JerryGeibMarch28,2018

Safer,Smarter,SustainablePavementsthroughInnovativeResearch

TPF-5(375)

NationalPavementPreservationStudy3yearsat$50k/year

• MNweather• MnDOTsite• RideData

4%coldestpopulation

• 4MMinnesotans•2.9MotherAmericans

• 8.8MCanadians• 87MRussians• 108MChinese

LowTemperatureCracking• DevelopmentofSuperPave– OriginalMnROADTestSections(PG64-22,PG58-28)– 1999MnROADTestCells(PG58-28,PG58-34,PG58-40)

0

100

200

300

400

500

600

1994 1995 1996 1997 1998 1999 2000 2001 2002

Line

ar F

eet

Cell 1Cell 2Cell 3Cell 4Cell 14Cell 15Cell 16Cell 17Cell 18Cell 19Cell 20Cell 21Cell 22Cell 23

= 5 Year (PG 58-28)= 10 Year (PG 64-22)= 10 Year (PG 58-28)

February 2, 1996-39.4 F

Jan.4,2018-44FinEmbarras,MN

NationalPavementPreservationStudy

RP185.3

RumRiverBridgeRP189.9

US-169HighVolume

Road4milesection

CSAH8LowVolumeRoad2.5milesection

MilleLacsCounty

MnROAD

Pease

13

NorthernHighTrafficPreservationonUS-169

28 Control

27 Thinlay Overlay (ABR over Chip Seal (FA 2.5))

26 Thinlay Overlay (ABR)

25 Thinlay Overlay (HiMA)

24 Ultra Thin Bonded Wearing Coarse N23 Thinlay Overlay (Virgin)

22 Thinlay Overlay (ABR with Delta S) starts 1/2 mile from US-169

CSAH - 8 (WB) 31 30 29 28 27 26 25 24 23 22

CSAH - 8 (EB) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

21 Control

20 Control - Low IRI

19 Convensional Fog Seal

18 Control

17 Rejuvenating Fog Seal

16 Control

15 Control

14 Control

13 Scrub Seal (FA 2.5)

12 Microsurfacing (Type II) over Scrub Seal (FA 2.5)

11 Microsurfacing (Type II) over Fibermat Chip Seal (FA 2.5)

10 Fibermat Chip Seal (FA 2.5)

9 Double Microsurfacing (Type II over Type II)

8 Microsurfacing (Type II w ith fibers))

7

6 Microsurfacing (Type-II) over Single Chip Seal (FA 2.5)

5 Triple Chip Seal (FA 2 over FA 2.5 over CA-50/70)

4 Double Chip Seal (FA 2 over FA 2.5)

3 Single Chip Seal (FA 2.5)

2 Construcited - 2010 Construcited - 2010

1 Crack Seal / Transverse Mastic Treatments - August 2016 Treatments - August 2016

0 Control - High IRI ABR - Asphalt Binderr Replacement

Pass

ing

Driv

ing

City

of M

ilaca

--->

(4 m

iles

Nor

th)

Rejovenating Fog Seal w

ith black diamond dust

Conventional Fog Seal w

ith black diamond dust

Microsurfacing (Type II) over crack seal and Transverse M

astic

Microsurfacing (Type III) over Scrub Seal (FA

2.5)

Microsurfacing (Type III) over Fiberm

at Chip Seal (FA

2.5)

US-169Northbound

CSAH-8

Open

MP 185.3

MP 186

MP 187

Double C

hip Seal (FA 2 over FA

2.5)

City

of P

ease

Microsurfacing (Type-III) over Single C

hip Seal (FA 2.5)

Single Chip Seal (FA

2.5) over Crack Seal / Transverse M

astic

Triple Chip Seal (FA

2 over FA 2.5 over C

A-70)

MP 188

Single Chip Seal (FA2.5) over Crack Seal / Transverse Mastic

Microsurfacing (Type II) over Crack Seal / Transverse Mastic

1/10 mille Test Sections

TrafficLayers7.5" HMAPG58-28

12" Granular

Base

Clay Subgrade

400 ADT

Double M

icrosurfacing (Type II over Type II)

Fibermat C

hip Seal (FA 2.5)

Scrub Seal (FA2.5)

Single Chip Seal (FA

2.5)

