North Carolina Asphalt IC Demonstration

US-70 in Wayne County, NC (August 18-19, 2014)

On-Site Personnel

First name Last name Affiliation Telephone Email FHWA IC Project Team George Chang Transtec Group 512-659-1231 gkchang@thetranstecgroup.com Lee Gallivan FHWA 317-605-4704 Victor.Gallivan@dot.gov Bob Horan Asphalt Institute 804-539-3036 bhoran@AsphaltInstitute.org FHWA NC Jim Philips FHWA-NC Jim.Phillips@dot.gov Bradley Hibbs FHWA-NC Bradley.Hibbs@dot.gov State DOT Lamar Sylvester NCDOT 919-707-2400 lsylvester@ncdot.gov Nilesh Surti NCDOT 919-707-2403 nsurti@ncdot.gov Todd Whittington NCDOT 919-329-4060 twhittington@ncdot.gov Richard Burley NCDOT 919-707-2426 rburley@ncdot.gov Corey McLamb NCDOT 919-934-5863 cdmclamb@ncdot.gov Chunkun Su NCDOT cksu@ncdot.gov Brandon Herring NCDOT-D4 919-868-8953 blherring@ncdot.gov Johnson Philip NCDOT pjohnson@ncdot.gov Vendors Tim Kowalski Wirtgen/Hamm 615-594-4604 tkowalski@Wirtgenamerica.com Ed Conlin Sakai America 770-238-6755 e-conlin@sakaiamerica.com Josh Steele Sakai America 770-877-9433 j-steele@sakaiamerica.com Jim Preston TopCon 614-479-4817 jpreston@topcon.com Paving Contractors Scott Clement S. T. Wooten 919-291-0422 scott.clement@stwcorp.com Reed Dawson S. T. Wooten(paving) Chris Croon S. T. Wooten(QC)

Andy Brown S. T. Wooten (paving super)

Paving Association

Project webpage: (http://www.intelligentcompaction.com/projects/2012-2014-fhwa-hma/2014-field-projects/North%20Carolina-ic-demo-2014/)

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Main Contacts

• FHWA IC project: Dr. George Chang, FHWA IC team.

• Field Visits: Scott Clement, S. T. Wooten

• DOT Project Manager: Corey McLamb, NCDOT

• Roller Shipment: Shipping address: ST Wooten Field Office, 387 NC 581 North, Goldsboro ;

Contacts: Scott Clement, S. T. Wooten (919-291-0422); ETA: Friday, Aug. 15, 2014

Responsibilities

FHWA IC Team • IC training,

• Field data collection/analysis,

DOT • Personnel to be trained on IC,

• Arrangement for personnel and equipment for FWD test, (tentative)

• Arrangement for personnel and equipment (2+ rigs) for coring,

• Personnel and equipment for bulk density tests for cores.

Paving Contractor • Personnel to be trained on IC,

• Two IC roller operators,

• Mobilization of IC rollers onsite and to Open House,

• One density gauge and an operator,

• Arrangement for personnel and equipment (2+ rigs) for coring,

• Fuel and water for IC rollers.

Roller Vendors • IC Training (esp. IC operation, data collection and transfer),

• Technical support during field demo,

GPS Vendor • GPS rover and an operator,

• GPS training and technical support during field demo,

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Site Map This project is a day-time paving job located at US-70 from West of NC-581 to SR-1300 (Salem Church

Road) in Wayne County, NC. The project length is 5.90 miles.

The R-2554A project is the fully state-funded $62.4 M western tie-in for the US 70 Goldsboro Bypass

corridor. The mainline is a 4 lane divided facility that totals almost 6 miles in length. There is significant

Y line work as well, including 3 new SRs to be constructed, an interchange to build, a flyover western tie-

in to US 70, and a complicated eastern tie-in to both I-795 and a previously constructed segment of the

Goldsboro Bypass that has two ~50’ tall MSE walls and two bridges in a double-decker pattern.

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Pavement layers The target layer construction for this FHWA IC study will be on the base course or intermediate of the asphalt layers.

The following is typical section:

Typical materials used is asphalt concrete base course, Type RB 25.0B, RP25 – RAP Mix 25% with PG 64-22.

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Onsite Safety

Contact Scott Clement, S. T. Wooten (919-291-0422), for any onsite visits.

DOT and Contractor require all onsite participants to observe safety rules:

o Ingress and egress to and from the work zone, vehicles shall be equipped with yellow flashing lights.

o Location to park vehicles.

o Location for people to safely observe operations.

o Adequate PPE provided for all personnel within the work zone (required: safety vests, optional: hard hats, working gloves, safety glasses, steel toed boots, etc.).

o Suggest carpool to the job site.

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On-site Activities Schedule Activities Day 0 Sunday (Aug 17)

• Conduct IC rollers/GPS setup and trial runs (equipment vendors and FHWA IC team only) at the staging area. (2PM-5PM)

Day 1 Monday (Aug 18)

• Set up the GPS base station and IC roller/GPS system (by 7AM). • Conduct project briefing at the staging area and IC training for roller

operators (7AM-7:30AM). • Start paving with one IC roller at breakdown and another IC roller at

intermediate position. • Select a 500-ft section as a test strip to establish the rolling pattern.

Conduct NG/GPS testing immediately behind the paver and at selected locations after each breakdown and intermediate roller pass within the test strip.

