New and Emerging HMA Technologies and Proven Pavement Preservation
Benjamin Worel, P.E. (MnROAD Operations Engineer)Dr. R. Buzz Powell, P.E. (NCAT Assistant Director & Test Track Manager)
August 2017
Presentation Outline
2
• MnROAD – NCAT partnership• Northern Experiment• Southern Experiment• Future Opportunities
New
First of AllThank you!
http://images.google.com/imgres?imgurl=http://dotlibrary.dot.gov/Historian/images/DOT%20SEAL-BLUE%20286.jpg&imgrefurl=http://dotlibrary.dot.gov/Historian/chronology.htm&usg=__Q7kORg7oqnc429Wfgxs6bz_grsE=&h=1864&w=1864&sz=496&hl=en&start=1&um=1&tbnid=4yFF6LSQNNUnjM:&tbnh=150&tbnw=150&prev=/images?q=oklahoma+dot+logo&um=1&hl=en&rlz=1T4SUNA_enUS287US288&sa=Nhttp://images.google.com/imgres?imgurl=http://dotlibrary.dot.gov/Historian/images/DOT%20SEAL-BLUE%20286.jpg&imgrefurl=http://dotlibrary.dot.gov/Historian/chronology.htm&usg=__Q7kORg7oqnc429Wfgxs6bz_grsE=&h=1864&w=1864&sz=496&hl=en&start=1&um=1&tbnid=4yFF6LSQNNUnjM:&tbnh=150&tbnw=150&prev=/images?q=oklahoma+dot+logo&um=1&hl=en&rlz=1T4SUNA_enUS287US288&sa=Nhttp://www.brandsoftheworld.com/download/brand/129739.htmlhttp://www.brandsoftheworld.com/download/brand/129739.html
Investment into Pavement ResearchMinnesota Highway System
Investment into Pavement ResearchMinnesota Highway System
MnROAD & NCAT Background
6
MnROAD• Entering 3rd Phase / 23 Years of Customer Service• 7 miles of Interstate and 2.5 Low Volume Road• HMA / PCC / Composite Pavements
NCAT• Entering 7th 3-year Cycle / 16 Years of Customer Service• 1.7 mile Test Track• HMA
Commonalities• Built and Operational• Knowledgeable Dedicated Staff• History of Positive Results
MnROAD & NCAT Partnership
7
• Development– Informal in the past– June 2014 @ MnROAD– October 2014 @ NCAT– FP2 / NCPP Participation
• Partnership Benefits– Individual Strengths of Each Other– Operations / Data Sharing / Analysis– North/South Environmental Zones– Greater National Appeal
October 2014 @ NCAT
http://www.fp2.org/http://www.fp2.org/
Common Activates
Common Performance Monitoring• Dedicated Pathways Van
• Cracking/Rutting/Ride• Deflection (FWD), …..
Traffic MonitoringSensor MonitoringDatabase
• Utilize the MnROAD common database with NCATCommunication
• Joint Planning Meeting with Sponsor's• Website• Reporting• National Presentations
Partnership Vision for Nationwide Impact
9
To facilitate high value pavement research that addresses national needs using full-scale pavement testing facilities in both warm and cold climates on flexible, rigid, and composite pavement structures
National Research Initiatives
10
National Pavement Preservation StudyDevelopment of a National Cracking Test
http://www.dot.state.mn.us/http://www.dot.state.mn.us/
2015 HMA Performance TestResearch Sponsors
11
Washington
Oregon
California
Nevada
Idaho
Montana
Wyoming
ColoradoUtah
New MexicoArizona
Texas
Oklahoma
Kansas
Nebraska
South Dakota
North DakotaMinnesota
Wisconsin
Illinois
Iowa
Missouri
Arkansas
Louisiana
Alabama(DOT &
DEM)
Tennessee
Michigan
Pennsylvania
New York
Vermont
Georgia
Florida
Mississippi
Kentucky
South Carolina
North Carolina
MarylandOhioDelaware
Indiana West Virginia
New Jersey
Connecticut
Massachusetts
Maine
Rhode Island
Virginia
New HampshireMichigan(upper pennisula)
Washington
Oregon
California
Nevada
Idaho
Montana
Wyoming
ColoradoUtah
New MexicoArizona
Texas
Oklahoma
Kansas
Nebraska
South Dakota
North DakotaMinnesota
Wisconsin
Illinois
Iowa
Missouri
Arkansas
Louisiana
Alabama(DOT &
DEM)
Tennessee
Michigan
Pennsylvania
New York
Vermont
Georgia
Florida
Mississippi
Kentucky
South Carolina
North Carolina
MarylandOhioDelaware
Indiana West Virginia
New Jersey
Connecticut
Massachusetts
Maine
Rhode Island
Virginia
New HampshireMichigan(upper pennisula)
National HMA Cracking Performance Test
12
Partnerships• Utilize both MnROAD / NCAT Test Tracks
• Top Down / Reflection / LTC cracking Efforts• Range of cracking potential mixes • Battery of testing of many different existing tests Nationally
Goals• We need tests and criteria that relate to performance.• We need tests that are practical for both mix design verification
and quality control testing purposes.• We need tests that accommodate recycled materials, new and
future additives, and combinations.
