intelligent compaction workshop hosted by isap 2012 supported by

www.ISAP2012.net

Intelligent Compaction Workshop

Hosted by ISAP 2012 Supported by US FHWA

8:30AM to noon, May 22, 2012, Nanjing, China Background Intelligent compaction (IC), also known as Continuous Compaction Control (CCC), is an evolving technology to maximize the compaction effort using vibratory rollers that equipped with roller-integrated measurements, global positioning system, onboard report system, and, optionally, auto-feedbacks. The IC technologies are proven and demonstrate immediate benefits to agencies and contractors alike. For heavy duty asphalt pavements, IC can be used to provide adequate compaction in order to optimize asphalt densities for supporting heavy loading. This workshop will guide the attendees along the shortest path to IC implementation by overcoming gaps and barriers through streamlined strategies.

Purposes Familiar attendees with fundamentals of intelligent compaction Demonstrate real world applications of IC Demonstrate latest IC machines and systems Demonstrate the shortest route to successful IC implementation.

Presenters

Dr. George Chang, P.E., Transtec Group, USA Dr. Yuki Tsukimoto, Sakai, Japan Mr. Ralf Schroeder, Wirtgen/HAMM, Germany Mr. Charles Zao, Trimble, China Mr. Jeroen Snoeck, Trimble, USA Mr. Lee Gallivan, US Federal Highway Administration (FHWA), USA

Agenda Sessions Topics Presenter Length (min.)

1 Fundamentals of Intelligent Compaction Chang 40 2 Sakai IC System Tsukimoto 40 break 10

3 HAMM IC System Schroeder 40 4 Trimble IC System Zao/Snoeck 40 break 10

5 Standardization of IC Lee 30 Total 210

Contact Workshop Presentation: Dr. George Chang., PE, Transtec Group, 6111 Balcones Drive, Austin TX 78731, USA, (512) 451-6233, [email protected], www.IntelligentCompaction.com Sponsorship/Exhibition: Dr. Chunying Wu, Principal Engineer, Jiangsu Transportation Research Institute Co., Ltd, (China) (86-25)86575445, [email protected] and [email protected]

Session No. 1Fundamentals of Intelligent Compaction

1

ISAP 2012Intelligent Compaction

WorkshopNanjing, ChinaMay 22, 2012

Session No. 1 Fundamentals of Intelligent

Compaction

By

Dr. George ChangTranstec Group, USA

Grade Control

Paving Control

Fleet ManagementSite Positioning

CloudComputing

Intelligent Construction

Intelligent Compaction

Courtesy of Trimble

Intelligent Compaction

Continuous Measurement System

Global Positioning

System (GPS)

Onboard Report System

Courtesy of Bomag


2

Why Intelligent Compaction?Shortcomings in the Compaction Process…

Limited “On The Fly” Feedback

Over or Under-CompactionCan Occur

Why Intelligent Compaction?Shortcomings in Density Acceptance Process…

Limited Number of Locations

After Compaction is Complete

100 % Coverage

1 / 1,000,000

Courtesy of Trimble/Caterpillar

Sampling Coverage


3

Single Smooth Drum Rollers

Bomag

CaterpillarAmmann-Case

Dynapac Sakai

HAMM-Wirtgen

Tandem Drum IC Rollers

Bomag

Caterpillar Sakai

HAMM-Wirtgen

Sakai Double Drum IC System

Temperature Sensor

GPS Radio/Receiver

Control Panel

Accelerometer CIS Display


4

HAMM Double Drum IC System

Accelerometer

GPS Receiver

HCQ GPS Navigator

Temperature Sensors Control Panel

Retrofit Double Drum IC RollerConventional Rollerwith Trimble Retrofit

Printer

Control BoxGNSS Receiver

TemperatureSensor

TemperatureSensor

Courtesy of Trimble

HAMM Asphalt HCQ System

Courtesy of HAMM/Wirtgen


5

CaterpillarCMV, MDP

DynapacCMV

BomagEVIB

SakaiCCV

Ammannkb

Roller Measurement Values

HAMM/WirtgenHMV

Compaction Meter Value CMV

modified from Thurner and Sandström 1980

A

AC CMV 2

Compaction Control Value CCV

Courtesy of Sakai


6

Roller Integrated Stiffness Kb

ks ks

Fs Fs

Zd Zd

zd

csks

mf

ksuspcsusp

fe(t)

