evaluation of thin hma surfacing in njspave/old/technical info...evaluation of thin hma surfacing in...

Evaluation of Thin HMA Surfacing in NJEvaluation of Thin HMA Surfacing in NJ

NESMEA Annual MeetingNESMEA Annual MeetingOctober 23, 2003October 23, 2003WilkesWilkes--Barre, PABarre, PA


Objective:Objective: Determine optimum materials to meet Determine optimum materials to meet the service needs of NJthe service needs of NJApplication TypesApplication Types: HMA overlays

Evaluation of Thin HMA Surfacing in NJEvaluation of Thin HMA Surfacing in NJStudy ApproachStudy Approach

Evaluate three materialsEvaluate three materialsAsphalt Rubber Open Graded Friction Course (ARAsphalt Rubber Open Graded Friction Course (AR––OGFC)OGFC)Modified Open Graded Friction Course (MOGFC)Modified Open Graded Friction Course (MOGFC)NovachipNovachip®®

Design and construct comparative pavementsDesign and construct comparative pavementsSimilar Similar ProjectsProjects -- traffic, climate, structure, etc.traffic, climate, structure, etc.

Evaluate long term performanceEvaluate long term performancePMS data PMS data –– rutting, cracking, ride, and skidrutting, cracking, ride, and skid

Additional issuesAdditional issuesCostCostNoiseNoiseSafetySafety

Wet pavementWet pavementWinter maintenanceWinter maintenance


Preliminary ReportPreliminary ReportFive projects / Three materialsFive projects / Three materialsReport on:Report on:

Pavement Design and Construction DataPavement Design and Construction DataMix Design and AsMix Design and As--constructed Dataconstructed DataPMS DataPMS DataRelative Safety Enhancements Relative Safety Enhancements –– skid, spray, etc.skid, spray, etc.Noise DataNoise DataInitial CostInitial Cost

Projects 1 & 2 Projects 1 & 2 –– Asphalt RubberAsphalt Rubber--OGFCOGFC

Project DetailsProject Details

LocationLocation II--195 (Jackson)195 (Jackson) Rt. 9 (Tuckerton)Rt. 9 (Tuckerton)

Original pavementOriginal pavement ’’7272-- 6.5” HMA6.5” HMA ’’2525-- 8” PCC / ’53 HMA8” PCC / ’53 HMA’87’87-- 4” HMA4” HMA

Construction dateConstruction dateTraffic (ESAL /20yr)Traffic (ESAL /20yr)

Sept. Sept. –– 1992199227 million27 million

Oct. Oct. –– 199319937.1 million7.1 million

Overlay DesignOverlay Design 2”2”-- mill / 4”mill / 4”-- fillfill 2”2”-- mill / 3”mill / 3”-- fillfill

SurfaceSurface 1” AR 1” AR –– OGFCOGFC 1” AR 1” AR -- OGFCOGFC

IntermediateIntermediate 3” I3” I--2 base2 base 2” I2” I--2 base2 base

Projects 1 & 2Projects 1 & 2–– ARAR--OGFCOGFCMix Design & Construction Mix Design & Construction –– ARAR--OGFCOGFC

DesignDesign I I -- 195195 Rt. 9Rt. 9

% % -- Air Voids *Air Voids * 18%18% 16.5%16.5%

% AC% AC--2020 + + 15% 15% Ground Tire RubberGround Tire Rubber

6.6% 6.6% ((--80 mesh)80 mesh)

6.5% 6.5% ((--40 mesh)40 mesh)

Production varianceProduction variance((design) / prod. design) / prod. -- % % pass. #4pass. #4

(39%) / 37%(39%) / 37% (35%) / 38%(35%) / 38%

((design) / prod. design) / prod. -- % air % air voidsvoids

(18%) / 20%(18%) / 20% (16.8%) / 15.8%(16.8%) / 15.8%

* 25 blow Marshall

Asphalt Rubber BlendingAsphalt Rubber Blending

Projects 1 & 2Projects 1 & 2–– ARAR--OGFCOGFC

Safety, Noise, CostSafety, Noise, Cost

I I –– 195195 Rt. 9Rt. 9

NCAT NCAT –– Sound Sound trailer # trailer # dB(A)dB(A)

96.696.6 96.896.8

Bid price Bid price –– Ton / Ton / QuantityQuantity

$146 / 470 T$146 / 470 T $60 / 1100 T$60 / 1100 T

Other issuesOther issues Winter Winter maintenancemaintenance

Winter Winter maintenancemaintenance

* I-2 Base - $28/T

Project 3 Project 3 –– MOGFC over PCCMOGFC over PCCProject DetailsProject DetailsLocationLocation Rt.24 Union, NJRt.24 Union, NJ