OT
16
17
23
22
21
20
19
18
2016 MnROAD Mix DesignsHMA Performance Test Experiment
13
13
MIX DESCRIPTION RAP RAS CELL BINDER AggregateSize POLYCRACK
POTENTIALHigh Temp Mix ~30 5 16 PG 64S-22 12.5mm No HighHigh Temp Mix
DCT Fracture Energy Results
14
0
100
200
300
400
500
600
700
800
900
1000
15 16 17 18 19 20 21 22 23 24
Frac
ture
Ene
rgy
(J/m
2 )
Test SectionLMLC Ave PMLC Ave
DCT Fracture Energy Results
Illinois Flexibility Index Test (IFIT)
15
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
C16 C17 C18 C19 C20 C21 C22 C23
Flex
ibili
tyIn
dex
RDM appears to be a valid approach to measure density • Working to develop methods to
assist construction• Significantly higher density
within mat as compared to confined and unconfined joints
• Relationship is unique, dielectric affected by aggregate type:
• Granite ~5• Limestone ~7
2015 Pavement Preservation Research Sponsors
17
Washington
Oregon
California
Nevada
Idaho
Montana
Wyoming
ColoradoUtah
New MexicoArizona
Texas
Oklahoma
Kansas
Nebraska
South Dakota
North DakotaMinnesota
Wisconsin
Illinois
Iowa
Missouri
Arkansas
Louisiana
Alabama(DOT &
DEM)
Tennessee
Michigan
Pennsylvania
New York
Vermont
Georgia
Florida
Mississippi
Kentucky
South Carolina
North Carolina
MarylandOhioDelaware
Indiana West Virginia
New Jersey
Connecticut
Massachusetts
Maine
Rhode Island
Virginia
New HampshireMichigan(upper pennisula)
FP2
Pavement Preservation Goals
18
Partnership• MnROAD (North) / NCAT (South)
• Offsite Low and High Volume Road Installations• FP2 / National Center for Pavement Preservation• Government / Academia / Industry involvement
Goals• National Study (Climatic zones)• Provide consistently collected data / analysis• Quantify the life extending benefits
http://www.dot.state.mn.us/http://www.dot.state.mn.us/http://www.fp2.org/http://www.fp2.org/
Northern Pavement Preservation
19
County Road 146RP 185.3
Rum River BridgeRP 189.9
US-169High Volume
Road4 mile section
County Road 8Low Volume Road2.5 mile section
Mille Lac County
Northern Layout of US-169/CSAH-8
20
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
Drivi
ng
City
of M
ilaca
--->
(4 m
iles
North
)
Rejovenating Fog Seal with black diam
ond dust
Conventional Fog Seal with black diam
ond 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 187Double Chip Seal (FA 2 over FA 2.5)
City
of P
ease
Microsurfacing (Type-III) over Single Chip Seal (FA 2.5)
Single Chip Seal (FA2.5) over Crack Seal / Transverse Mastic
Triple Chip Seal (FA 2 over FA 2.5 over CA-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 Microsurfacing (Type II over Type II)
Fibermat Chip Seal (FA 2.5)
Scrub Seal (FA2.5)
Single Chip Seal (FA 2.5)
Crack Seal / Transverse Mastic
US-169Not to Scale
Each Section 528 feet long
Section Numbering 169000169001so on
80018002so on
Cont
rol
Ultra
Thi
n Bo
nded
Wea
ring
Coar
se
Thin
lay
Ove
rlay
(4.7
5 m
m w
ith R
AP a
nd R
AS) D
elta
S
Cont
rol
Cont
rol
Cont
rol
Microsurfacing (Type II)
Layers Traffic
Clay Subgrade
7.5" HMAPG58-28
12" Granular
Base
1800 ADT
ControlNational 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 a