zf

Equivalent frame weight

Suspension stiffnessand damping

Drum weightand dynamicforce generated

Soil stiffnessand damping

md

FsCourtesy of Ammann

Vibration Modulus Evib

B

Lln8864.1

2

L

F

E

-1 z s

VIB

2

d

Courtesy of Bomag

De-Coupled - Layer Moduli

Courtesy of Bomag


7

Bomag Auto-Feedback

Courtesy of Bomag

In-Situ Tests for HMANG

PSPA

NNG

LWD-a

Correlation with In-Situ Testing

Courtesy of David White


8

GPS Precisions• Autonomous:10 -15m

• DGPS: 0.5 - 5m

• Float : 1 m

• Fixed :1-3 cm

Courtesy of Trimble

Not to scale

GPS Accuracy for IC

Unspecified Source

1234

ICPass

Counts

Poor GPS Good GPS

Onsite GPS Base Station System

Connectedby Radio Link

GPS Base StationGPS Rover

Roller GPS Radio/Receiver


9

GPS Onsite Verification

IC Data Managementwith Veda

Point Tests andIC Data


10

ICMV vs LWDSakai CCV

LWD

Compaction Curve

Optimal Passes

Target Value

WisDOT TB 01ABase Course

HMA Map Subbase Map

CCVSubbase (a = 0.6 mm, f = 2500)

0 5 10 15 20 25

CC

VH

MA (

a =

0.6

mm

, f = 3

000)

0

5

10

15

20

25y = 2.45 ln(x) + 2.3R2 = 0.69

CCVSubbase (a = 0.6 mm, f = 2500)

0 5 10 15 20 25

CC

VH

MA (

a =

0.6

mm

, f = 3

000)

0

5

10

15

20

25y = 2.45 ln(x) + 2.3R2 = 0.69

Sakai IC roller

Mapping Subbase

MnDOT IC TB01


11

HMA Map SubbaseMap

PrematureFailure

MnDOT IC TB01

Improved Rolling Pattern

SakaiIC roller

INDOTTB 04

Uniformity

TB 03B SMA overlay (distance 0 to 684 m)

140

160

180

200

220

240

260

280

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

0 50 100 150 200 250 300 350 400 450

Lag Distance

0

5

10

15

20

25

30

35

Va

riog

ram

Direction: 0.0 Tolerance: 90.0Column L: CCV

Nugget=16.5

Sill=28.5

Range=40

SAKAI CCV Surface Temperature

Semi-variogram - exponential model

MD SHATB 03B

Sakai IC Roller


12

Major Benefits of IC

• Identification of weak areas

• Improvement of roller operators’ accountability

• Improvements of rolling patterns and consistent products

• Improve QC with 100% coverage

• Maximize productivity of the compaction process

For More Info on IC…

IntelligentCompaction.com

[email protected]

Website

Email

(512) 451-6233

Phone

Session 2Sakai IC System

1

Sakai IC-System: CIS“Compaction Information System”

For Innovative Compaction QC Method of HMA Pavement

Dr. Yuki [email protected] Heavy Industries, Ltd.+81-3-3434-3401

ISAP 2012, Intelligent Compaction

WorkshopNanjing, China

May22, 2012

Session 2

Introduction of Sakai CIS:

Compaction Information System

Benefits of Sakai CIS1. Improved Qualityof HMA Pavement

5. Safety

4. Save Money & Time 3. Environment Friendly

2. Less Maintenance Cost

CIS

100% & Real time measurement for * Mat temperature * Roller passes* ICMV (CCV)

Less CO2 gas by efficient rolling

Minimal QC inspectors during rolling

Less fuel, money & time without useless roller pass

Uniform & Sufficient compaction CCV Proof Rolling


2

Temperature sensor

GPS & Radio

Controller

Interface box

USB

Aithon MT

Display computer

Software (Office)

Create project filesInput coordinates,project name, etc.