Original pavementOriginal pavement 9 ins. PCC / 25 years old9 ins. PCC / 25 years old

Construction dateConstruction dateTraffic (ESAL /20 yr)Traffic (ESAL /20 yr)

Sept. Sept. –– 1999199970 million70 million

DesignDesign 1 ¼” 1 ¼” -- MOGFC + hot AC MOGFC + hot AC tack directly on old PCCtack directly on old PCC

SurfaceSurface MOGFC #1 / PG 76MOGFC #1 / PG 76--22 + 22 + cellulose fiberscellulose fibers

Project 3 Project 3 –– MOGFC over PCCMOGFC over PCC

Mix Design & ConstructionMix Design & Construction

0

10

20

30

40

50

60

70

80

90

100

Sieve Sizes (mm)

Perc

ent P

assi

ng

12.5 19 1.18 2.36 4.750.075 0.3

MOGFC - RT 24

AR-OGFC / I-195

AR-OGFC / Rt 9

Rt. 24 MOGFC on PCCRt. 24 MOGFC on PCC


Mix Design & Construction Mix Design & Construction –– MOGFC on PCCMOGFC on PCC

DesignDesign NJ Rt. 24NJ Rt. 24% % -- Air Voids *Air Voids * 21.1%21.1%% % -- VMAVMA 35.1%35.1%% AC (PG 76% AC (PG 76--22)22) 6.8% (+ 0.4% fibers)6.8% (+ 0.4% fibers)

Production varianceProduction variance((design) / prod. design) / prod. -- % pass. % pass. 3/8”3/8”

(82.3%) / 85.3%(82.3%) / 85.3%

((design) / prod. design) / prod. -- % air % air voidsvoids

(21.1%) / 20.0%(21.1%) / 20.0%

* SGC – 50 Gyrations


Safety, Noise, CostSafety, Noise, Cost

NJ Rt. 24NJ Rt. 24

NCAT NCAT –– Sound Sound trailer # trailer # dB(A)dB(A)

97.597.5

Change orderChange orderprice price –– MGR / MGR / QuantityQuantity

$ 81.50 / 8600 $ 81.50 / 8600

Other issuesOther issues Winter maintenance Winter maintenance

Projects 4 & 5 Projects 4 & 5 –– Novachip / MOGFCNovachip / MOGFC

Project DetailsProject Details

Original Pavement: 4 lane Interstate IOriginal Pavement: 4 lane Interstate I--195195

Construction:Construction: October October –– 20002000 May May -- 20012001

Design:Design: Mill Mill –– 2” / replace 52” / replace 5--6” new HMA 6” new HMA –– PG 76PG 76--22 all22 all

Traffic ESAL:Traffic ESAL: 27.8 Million27.8 Million

Surface lift:Surface lift: ½” ½” NovachipNovachip®® -- Koch Koch proprietary product proprietary product ––Polymer emulsion tack Polymer emulsion tack applied in front of screedapplied in front of screed

1” 1” MOGFCMOGFC #2 NCAT #2 NCAT mix design proc.+ mix design proc.+ mineral fibermineral fiber

Intermediate Intermediate lift:lift:

4 ½” 4 ½” –– 5 ½” 5 ½” 12.5mm/19mm Superpave12.5mm/19mm Superpave

4” 4” –– 5” 12.5mm/ 5” 12.5mm/ 19mm Superpave19mm Superpave


Mix DesignMix Design ––Novachip / MOGFCNovachip / MOGFC

0

10

20

30

40

50

60

70

80

90

100

Sieve Sizes (mm)

Perc

ent P

assi

ng

12.5 19 1.18 2.36 4.750.075 0.3

Mod. OGFC-2

12.5 MM - SP

Novachip



DesignDesign NovachipNovachip MOGFC #2MOGFC #2% % -- Air Voids *Air Voids * 23.0 %23.0 %% % -- VMAVMA 35.6 %35.6 %% % -- AC (PG 76AC (PG 76--22)22) 4.9%4.9% 6.0%6.0%(+ 0.4% fiber)(+ 0.4% fiber)

Production varianceProduction variance((design) / prod. design) / prod. -- % pass. % pass. #4#4

(33%) / 27%(33%) / 27% (13%) / 18%(13%) / 18%

((design) / prod. design) / prod. -- % pass. % pass. 3/83/8

(73.5%) / 68%(73.5%) / 68%

* SGC – 50 Gyrations

Projects 4 & 5 Projects 4 & 5 –– Novachip / MOGFCNovachip / MOGFCSafety, Noise, CostSafety, Noise, Cost

NovachipNovachip MOGFC #2MOGFC #2

NCAT NCAT –– Sound Sound trailer # dB(A)trailer # dB(A)