nd R
AS)
Thin
lay
Ove
rlay
(4.7
5 m
m)
Cont
rol
Thinlay Overlay (ABR over Chip Seal (FA 2.5))
Thinlay Overlay (ABR over Scrub Seal (FA 2.5))
Thinlay Overlay (ABR over fiberm
at (FA 2.5))
NorthernHigh Traffic
Preservationon US-169
NorthernLow Traffic
PreservationCSAH-8
ML Current
OriginalHMAStabilized Full Depth Reclamationof AsphaltUnbonded Concrete Overlay of PCCConcreteInitiativesOriginal ConcreteWhitetoppingBonded Concrete Overlay of Asphalt
123450560530540530640678916016296
6"58-2875 blow1" TBWC1" TBWC1" 64-345"UBOLFabric5"UBOLFabric5"UBOL5"UBOL6"LongTine6"LongTine7.5"TransTined7.5"TransTined7.5"TransTined5"BCOAtrans broom4"BCOAtrans broom6"BCOAtrans tined
2"64-342"64-342"64-34
6" FDR+ EE6" FDR+ EE8" FDR+ EE
7"58-2893HMA
7.5"cracked'93 PCC7.5"'93 PCC1" PSAB1" PSAB6"58-2893HMA
33"Class 4
Driving Lane 1.5"52-34 HMA inlay2006
Micro SurfaceAug 20127.5"'93 PCC7.5"cracked jts'93 PCC6"OGABSp6"OGABSp7"58-2893HMA
4"PSAB4"PSAB4"PSAB
6"FDR2" FDR
2"Cl 59" FDR +Fly Ash3"Cl 43"Cl 43"Cl 4
3"Cl 43"Cl 47"Class 57"Class 5Clay
6x6
ConcreteFibersClay
6x6
ConcreteFibers
33"Class 33"Cl 43"Cl 4Clay
6x5
Polypro Fibers
2011TraditionalGrind
Clay
20x1420x131" dowel
2007InnovativeGrindClay
15x1415x1313' PCCShould1" dowel
2007TraditionalGrindClay
15x1415x1313' PCCShould1" dowel
2008UltimateGrind
26"Class 427"Class 3
*6x76x6.5no dowels
*TransBroom *RCCShlds27"Class 3
*6x76x6.5no dowels
*TransBroom
*RCCShlds
27"Class 3
15x1415x13no dowels
TradGrind27"Class 3
15x1415x13no dowels
TradGrind
Clay
15'x12'1" dowel
RCCShldsClay
15'x12'1" dowel
RCCShlds
Clay
Clay
Clay
ClayClay
ClayClay
Clay
OpenedSep 92Oct 08Oct 08Oct 08Sep 11Sep 11Oct 08Oct 08Sep 11Sep 11Sep 92Sep 92Sep 92Jul 13Jul 13Oct 97
Length (ft)462500454500153146133117261292499500500449449177
Gap (ft)9760156750000021462926000
2009 SHRP-IIComposite PavementsOriginalPCCRecyledPCCWhitetoppingBonded Concrete Overlay of Asphalt
7071737212613114214314414514614714814914
3" 64-34 Saw/Seal3" PCC EAC3" PCC3" PCC9.5"
trans tined7.5"long tined6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag6" BCOATurf Drag
6" PCCRecycle6" PCCRecycle6" PCCLow Cost6" PCCLow Cost
5"58-2893 HMA5"58-2893 HMA6"58-2893HMA6"58-2893HMA7"58-2893HMA7"58-2893HMA7.5"58-2893HMA8"58-2893HMA8"58-2893HMA
2.5" Cl 1
8"Class 78"Class 78"Class 78"Class 7
5"Class 55"Class 5
Clay
6'x6'Panels
Driving1" dowels Clay
6'x6'Panels
No Dowels
Clay
6'x6'Panels Driving1" dowelsClay
6'x6'Panels
NoDowels
Clay
6'x6'Panels
Driving1" dowelsClay
6'x12'Panels
Drivingplate dowels
Clay
6'x6'Panels
Driving1" dowelsClay
6'x6'Panels
NoDowelsClay
6'x6'Panels
Driving1" dowels
Clay
15x121.25" dowelClay
15'x12'1.25" dowel
NeopreneSealed
Clay
15'x12'
Driving 1.25" dowelClayInnovativeGrind(driving) Convent. Grind(passing)
15'x12'1.25" dowelClayInnovativeGrind(driving) Convent. Grind(passing)
15'x12'1.25" dowelClay
EACSurface
15'x12'1.25" dowel
Opened May 10 May 10 May 10 May 10Sep 92Jul 13Oct 08Oct 08Oct 08Oct 08Oct 08Oct 08Oct 08Oct 08Oct 08
Length (ft)480267210469499512812413631361092424102
Gap (ft)000315380000000042