Data managementAnalysis, documentation

Aithon PD, AutoCAD

HMA compaction

Soil compaction

GPS & Radio(Base )

“CIS” Compaction Information System

Aithon PD,Stand alone

CAD 3D or 2D

Sensors mounted on Roller

CCV

Accelerometer

Sakai IC-Roller

GPS & Radio Display

Interface box

CCV controller

Temperature sensor

Accelerometer

Color Coded On-Board Display

Reference of color coded indication

Zoom in/out

Data import/export

Start Measurement

Pause

End

Current data indications

Roller symbol

Status of signal transmissions of GPS & CCV

Roller passes CCV: Compaction

Control Value Mat temperature


3

Software

“Aithon PD”, AutoCAD3D-AUTO CAD Compatible

Design, data management, data analysis & documentation.

Display; “Aithon MT”Monitor data & project data

management.

“Aithon PD”, Stand aloneData management, Analysis

& documentation.

Office Software

Temperature Sensor(Non contact infrared)

Mat surface temperature

Fan & filter protecting sensor from dust and moisture

Sakai ICMV; CCV(CCV: Compaction Control Value)

ＲＳ２３２ＣＩ／ＯＤＩＳＰＬＡＹＳＥＮＳＯＲ

車両アース

０２５５０７５１００

１５

２０

３０

２５

５１０

TIME

(sec)×

b

０２５５０７５１００

１２×

× ５..

×

００

１

Ｃ

Ｈｚ

ＣＶ

ＣＡ

× ２.０

×

×Ｌ３

a×

a× b×

車両電源24Ｖ

ControllerAccelerometer

LED display (OPT)

ICMV; Intelligent Compaction Measured Values named by FHWA.

Compaction index processed by drum acceleration.


4

CCV FormulaCCV increases with an increase of pavement density and/or stiffness.

3.0 3.1 3.2 3.3 3.4 3.5-15

-10

-5

0

5

10

15

20

時間 (秒)

加速

度 (G)

3.0 3.1 3.2 3.3 3.4 3.5-15

-10

-5

0

5

10

15

20

時間 (秒)

加速

度 (G)

A2

A 4

振動数 (Hz) 振動数 (Hz)

振幅

スペ

クト

ル

地盤の状態軟い固い

A1

A2

A3

A5A4

A6振幅

スペ

クト

ル

f01/2f0 3/2f0 2f0 5/2f0 3f0f0 2f0

10031

65431

AA

AAAAACCV

FFT analyzerFormula

Accelerometer

Soft CompactedStiffnessFrequency Frequency

Am

plit

ude

spec

trum

Am

plit

ude

spec

trum

Acc

eler

atio

n (G

)

Acc

eler

atio

n (G

)

Time (sec) Time (sec)

Various IC Systems

N one

Yes(2& 3D )

Y es

Yes(2& 3D )

N one

N one

CAD

Compatib ility

M N /m 2YesEvibBomag

M N /m 2YesAlfaO bayashi-

Maeda

M N/mYesksA mmann

N oneYesCCVSakai

N oneYesC M VD ynapac

N oneYesC M VCaterp illar

M easurement and Analyzing methodUnitA ccel

erom eter

IC sy stem

Vendors

N one

Yes(2& 3D )

Y es

Yes(2& 3D )

N one

N one

CAD

Compatib ility

M N /m 2YesEvibBomag

M N /m 2YesAlfaO bayashi-

Maeda

M N/mYesksA mmann

N oneYesCCVSakai

N oneYesC M VD ynapac

N oneYesC M VCaterp illar

M easurement and Analyzing methodUnitA ccel

erom eter

IC sy stem

Vendors

A

mmdfks tr cos

4 22

A

ACCM VGeodynamik 2

bm Vg

aW VPMD P

g

sin

A

AlueBouncingVa 5.0

A

ACCMVG eodynamik 2

1005.0

35.225.15.0

AA

AAAAACCV

gmmFSS

SSFt i i

ii

)('

'

21

00

3

1

3

1

2

21

2

2

2

02

)(1

164.11024.032.01

)2(134

)1(2

gmm

F

mfFt

BE

L

F

E

RBw here s

V IB

2116

,

B

L

L

F

EZ t

VIBa ln886 4.1

21 2

CIS Setup & Operation Flow

Install GPS, Radio & CIS on RollerInput GPS Antenna Position

Setup GPS Base Station & Radio

Setup Communication at CIS

Create Project Data File at CIS

Start/Stop Measurement / Export Data to USB stick at CIS

Switch off CIS, Roller, & GPS

First day to use After Second day to use

Switch on GPS, Roller & CIS

Select GPS Baud rate & check signal reception

Create Project data file, Select UTC time & Geographic Coordinate, etc.