98.298.2 98.398.3

Bid price * Bid price * –– MG MG / Quantity/ Quantity

$105 / 2920$105 / 2920 $51.50 / 9069$51.50 / 9069

Other issuesOther issues Winter Winter maintenancemaintenance

* 12.5 mm SP – $ 45

All ProjectsAll Projects


0

10

20

30

40

50

60

70

80

90

100

Sieve Sizes (mm)

Perc

ent P

assi

ng

12.5 19 1.18 2.36 4.750.075 0.3

MOGFC #2 I-195

AR - OGFC / I-195

AR OGFC / Rt 9

NovachipMOGFC #1 Rt. 24

Pre and Post Construction IRIPre and Post Construction IRI

020406080

100120140160180

Rt. 24 MOGFC-1

I-195 WBNovachip

I-195 EBMOGFC-2

IRI

Wet Weather PerformanceWet Weather Performance

Skid ResistanceSkid ResistanceSpraySpray

Skid ResistanceSkid Resistance

Spray Spray -- Dense Graded AsphaltDense Graded Asphalt

Spray Spray -- Open Graded AsphaltOpen Graded Asphalt

Spray Spray -- NovachipNovachip

Winter MaintenanceWinter Maintenance

NCAT Noise TrailerNCAT Noise Trailer

Sound Pressure [dB(A)]Sound Pressure [dB(A)]

96.6 96.897.5

98.2 98.3 98.599.4

98.7

102.9

93949596979899

100101102103104

I-195

AR-

OGFC

Rt. 9

AR-

OGFC

Rt. 2

4 MOG

FC-1

I-195

Nov

achip

I-195

MOG

FC-2

12.5

Supe

rpave

19 S

uperp

ave

PCC

DGPC

C Rt

. 280

Dec

ibel

s

Cost ($/ Ton)Cost ($/ Ton)146

6074

95

47 41

020406080

100120140160

I-195

AR-

OGFC

Rt. 9

AR-

OGFC

Rt. 2

4 MOG

FC-1

I-195

Nov

achip

I-195

MOG

FC-2

12.5

Supe

rpave

Cos

t ($/

Ton)

NJ Rt. 24 NJ Rt. 24 -- ‘New” OGFC ‘New” OGFC -- paving over hotpaving over hot--applied tack applied tack (PG 64(PG 64--22 @ 0.3 liters/sq. meter22 @ 0.3 liters/sq. meter

NJ Rt. 24 “New OGFC NJ Rt. 24 “New OGFC -- Typical PCC joint Typical PCC joint

NJ Rt.24 NJ Rt.24 -- “new” OGFC “new” OGFC -- Reflective crack 4/00Reflective crack 4/00

NJ Rt. 24 (10/03) NJ Rt. 24 (10/03) –– “saw and seal” Joint“saw and seal” Joint

NJ Rt. 24 NJ Rt. 24 -- 20032003

NJ Rt. 24 (10/03) NJ Rt. 24 (10/03) –– broken slab endbroken slab end

NJ Rt. 24 NJ Rt. 24 -- 20032003

Questions?Questions?

Evaluation of Thin HMA Surfacing in NJEvaluation of Thin HMA Surfacing in NJEvaluation of Thin HMA Surfacing in NJEvaluation of Thin HMA Surfacing in NJProjects 1 & 2 – Asphalt Rubber-OGFCProjects 1 & 2– AR-OGFCAsphalt Rubber BlendingProjects 1 & 2– AR-OGFCProject 3 – MOGFC over PCCProject 3 – MOGFC over PCCRt. 24 MOGFC on PCCProject 3 – MOGFC over PCCProject 3 – MOGFC over PCCProjects 4 & 5 – Novachip / MOGFCProjects 4 & 5 – Novachip / MOGFCProjects 4 & 5 – Novachip / MOGFCProjects 4 & 5 – Novachip / MOGFCAll ProjectsPre and Post Construction IRIWet Weather PerformanceSkid ResistanceSpray - Dense Graded AsphaltSpray - Open Graded AsphaltSpray - NovachipWinter MaintenanceNCAT Noise TrailerSound Pressure [dB(A)]Cost ($/ Ton)NJ Rt. 24 - ‘New” OGFC - paving over hot-applied tack (PG 64-22 @ 0.3 liters/sq. meterNJ Rt. 24 “New OGFC - Typical PCC jointNJ Rt.24 - “new” OGFC - Reflective crack 4/00NJ Rt. 24 (10/03) – “saw and seal” JointNJ Rt. 24 - 2003NJ Rt. 24 (10/03) – broken slab endNJ Rt. 24 - 2003Questions?

evaluation of thin hma surfacing in njspave/old/technical info...evaluation of thin hma surfacing in...

Documents