Crack Seal / Transverse M

astic

US-169Not to Scale

Each Section 528 feet long

Section Numbering 169000169001so on

80018002so on

Con

trol

Ultr

a Th

in B

onde

d W

earin

g C

oars

e

Thin

lay

Ove

rlay

(4.7

5 m

m w

ith R

AP

and

RA

S) D

elta

S

Con

trol

Con

trol

Con

trol

Microsurfacing (Type II)

Layers Traffic

Clay Subgrade

7.5" HMAPG58-28

12" Granular

Base

1800 ADT

Control

National Pavement Preservation Study (Northern Test Sections)Minnesota DOT Road Research Project (MnROAD)

National Center for Asphalt Technology (NCAT)

US-169 NB LaneCSAH-8 EB and WB Lanes

5 miles South of Milaca - Just East of Pease - Mille Lacs County

Control

Control

Thin

lay

Ove

rlay

(4.7

5 m

m w

ith R

AP

and

RA

S)

Thin

lay

Ove

rlay

(4.7

5 m

m)

Con

trol

Thinlay Overlay (A

BR

over Chip Seal (FA

2.5))

Thinlay Overlay (A

BR

over Scrub Seal (FA 2.5))

Thinlay Overlay (A

BR

over fibermat (FA

2.5))

NorthernLowTrafficPreservation

CSAH-8

NationalPavementPreservationStudy

• Goals–NationalStudy(Climaticzones)–Provideconsistentlycollecteddata/analysis–Quantifythelifeextendingbenefits• Improveand/orextendthepavementlife• Costeffectiveness

PreTreatmentCondition

US-169NorthboundLanes

PreTreatmentCondition

CSAH-8EastandWestbound

Lanes

30.0040.0050.0060.0070.0080.0090.00

100.00110.00120.00130.00140.00150.00

Pre-Co

nstructio

nPo

st-Con

struction

10-Nov-16

11-Apr-17

8-May-17

31-M

ay-17

14-Ju

n-17

29

-Jun-17

14

-Jul-1

7 25

-Jul-1

7 8-Au

g-17

23

-Aug-17

7-Sep-17

20

-Sep

-17

5-Oct-17

19-Oct-17

6-Nov-17

16-Nov-17

30-Nov-17

AverageIRI(in/m

ile)

Microsurfacing,CSAH8 Sec.4- OverSingleChipSeal

Sec.8- OverFibermatChipSeal

Sec.9- OverScrubSeal

Sec.11- OverCrackSealandTransverseMasticSec.12- TypeII

Sec.13-Double(TypeIIoverTypeII)

OpenGradedFrictionCoarse“OGFC”

24

OGFC/PCCconventionaltackOGFC/PCCultrafusetack

OGFC/HMAultrafusetackOGFC/HMAconventionaltack

August2016– HardrivesContractor

New

October 24, 2013

“Itwasnotourwealththatmadeourhighwayspossible;ratheritwasourhighwaysthatmadeourwealthpossible”,

ThomasHarrisMcDonaldCommissionerofPublicRoads1939– 1953

ThankYouJerryGeib

jerry.geib@state.mn.us

ADT I US MN total %>2,000 - 866 4,314 5,180 43.6

2-5,000 - 1,084 2,059 3,143 26.4

5-10k 162 600 784 1,546 13.0

10-50k 521 693 571 1,785 15.050-100k 135 - - 135 1.1

>100k 96 - - 96 0.8

• CR 4. 58-28, 30% RAP. Cracked every 50’ during the 1st winter.

• CR 16. 58-34, 20% RAP. No cracking during the 1st winter.

St. Louis CR 4 & 16

Minnesota’s Story(about 20 years ago)

Design for the loads(and Hope to)

Survive the environment(thermal cracking)

Minnesota’s Story(today)

Design for the loadsDesign for the environment

MINNESOTAALABAMA

MINNESOTA ALABAMATotalarea

12th 30th86,935sq.mi. 52,420

Population22nd 24th5,519,952 4,863,300

Lanemiles5th !! 17th285,180 213,068

MINNESOTA ALABAMADOTLanemiles

21th 19th29,260 29,568

Interstatelanemiles4,030 4,558

Auburndewpoints

• 70-74FVeryHumid,quiteuncomfortable• 75-80FExtremelyuncomfortable,fairlyoppressive• Over80FSeverelyhigh,deadlyforasthma

• Summerof2015.~70+dewpointsfromJune15–Sept11.

• MN12daystotalover70+• Jan20159daysbelow0,Feb12daysbelow0