5

RTK-GPS & RadioGPS Receiver Radio Antenna

RTK (Real Time Kinematic) accuracy of 1-2 cm in horizontal & 3-6 cm in vertical direction.

A set of GPS in base and on the roller is needed.

GPS＆Radio Receiver

GPS Antenna Radio

GPS Base Station

Create Project Data File either at CIS Display or at Office

Examples of IC Test Results

Conducted by Sakai


6

Mat Temp. in 1st Breakdown Pass 60

140

Mat temperature only at the first passes were indicated.

Breakdown rolling began below a required mat temp. of 120 oCin a 1/4 of a total rolling area.

Extremely low Temperature areas

Mat Temp. Distribution Measured by Thermo Camera

Density & Mat Temp. vs. Time

0

20

40

60

80

100

120

140

160

0:00 0:14 0:28 0:43 0:57 1:12 1:26 1:40

時間

碾压温度 (

oC)

80.0

85.0

90.0

95.0

100.0

105.0

密度比

(%)

Mat

tem

pera

ture

(o C

)

Per

cent

of

TM

D

Time (hr.min)


7

Time Available for Compaction (Quiz, What’s time to cool to 80 oC?)

Niju, itsutsu, yattsu, mittsu

A B C D

Layer thickness mm 50 25 50 25

Mix

Air

Base

Wind velocity km/h

Time to cool to

80 oC

min ?? ? ? ?

8

5

5

8

Temperature

(oC)

Example

150 125

15

15

120

Mat Temp. & Time Available for Compaction

Layer thickness: 50/25mm Laydown temp.:150 oCAmbient temp. 15 oCWind: 8 km/h

Layer thickness: 50/25mm Laydown temp.:120 oCAmbient temp. 5 oCWind: 8 km/h

CCV Distribution of Subbase

Low CCV area

0

100

Stiffer subbase, longer life of pavement!


8

Sakai First IC Trial in CA, USA, 2006

100% Measurement of Roller Pass in CA, 2006

“Intelligent Compaction, Does it IC exists?”, J. Sherocman, S. Rakowski and K. Uchiyama, Canadian Technical Asphalt Association (CTAA), 2007.

Shoulder side

Longitudinal joint

Sakai 2nd IC Test in FL, USA, 2008


9

CCV Correlates with Density“Does IC exists?”, J. Sherocman, S. Rakowski and K. Uchiyama, CTAA, 2008.

FHWA/TPF Demonstration

Projects

Visit “Intelligentcompaction.com”

FHWA/TPF IC Demonstrations

CA: 2010.11

Sakai participated at 13 demos out of 16 in 13+1(CA) States between 2008 and 2010.

2011.5


10

FHWA/TPF IC Demos, 2008




11

New HMA pavement constructed over soft subbase was destroyed by a mix haul truck.

Ex.1; Broken HMA Pavement on Soft Subbase in Minnesota, ‘08

Ex.2; Improved Uniformity of Roller Passes in Indiana, ‘09

By using the CIS, uniformity of roller passes were drastically improved.

Before use of CIS

After use of CIS

Ex.3; Night Paving Application in Wisconsin, ‘10

Even in night paving, the required mat temperature & roller passes were maintained by the CIS.


12

“Improved Quality Control of Hot Mix Asphalt Paving Using Intelligent Compaction Technology”, B. Horan, G. Chang, Q. Xu, and L. Gallivan, TRB, 2012.

CIS; Only One IC System meeting FHWA Criteria, TRB, 2012

Joint Research

by FHWA & Sakai

“Innovative QC/QA Compaction Method for HMA Pavement using Intelligent Compaction (IC) Technology”, H. Furuya, Y. Tsukimoto, H. Koseki, T. Mansell, L. Gallivan, and K. Uchiyama, ISAP, 2010.

CCV Proof Rolling Application in Tokyo, Japan, 2010

IC roller with Total Station System (TSS) for proof rolling application to subbase.


13

Find Target Spots by CCV Map Stiffness was measured by a falling lightweight

deflectometer (LWD) at three spots with low (<30), medium (30-40) and high (>40) CCV, respectively.