WMARecycled Unbound Base,Warm Mix AsphaltLow Temperature Cracking,Fractionated RAPWMA,taconite
151617181920212223MnROAD Mainline Traffic - ESALS per Year
3"WM58-345" WM58-345" WM58-345" WM58-345" WM58-345"58-285"58-285"58-345" WM58-34
YearDriving LanePassing Lane
FlexibleRigidFlexibleRigid
11"64-221993 HMA12"100% recyclePCC12" 50% RePCC50%Class 512"100% RAP12"Class 512"Class 512"Class 512"Class 512"MesabiBallast1994263,499395,95667,082104,717
1995579,931877,886176,791276,724
1996532,911808,851159,421248,394
1997415,828632,244110,144173,507
1998542,037821,696163,020254,847
1999641,264967,499186,017289,248
Clay
12"Class 312"Class 312"Class 312"Class 312"Class 312"Class 312"Class 312"Class 32000672,8451,015,504178,090272,328
2001712,9731,077,422191,675291,229
2002712,3161,077,750185,766282,422
2003692,4531,042,991190,299288,709
2004434,937656,611111,581169,923
2005812,3401,222,622215,201325,195
7"SelectGran7"SelectGran7"SelectGran7"SelectGran7"SelectGran7"SelectGran7"SelectGran7"SelectGran2006713,0381,075,755184,544280,287
2007759,9041,142,266188,653285,853
2008209,337318,08446,07470,208
2009773,0951,170,257196,919291,873
ClayClayClay
Chip SealJuly 2014Clay
Chip SealJuly 2014Clay30%NonFractRAPClay
30%FractRAPClay
30%FractRAPClay
2010583,177877,282141,483215,470
2011632,002956,376149,516227,038
2012719,2641,098,214178,118270,145
2013683,7511,032,696191,488286,612
Only for the MnROAD Test cells - lane closure ESALS removedSee the MnROAD Traffic Spreadsheet/Database for more details
OpenedSept 08Sept 08Sept 08Sept 08Sept 08Sept 08Sept 08Sept 08Sept 08
Length (ft)500500500500500500500500500
Gap (ft)9550707050908080Updated
August 2014
&10* All thicknesses shown as design thickness
MnROAD Mainline
160
162
ML - Old WB
2013 Diamond Grinding Testing2013 Joint Replacement Study (3 joints per test cell)
964965966967968969970970971972973974975976977978
9.5" PCC
2013 Traditonal Grind
first 100' Transil Plus sealant study 20149.5" PCC(long groved 125 blades)9.5" PCC(long groved 125 blades)9.5" PCC(long groved 90 blades)9.5" PCC(long groved 90 blades)9.5" PCC
2013 Traditonal Grind
first 100' Transil Plus sealant study 20149.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
5"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 5
Clay
27x12Panels
1.25" dowelsClay
27x12Panels
1.25" dowelsClay
27x12Panels
1.25" dowelsClay
27x12Panels
1.25" dowelsClay
27x12Panels
1.25" dowelsClay
27x12Panels
1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowels
Opened197319731973197319731973197319731973197319731973197319731973
Length (ft)500500500500500500~80~80~80~80~80~80~80~80~80
Gap (ft)000000000000042
2013 Joint Replacement Study (3 joints per test cell)
978979980981982Open970OpenOpenOpenOpenOpenOpenOpenOpenOpen
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC
(2013 Patches)
9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC
5"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 5
Clay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowels
Opened197319731973197319731973197319731973197319731973197319731973
Length (ft)~80~80~80~80~80??????????
