future of construction: intelligent compaction · intelligent compaction by dr. george k. chang,...
TRANSCRIPT
Future of Construction:Intelligent Compaction
ByDr. George K. Chang, PE
Director of Research, Transtec Group
Outlines
• Intelligent Compaction (IC) • Veta for Data Management• US National Implementation• Benefits of Using IC• Future Development and Further Information
Intelligent Compaction
OEM IC Systems
Example IC Retrofit System
GX-60
GPS Antenna
Infrared Temperature
Sensor
MCi-3 and Satel Radio
AccelerometerCourtesy of Topcon/RDO
控制系统 参数/指标
?
Control System ICMV
AccelerometerRoller Drum
Compacted Materials
Compaction &reaction force
correlation withmaterials modulus & density
Intelligent Compaction Measurement Values (ICMV)
Speed
FrequencyAmplitude
Vibration
Eccentric forces
ICMV
TemperatureMix proportioning
Soils type and Moisture Content
Support Condition
Various ICMVs
Asphalt Density vs ICMV (Stiffness)
GPS Validation AASHTO PP81 Diff < 6 in.
Temperature sensor validationAASHTO PP81 Diff < 5°F
Example IC Color-Coded Displays
Roller Passes Asphalt Temperature ICMV
Spot Tests and GPS Data
Daily Production Boundary
Alignment File – KMZ, LandXML
Courtesy of MnDOT
Veta for Data Management
Standard ICDM Software - Veta
17
IC/PMTP data
Spot test data
Data Export
Vendor’s cloud Server
ManualUSB
Manual
Automatic
USB, email, etc.
Vendor’s cloud Server
AutomaticWireless
Transmission
Manually “Push”
userlog-in for access
Project and Machines IDssetup
Ungriddedor gridded data files
Storage time
IC/PMTP data
Veta IC Analysis
20
IC Data Analysis
Veta Analysis – Coverage of Target Passes
Target ICMV from Trial Section Data
ICM
V
Target ICMV
Target % Gmm
% Gmm
PassingR > 0.7
OrR2 > 0.5
Target ICMV for QC
Optimal pass
Target ICMV
∆ICMV<5%
Veta Analysis – Coverage of Target ICMV
National Implementation
A BRIEF HISTORY OF IC IN US
2004 2006 2008 2010 2012 2014 2016 2018 2020
FHWA IC Road Map FHWA
IC Spec
AASHTO IC Spec
NOVA Award
HfL IC Study
TPF-5(128) study
EDC IC Support
IC & Asphalt Density Study
TPF-5(334) study
NCHRP21-09Study
NCHRP24-45Study
IC Retrofit Study
IC Retrofit Study
????
FHWA Tech Brief
US National IC Guide Specs
AASHTO PP 81-17 & Data Spec.FHWA Soils/Asphalt IC
US DOT IC Specs
CA
AZ
CO
NM
TX
OK AR
LA
MO KY
AL GA
FL
VA
OH
MI
VTAK
VI
MT
NV
Guam
MEWA
OR
UTKS
IDWY
ND
SD
MN
NE
WI
IAIL IN
MS
TN
SC
NC
WV
PA
NY
CTNJDEMD
PR
HI
NHMARI
Asphalt Soils
Asphalt + Soils
DC
No
US Dot IC projects
Limited survey 2017
MnDOT IC Implementation plan
2014(10%)
2015(10-15%)
2016 (40-50%)
2017 (50-75%)
2018(100%)
% of MnDOT Projects meeting project selection requirements.
Benefits of Using IC
15 ftJoint spacing
Centerline
HMA OverlayLift 1
Identify Underlying JointsPCC Joints CMV
Courtesy of MNDOT
Improved Rolling Pattern
After the Blind Test
TPF IC Study – IN Site
Courtesy of MNDOT
Improved Consistency
Improved Roller CoverageFirst Time Use of IC
Identify Causes of Failed Density
Turn off VibToo Early
ConsistentVib Thru Out
Courtesy of MnDOT
Failed
Passed
Future Development &Further Information
Level 1
ICMV Road Map
Level 2Level 3
Level 4Level 5
Advancements of ICMV
Artificial Intelligence
Continuous Compaction Control
AdvancedIntelligent
Compaction TechnologyAutonomous Roller
True Intelligent IC
TPF-5(334) ICDM-Veta Pooled Fund Study
Connected Sites
Courtesy of Trimble
IntelligentCompaction.com
IICTG.org
International Intelligent Construction Technologies Group
Thank You!
Dr. George K. Chang, PEDirector of Research, Transtec Group
IntelligentCompaction.ComIntelligentConstruction.Com
IICTG.Org