High CCV(>40)

Medium CCV (30-40)

Low CCV(<30)

Correlation of CCV & Stiffness

y = 0.1296x - 6.4726

R2 = 0.8347

0

10

20

30

40

50

60

0 100 200 300 400 500

KLWD (MN/m3)

CC

V

Low

Medium

High

Threshold: 130

HFWDKE

K

CBRE

1518.1

600400

30

R2=0.83

Statistically Guaranteed Quality of the Subbase as Industrial Products

0

5

10

15

20

25

30

5 15 25 35 45 55 65 75 85 95

CCV

Rel

ativ

e F

req

uen

cy [

%]

10 % of CCV < 10

Frequency

M＝Average

σ σ

μ-1.28σ

μ－σ μ＋σ

Consumer’s riskｐ=（μ,σ）Ｐ≦10 % Standard deviation σ

Consumer's risk: Statistic quality control criteria for industrial products

Threshold: 10


14

QC/QA Method; IC vs. Conventional

IC collects 100 % of compaction data in rolling area.

Conventional QC/QA compaction criteria: Limited number of cores and/or (nuclear) density gauge.

Method Frequency Remarks

China Core sampling 3 cores/2000 m2 with Marshall density

97% or 94%Gmm.

Final verification is 5 cores/km/directionwith represented Marshall density 96% or92% with 95% confidence

Japan Core sampling 1core/1,000 m2

USA Core sampling or Nuclear gauge 1 core/150m or 500t Stratified random sampling

Indirect density gauge 20m intervals

1core/1,000 m

1core/250m 100 mm from unsupported edge

Australia Core sampling or Nuclear gauge 1 core/30t or homogeneous section

UKBS594987, at wheel-tracks

Core sampling

IC Demo in GA, USA ’09

IC roller on GAB subbase, and HMA application

High Density, but Low CCV??

y = -8839.3x + 8469.7

R2 = 0.48950

50

100

150

200

250

300

350

400

450

0.915 0.92 0.925 0.93 0.935 0.94Gmm%

Sak

ai C

CV

(%

)

Density level achieved was almost higher than 92%. But, CCV decreased with an increase of the density.

Req

uir

ed T

MD

: 92

%


15

Depth of CCV Measurement

Soft Subgrade withhigh moisture content

Aggregate Subbase

HMA Pavement

CCV measures all the mechanical properties for three underlying layers of 0.6 m in depth from the surface. Soft subgrade with high moisture content lowered the stiffness and CCV measured on HMA pavement.

Low CCV

High Density

Low Stiffness

Depth of CCV measurement:0.6 m

?

A key to construct durable and long lasting HMA pavement is to construct stiff underlying layers.

Do You Like This Pavement?

Conclusions Sakai CIS is the proven IC Technology for HMA pavement.

CIS is helpful to construct durable pavement, because it improves;

(1) Uniformity of Roller pass,

(2) Compaction temperature of asphalt pavement,

(3) Speed of QC/QA by real time measurement, and

(4) Accuracy of QC/QA by a 100 % of CCV proof-rolling.

Paving contractors can save fuel, money and time by eliminating useless roller passes.

Next steps to move forward;

(1) Training for highway agency and paving contractors.

(2) Justify the initial investments.

Durable HMA pavement needs to be constructed over stiff underlying layers such as subbase and subgrade.


16

Contact Lists

JAPAN1-4-8, Shibadaimon, Minato-ku, Tokyo,105-0012, Japan, Sakai Heavy Industries, Ltd.Yukinori [email protected]+81-3-3434-3401酒井重工业株式会社事业推进部部长月本行則

USA

Sakai America., Inc.

90 International Parkway

Adairsville, GA, 30103

Bandon Crockett, [email protected]

+800-3234-0535, Ext 205

China

Sakai Heavy Industries (Shanghai), LTD. Room 1107,Super Ocean Finance Ctr.No.8 Xian Xia Road, District, Shanghai, 200336,

e-mail: [email protected]