Gap (ft)000000000000042
OpenOpenOpenOpenOpenOpenOpenOpenOpenMnROAD Mainline Traffic - ESALS per Year
9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC9.5" PCC
YearDriving LanePassing Lane
FlexibleRigidFlexibleRigid
5"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 55"Class 5
Clay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowelsClay
2013 Driving Lane Grind
27x12Panels1.25" dowels
197319731973197319731973197319731973
?????????
MnROAD I-94 Old Westbound
NCAT PG Sections
City of Milaca --->(4 miles North)National Pavement Preservation Study (Northern Test Sections)
Minnesota DOT Road Research Project (MnROAD)Thinlay Overlay (4.75 mm with RAP and RAS) Delta SUltra Thin Bonded Wearing CoarseControlControlControlThinlay Overlay (4.75 mm with RAP and RAS)Thinlay Overlay (4.75 mm) Control
National Center for Asphalt Technology (NCAT)
US-169 NB Lane
28ControlCSAH-8 EB and WB Lanes
27Thinlay Overlay (ABR over Chip Seal (FA 2.5))5 miles South of Milaca - Just East of Pease - Mille Lacs County
MP 18826Thinlay Overlay (ABR)1/10 mille Test Sections
25Thinlay Overlay (HiMA)Control
24Ultra Thin Bonded Wearing CoarseN
23Thinlay Overlay (Virgin)
City of Pease22Thinlay Overlay (ABR with Delta S)starts 1/2 mile from US-169
Ben Worel: Ben Worel:CSAH - 8 (WB)31302928272625242322
CSAH - 8 (EB)123456789101112131415161718192021
21ControlOpenCrack Seal / Transverse MasticSingle Chip Seal (FA2.5) over Crack Seal / Transverse Mastic Single Chip Seal (FA 2.5)Microsurfacing (Type-III) over Single Chip Seal (FA 2.5)Double Chip Seal (FA 2 over FA 2.5)Triple Chip Seal (FA 2 over FA 2.5 over CA-70)Fibermat Chip Seal (FA 2.5)Microsurfacing (Type III) over Fibermat Chip Seal (FA 2.5)Microsurfacing (Type III) over Scrub Seal (FA 2.5)Scrub Seal (FA2.5) Microsurfacing (Type II) over crack seal and Transverse MasticMicrosurfacing (Type II)Double Microsurfacing (Type II over Type II) Conventional Fog Seal with black diamond dustRejovenating Fog Seal with black diamond dustThinlay Overlay (ABR over fibermat (FA 2.5))Thinlay Overlay (ABR over Scrub Seal (FA 2.5))Thinlay Overlay (ABR over Chip Seal (FA 2.5))ControlControlControl
20Control - Low IRI
19Convensional Fog Seal
18Control
17Rejuvenating Fog Seal
MP 18716Control
15Control
14Control
13Scrub Seal (FA 2.5)
12Microsurfacing (Type II) over Scrub Seal (FA 2.5)
11Microsurfacing (Type II) over Fibermat Chip Seal (FA 2.5)
10Fibermat Chip Seal (FA 2.5)
9Double Microsurfacing (Type II over Type II)
8Microsurfacing (Type II with fibers))CSAH-8Not to Scale
Each Section 528 feet long
Section Numbering 169000169001so on
80018002so onUS-169
7Microsurfacing (Type II) over Crack Seal / Transverse MasticLayersTrafficLayersTraffic
MP 1866Microsurfacing (Type-II) over Single Chip Seal (FA 2.5)7.5" HMAPG58-282001400 ADT7.5" HMAPG58-2820011800 ADT
5Triple Chip Seal (FA 2 over FA 2.5 over CA-50/70)12" Granular Base12" Granular Base
4Double Chip Seal (FA 2 over FA 2.5)
3Single Chip Seal (FA 2.5)Clay SubgradeClay Subgrade