• Perform production compaction using the rolling pattern. • Conduct NG/GPS at selected locations after the finishing rolling

Day 2 Tuesday (Aug 19)

• Set up the GPS base station and IC roller/GPS system (by 7AM). • Start paving with one IC roller at breakdown and another IC roller at

intermediate position. • Conduct NG/GPS testing immediately behind the paver and at selected

locations after each breakdown roller pass within the 1500-ft section. • Conduct NG/GPS testing at selected locations after each intermediate

roller pass within the 1500-ft section. • After the finishing rolling, mark 60 locations within the 1500-ft paved

section. Conduct NG/GPS tests at marked locations. Conduct FWD and GPS tests at designated locations. Conduct coring at the marked locations.

• GPS: Hand-held Global Positioning System rover will be provided by TopCon. • NG: Nuclear density gauge and an operator will be provided by the contractor. • FWD: Falling weight deflectometer and an operator will be provided by DOT. • Coring: 60 X 4” cores will be taken with two + coring rigs by the contractor. • Core tests: Bulk density testing of cores will be performed by DOT.

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Test Settings

Date TB Machine Setting Spot Tests Notes/Comments

Day 1

1A IC 1

0.3mm at 4000 vpm

NG, GPS

Breakdown compaction for asphalt base course. 1. Compact with normal roller passes. 2. NG/GPS tests after each roller pass at selected locations within the test section.

1B

IC 2

Low amp at 4000 vpm

NG, GPS

Intermediate compaction for asphalt base course. 1. Compact with normal roller passes. 2. NG/GPS tests after each roller pass at selected locations within the test section.

1C Conventional Roller

Static

NA Finishing rolling 1. Compact with normal roller passes.

Day 2

2A IC 2

Low amp at 4000 vpm

NG, GPS

Breakdown compaction for asphalt base course. 1. Compact with normal roller passes. 2. NG/GPS tests after each roller pass at selected locations within the test section.

2B IC 1

0.3mm at 4000 vpm

NG, GPS

Intermediate compaction for asphalt base course. 1. Compact with normal roller passes. 2. NG/GPS tests after each roller pass at selected locations within the test section.

2C Conventional Roller

Static

NG, GPS, FWD Coring

Finishing rolling 1. Compact with normal roller passes. 2. NG/GPS/FWD/Coring tests after the finishing rolling at marked locations within the test section.

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Day 0 – IC Setup, Trial Runs, and GPS Validation • A ground-based GPS base station will be setup onsite.

• IC rollers will be fully setup and functioning.

• Brief trial runs in vibratory mode will be conducted with each IC roller.

• Data files will exported from vendors’ software or online solution and re-imported to Veda for

checking.

• Recon the job site to identify possible GPS shadows or blind spots.

• GPS Validation will be conducted via the following procedures:

1. Move the IC roller around until the GPS header computation is initialized. 2. Move the IC roller and park at a selected location. 3. Record the GPS measurements from the IC roller ensuring the distance offsets are applied so that

the GPS coordinate is at the center or at left/right edges of the front drum. 4. Mark two locations on the ground adjacent to the right and left edges of the front drum contact

patch. 5. Move the IC roller from the marked locations. 6. Use a hand-held rover to measure at the marked locations. 7. Average the rover GPS measurements if the roller GPS measurement is at the center of the front

drum. 8. The differences between the roller GPS and rover measurements shall be within ± 12 inches (±

300 mm) for northing and easting directions.

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Day 1 – Test Sections

NG(after each pass) and GPS

paving width

500

ft

paving width

Roller 1IC Compaction(breakdown)

Roller 2IC Compaction(intermediate)

paving width

Roller 3Compaction(finishing)

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Day 2 – Test Section

1500

ft

paving width

NG(after each pass) and GPS

paving width paving width

50 ft spacing

NG, GPS, Coring

FWD

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HAMM Double-Drum IC Roller

Manufacturer/ Vendor

HAMM/Wirtgen

Model Name HCQ (Hamm Compaction Quality) Model Number HD+ 90 / HD+ 110, HD+ 120 / HD+ 140 Drum Width 78" w/offset to 84.7" Machine Weight Operating wt. 27,569 lbs. w/max of 32,187 lbs. Amplitude Settings High/Low - .028/.011 in. (0.71/0.27 mm) Frequency Settings Variable from 2700 - 4020 vpm Auto-Feedback NA Measurement System HAMM Compaction Quality (HCQ) Measurement Value HMV, density estimator, temperature, passes Measurement Unit [unitless, % compaction, °C, color coded] GPS Capability Yes Documentation System

HCQ with ability to export to Veda

Contact Tim Kowalski (615) 594-4604 tkowalski@Wirtgenamerica.com

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Sakai Double Drum IC rollers

Manufacturer/ Vendor

Sakai America

Model Name Compaction Information System (CIS) Model Number SW880 Drum Width 79” Machine Weight 29,560 lbs (~ 14 tons) Amplitude Settings 0.013” , 0.025” ( 0.33 to 0.64 mm) Frequency Settings 2500, 3000, 4000 vpm Auto-Feedback No Measurement System CCV with temperature and passes mapping Measurement Value Compaction control value (CCV) Measurement Unit Unitless GPS Capability Yes Documentation System

TopCon SiteLink web service with the ability to export files to Veda

Contact Ed Conlin (770) 238 6755 e-conlin@sakaiamerica.com

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Global Positioning System (GPS)

Grid Reference UTM-18N is the preferred coordinate reference for all devices.

Trimble GPS • A TopCon GPS receiver and a radio will be mounted on the Sakai IC roller.

• A TopCon GPS base station will be setup to provide RTK correction signals.

• A hand-held TopCon GPS rover will be used for in-situ point measurements.

OmniSTAR GPS • A GPS receiver with OmniSTAR subscription will be mounted on the HAMM IC roller.

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