TEL: 021-62196463 ,

FAX: 021-62196417

Mobile：13901729069

Wangzhu

酒井工程机械（上海）有限公司

上海长宁区仙霞路8号仲盛金融中心大厦1107室

技術支持部、部長助理；王助

电话 021-62196461

手机 +86- 13901729069

Sakai Shanghai, Plant酒井上海工厂外景

酒井工程机械（上海）有限公司

工厂在嘉定兴庆路999号

Thank you! 谢谢

Session 3HAMM IC System

1

Hamm Intelligent Compactionfor soil and asphalt

HAMM AGDipl.-Ing. Ralf Schröder

Session 3

„Close to our Customers“

ROAD AND MINERAL TECHNOLOGIES

Company Presentation

Tirschenreuth

Göppingen

Ludwigshafen

Windhagen

Berlin

Hamburg

München

Frankfurt

The Wirtgen Group in Germany


2

Langfang

Plant in China - Langfang

The Wirtgen Group Around the World

Dealer

Subsidiary

Direct distribution

HD CompactLine HD Series HD+ Series

GRW, Static rollers3000 Series, H Series DV Series

Hamm product series


3

HCQ-Indicator HCQ-Printer HCQ-Navigator Soil

HCQ-GPS Navigator

HCQ SystemOverview earthwork

TroxlerTroxlerPlate load testPlate load test Dynamicplate testDynamicplate test

Sampling (i.e. for proctor)

Sampling (i.e. for proctor)

Disadvantages:

• Punctual measurements (random check) • Time consuming• Small amount of samples• Samples mostly close to surface• Downtime of the machines

Disadvantages:

• Punctual measurements (random check) • Time consuming• Small amount of samples• Samples mostly close to surface• Downtime of the machines

Proportion of spot-testingsto the quantities placed

1 : 1.000.000

HCQ-GPS Navigator

HCQ SystemConventional spot testings


4

Why compaction measurement with the roller?Why compaction measurement with the roller?

Compaction degree (bearing capacity) can only be influenced during the compaction process

Compaction degree (bearing capacity) can only be influenced during the compaction process

Compaction and compaction measurement

in parallel

HCQ-GPS Navigator

HCQ SystemModern quality control – Continuous Compaction Control

HCQ-GPS Navigator

HCQ SystemComponents: acceleration sensor

t

t

HCQ-GPS Navigator

HCQ SystemAcceleration sensor: measurement principle


5

HCQ-GPS Navigator

HCQ SystemComponents: HCQ-Box

HCQ-GPS Navigator

HCQ SystemComponents: display unit

GNSS-Receiver

Documentation

Panel PC

HCQ-GPS Navigator

HCQ SystemComponents: HCQ-Case

Charger for Panel-PC

Universal travel adapter

Hamm USB flash drive


6

HCQ-GPS Navigator

HCQ SystemComponents: panel PC

• Only one central port

• Lockable mechanical latching

• Full metal body with touchscreen

• Safety class IP65(dust and water-proof)

• -40 ºC bis +70ºC (-40 °F to 158 °F)

HCQ-GPS Navigator

HCQ SystemPanel PC – mounting position

HCQ-GPS Navigator



7

HCQ-GPS Navigator


HCQ-GPS Navigator


HCQ-GPS Navigator

HCQ SystemComponents: D-GPS antenna


8

24 satellites on 6 orbits

Intervisibility of min. 4, ideal 8 satellites required

Accuracy: ~ 20 m

HCQ-GPS Navigator

HCQ SystemGPS accuracy

HCQ-GPS Navigator

HCQ SystemD-GPS accuracy

Correction calculation of the GPS-signals via geostationary reference stations.Correction signal transmitted via communication satellites to D-GPS-receiver (rover).

Accuracy: 5 – 10 cm

HCQ-GPS Navigator

HCQ SystemDocumentation – compaction data and position


9

HCQ SystemSoftware – split screen

HCQ-GPS Navigator

HCQ SystemSoftware – operator mode

Operator

HCQ-GPS Navigator

HCQ SystemHCQ-GPS Navigator – quality control for earthwork


10

HCQ-GPS Navigator

HCQ SystemHCQ-GPS Navigator – HMV values

HCQ-GPS Navigator

HCQ SystemHCQ-GPS Navigator – quality without calibration

Min. 9 – 12 measuring spots

good

bad

HCQ-GPS Navigator

HCQ SystemHCQ-GPS Navigator – reliability with calibration


11

HCQ-GPS Navigator

HCQ SystemHCQ-GPS Navigator – reliability with calibration

HCQ-GPS Navigator

MN/m² %

HCQ-GPS Navigator

HCQ SystemDifference between earthwork and soil


12

Passes 431 2 5 6 7 8 >8

Up to 15 passes

Up to 13 passes

1 pass

1-3 passes

Specified:8 Passes

Achieved ∅:5,7 Passes

HCQ-GPS Navigator

HCQ SystemConsistent number of passes?