2Single Chip Seal (FA2.5) over Crack Seal / Transverse MasticConstrucited - 2010Construcited - 2010
1Crack Seal / Transverse MasticTreatments - August 2016Treatments - August 2016
0Control - High IRIABR - Asphalt Binderr Replacement
MP 185.3PassingDriving
US-169Northbound
Pre-Treatment Condition
21
US-169Northbound Lanes
Pre-Treatment Condition
22
County State Aid Highway(CSAH-8)
EB and WB Lanes
Treatment Condition (February 2017)
23
Construction Related
Open Graded Friction Coarse “OGFC”
24
OGFC/PCC conventional tack OGFC/PCC ultrafuse tack
OGFC/HMA ultrafuse tack OGFC/HMA conventional tack
August 2016 – Hardrives Contractor
MnROAD – Low Volume Road
NCAT Pavement Test Track
Lee Road 159 Control Section
Benefit of Crack Sealing
Track Thinlay
US-280 Conventional vs FiberMat Cape
US-280 Scrub Cape True Healing
Benefits of Preservation
Benefits of Preservation
QC/QA Preservation Testing
Cracking Group Tests
Design and Construction TestingPeak Load
FractureEnergy
Balanced Mix Design
Southern Cracking Group Sections
Section DescriptionRutting (mm)
Δ IRI(in/mi.)
Δ MTD (mm)
Cracking(% of lane)
N1 20% RAP (Control) 3 3 0.7 0.2
N2 Control w/ High Density 3 6 0.9 0
N5 Low AC, Low Density 1 3 0.7 0.1
N8 20% RAP 5% RAS 2 12 1.0 0.2
S5 35% RAP PG 58-28 2 0 0.8 0
S6 Control w HiMA 2 4 0.9 0
S13 AZ Rubber Mix 4 6 0.4 0
End-of-Cycle Track Conference
38
•High RAP/RAS balanced mix designs•Nationwide pavement preservation•Preventing reflective distresses•Optimized structural design•Implementation
March 27-29, 2018
2018 Pavement Research Partnership• $100k/year for Cracking Group (CG)
– Traffic continuation at MnROAD8 and NCAT8– Design, QC, unaged, aged array of test results– Support for implementation of suitable test(s)
• $50k/year for Preservation Group (PG)– Data collection, management, analysis– Life extending & condition improving benefits– Specifications, best practices, testing protocols
Thank You
New and Emerging HMA Technologies and Proven Pavement PreservationPresentation OutlineSlide Number 3Investment into Pavement ResearchInvestment into Pavement ResearchMnROAD & NCAT BackgroundMnROAD & NCAT PartnershipCommon ActivatesPartnership Vision for Nationwide ImpactNational Research Initiatives2015 HMA Performance Test�Research SponsorsNational HMA Cracking Performance Test2016 MnROAD Mix Designs�HMA Performance Test ExperimentDCT Fracture Energy ResultsIllinois Flexibility Index Test (IFIT)Slide Number 162015 Pavement Preservation �Research SponsorsPavement Preservation GoalsNorthern Pavement PreservationNorthern Layout of US-169/CSAH-8Pre-Treatment ConditionPre-Treatment ConditionTreatment Condition �(February 2017)Open Graded Friction Coarse “OGFC”NCAT Pavement Test TrackSlide Number 26Lee Road 159 Control SectionBenefit of Crack SealingTrack ThinlayUS-280 Conventional vs FiberMat CapeUS-280 Scrub Cape True HealingBenefits of PreservationBenefits of PreservationQC/QA Preservation TestingCracking Group TestsDesign and Construction TestingSouthern Cracking Group SectionsEnd-of-Cycle Track Conference2018 Pavement Research PartnershipThank You
