spreader
In front of the paver
Behind the paver
![Page 24: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/24.jpg)
Phase II: Field EvaluationIn front of the spreader
![Page 25: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/25.jpg)
Phase II: Field EvaluationIn front of the paver
![Page 26: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/26.jpg)
Phase II: Field EvaluationBehind the paver
![Page 27: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/27.jpg)
Hardened Concrete Measurements
![Page 28: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/28.jpg)
Reference MeasurementsSurPRO Profiler
High-speed Inertial Profiler (GDOT ICC)
![Page 29: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/29.jpg)
Phase II: Technology EvaluationIdentify Construction Artifacts
Spectral Analysis
Cross-Correlation
Continuous IRI Reporting
![Page 30: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/30.jpg)
Rough Trackline
![Page 31: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/31.jpg)
Rough Trackline
508+50 509+00 509+50Distance (ft)
-600
-400
-200
0
200
400
600
Elevation (mils)
![Page 32: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/32.jpg)
Rough Trackline: Roughness Profile
507+00 508+00 509+00 510+00 511+00Distance (ft)
0
50
100
150
Roughness Profile (in/mi)
![Page 33: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/33.jpg)
Stringless Guidance SystemTotal Stations
Prisms
![Page 34: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/34.jpg)
Stringless Guidance System
-200
0
200Elevation (mils)
491+50 492+00 492+50 493+00 493+50Distance (ft)
-200
0
200
at the pan
behind hand finishers
![Page 35: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/35.jpg)
Stringless Guidance System
![Page 36: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/36.jpg)
Stringless Guidance System
492+20 492+40 492+60 492+80 493+00 493+20
Distance (ft)
20
40
60
80
100
120
140
160
Roughness Profile (in/mi)
at the pan
behind hand finishers
![Page 37: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/37.jpg)
Reinforcement Rebound
Transverse Barsspaced 3 ft c-c
![Page 38: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/38.jpg)
Reinforcement Rebound
493+50 493+60 493+70 493+80 493+90 494+00Distance (ft)
-40
-30
-20
-10
0
10
20
30
40Elevation (mils) Every 3 feet
![Page 39: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/39.jpg)
Pan Motion
![Page 40: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/40.jpg)
Pan Motion
0 100 200 300 400 500 600Time (sec)
0
.1
.2
.3
.4
.5
.6
.7
Vertical Acceleration (g)
![Page 41: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/41.jpg)
Pan Motion
![Page 42: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/42.jpg)
Phase III: Technology DemonstrationField Demonstrations
Around the country
Different contractors
Different paving equipment
Different types of concrete paving
Technology Evaluation
Draft Specifications and Guidelines
![Page 43: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/43.jpg)
Project SchedulePhase I: Technology Review
COMPLETED in 2009
Phase II: Technology EvaluationField Testing COMPLETE: May 2010
Virtual Testing and Reporting Underway
Complete Fall 2010
Phase III: Technology DemonstrationField Demonstrations in 2011
![Page 44: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/44.jpg)
Project Deliverables
Document field data and performance of existing devices
Draft Model Specifications
Draft Guidelines
Immediate Implementation!
![Page 45: AASHTO Subcommittee on Construction 2010 Summer Meeting Burlington, Vermont, 18 August 2010](https://reader035.fdocuments.us/reader035/viewer/2022062315/5681548a550346895dc29a50/html5/thumbnails/45.jpg)
Questions?