HCQ-GPS Navigator

HCQ SystemDocumentation – passes, temperature and position

HCQ-GPS Navigator

HCQ SystemVibratory, Oscillatory and static rollers


13

Passes Temperature

HCQ-GPS Navigator

HCQ SystemOperator information

HCQ-GPS Navigator

HCQ SystemHCQ-Asphalt Navigator – quality by consistency

Thank you!

Session 4Trimble IC System

1

Introduction Trimble

Charles Zhao

Trimble China

Session 4

Trimble Overview

Public Company ( NASDAQ: TRMB)

Global Company– Over 3500 employees worldwide

– Branches and offices in 20 countries

– Manufacturing and R&D in North America, Europe and APAC

– Extensive worldwide exclusive dealer channel

High-tech Company – Average annual R&D expense 10% of the revenue

– Over 800 patents currently held worldwide

Trimble in China

Shanghai Headquarter

Beijing Company

APACI Training, Support

and Service Center

R&D Center

Factory

Procurement Center

Quantm Qingzheng Technology Ltd.


2

FirmwareApplicationsBack office integrationEnterprise wide solutionsInternet hosted solutions

CellularRadioBluetoothSatelliteWiFi

GPS/GNSSLaserOpticalInertialVRS™ GNSS reference station3D scanningSpatial image

Communication

Information

Position

Trimble Technology

Trimble Digital Construction

?

Grade / Compaction Systems

Paving ControlSystems

Fleet ManagementSystems

Site Office / Supervisor Solutions

Multi-Site Solutions

Site Positioning Systems

Trimble CCS900 for Asphalt Compactors

Jeroen Snoeck

Trimble Navigation Ltd


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Trimble covers all phases of the road construction site: New Roads

Measure Design

Bulk Earthworks

Pave Fine/Base Grading

New roadsFrom initial survey to finish surface Compact

Compact

Measure

Pave

Mill

Compact

Design

ResurfacingFrom initial survey to finish surface

Trimble covers all phases of the road construction site: Road Resurfacing

How to achieve asphalt layer density

Compaction Sensors are problematic in assessing density of only the asphalt layer at hand– Compactors measure deeper than handheld

density sensors

– Stiffness measured varies with asphalt temperature


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How to achieve asphalt layer density

A better method is:– Determine Number of

Pass Counts required to achieve density on a test strip

– Have the compactor consistently achieve the target number of pass counts within a specified temperature range

Pass 1

Pass 2

Pass 3 Etc…

Asphalt Compaction issues today:

Current compactor pass count tracking is guesswork for the operator

Pass count checkers often doing other work

Typical example of the pass count map:

PassCount


Not making your pass count target can result in over and under compaction

Which leads to:– Inconsistent density

– Premature road failure


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It’s an art for the operator to correctly judge the optimal time window for compaction

Surface temperature measurement person not measuring all the time

Possible results:

Mat too hot: Material displacement, tire marks

Mat too cold: Impact marks, fractured aggregate

Adding Science to the Art of Compaction

Better Info to the Operator =

Better Surface

The Trimble CCS900 system provides: – Pass count maps

– Real-time temperature maps

– Reports of compaction performance

Printer

Control Box GNSS Receiver

Trimble Compaction Control System

TemperatureSensor

TemperatureSensor

Other options:- Higher GNSS accuracy- As-built mapping- Office Software for Analysis


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Trimble CCS900 Pass Count Mapping

Provides a tool to the operator to consistently achieve target pass count

Increase productivity by taking the most efficient rolling pattern and by reducing over compaction

Trimble CCS900 Temperature Mapping

Provides a tool to the operator to stay within a defined min and max temperature value

Results in higher quality roads

Reporting On Machine

Print in-field with thermal printer for sign-off and approval

On-machine validation of final compaction runs


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Reporting Off Machine: Pass Count Map

Reporting Off Machine: Cut Fill Map

Trimble CCS900 – How it differs Uses Standard Machine Control Components

– Can be transferred between many machine types

– Increases return on investment


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Trimble CCS900 – How it differs

After market installation– Can be installed on any

compactor from any manufacturer

– Used and new machines

Trimble CCS900 – How it differs

Office Software and wireless technology– Connect wirelessly to a web-based analysis

tool

– For analysis of data

– Archival of data

Trimble CCS900 – how it differs

Expertise and support– Many compaction solutions

struggle with: Rugged, daylight readable displays,

computers

Setup for GNSS, radio communications

Local coordinate systems

Design data

Office software solutions

– These are Trimble and SITECH dealer core competencies!


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Demo using simulator…

Summary of the benefits Quality Control by operator and

supervision– Through in-field reporting and

office synchronization

Improved layer quality– By taking the guess work out Operator can verify if pass count

targets has been achieved within the appropriate temperature window

Increased rolling productivity, lower O&O cost

– By reducing over compaction– By optimizing the rolling pattern

Thank you

Session No. 5 Standardization of IC

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ISAP 2012Intelligent Compaction

WorkshopNanjing, ChinaMay 22, 2012

Session No. 5Standardization of Intelligent

Compaction

By

Victor (Lee) GallivanFHWA, USA

Components of IC QC/QA Spec

1. Approval of IC Equipment

2. IC Data Requirements

3. Quality Control Plan

4. GPS/Datum Requirements

5. Test Sections and Target Values

6. QC/QA for Production Areas

7. IC Data Submittal

8. Payment and Measurements

1. Approval of IC Equipments

• Continuous Measurement System

• RTK GPS

• Onboard Reporting System


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2. IC Data Requirements

• Compatible with Standardized IC Software (Veda)

• Headers• Manufacturer

• Machine Type

• Machine Model

• Drum Width

• Drum Diameter

• UTM Zone…..

• Data Blocks• Date/time stamp

• Long/Lat

• Easting/Northing

• Pass Counts

• Speed

• Frequency

• Amplitude

• Temperatures

• IC Measurement Values

IC Analysis with Veda

3. Quality Control Plan

• Contract-Specific Quality Control Plan (QCP)

• Signed by Contractors

• Accepted by DOTs

• Implementation of QCP• QCP Field Manager

• Quality Control Technician


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4. GPS/Datum Requirements

• Datum Designation/Conversion

• GPS Checks

GPS Checks

5. Test Sections/Target Values

• Dimension of Test Sections• E.g., 75 m X 6 m for soils

• 300-500 Tons for HMA

• Evaluation for Each Lift Materials with cores

• Fixed Settings of IC Compaction

• Determination of Target Roller Passes and IC-MV


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QC Target Values

Optimal pass

Target ICMV

ICMV<5%

QA Target Values

ICMV

Target ICMV

Target % Gmm

% Gmm

6. QC/QA for Production Areas

• Mapping of Existing Support

• QC for Production Compaction• Coverage

• Percent Requirements Meeting Target Values

• Acceptance for Production Compaction• Based on Agency’s Current Requirements


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Statistics of IC-MV

7. IC Data Submittal

• Daily Data Submittal

• Native IC Data

• Exported IC Data• All Passes Data

• Proof Data

Courtesy of Bomag


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All Passes and Proof IC Data

Courtesy of Sakai

…………..

…………..

N

E

Pass No. =1

Pass No.=2

Pass No.=3321

Legend of Pass No.

IX X

VII VIII

V VI

III IV

I II

•I, V and IX are same coordinate.•II, VI and X are same coordinate.•III and VII are same coordinate.•IV and VIII are same coordinate.

All passes data Proofing data only

8. Payment and Measurements

• Lump Sum Payment• Itemized Payment

• Weekly IC Equipment Rental• Hourly Rate for Roller Operator

• Measurement• No. of calendar weeks roller furnished

• Unauthorized Work• Compacted materials are unauthorized without

QC data

Keys to Success

• Passion • IC Champions within Agencies

• Patience• It Takes Time!

• Communications• Among Agency, Suppliers, Contractors, and

Consultants

• Strategies• Start with Low-Hanging Fruits


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For More Info on IC…

IntelligentCompaction.com

[email protected]

Website

Email

(512) 451-6233

Phone

intelligent compaction workshop hosted by isap 2012 supported by

Documents