Perkerasan Jalan Raya Dengan Metode Micro Surfacing

Micro-Surfacing used in Micro-Surfacing used in “Pavement Preservation “Pavement Preservation

Practices”Practices”

The problemThe problem Too many roads, not enough fundsToo many roads, not enough funds

The opportunityThe opportunity A sound pavement preservation A sound pavement preservation program to optimize paving fundsprogram to optimize paving funds

Pavement PreservationPavement Preservation““Strategy including all activities to Strategy including all activities to provide & maintain serviceable roadways”provide & maintain serviceable roadways”

The right treatment,The right treatment,on the right pavement,on the right pavement,at the right timeat the right time

Lower life cycle costs, higher quality Lower life cycle costs, higher quality pavementspavements

Keeping good pavements goodKeeping good pavements good In essence, buying timeIn essence, buying time

What is Pavement What is Pavement Preservation?Preservation?

Asset managementAsset management Protect investment Protect investment Enhance cost-effectiveness of treatmentsEnhance cost-effectiveness of treatments Lower life cycle costsLower life cycle costs

Preventive maintenance (PM) seals & Preventive maintenance (PM) seals & protectsprotects Extend pavement lifeExtend pavement life Delay future deteriorationDelay future deterioration

Enhance pavement performanceEnhance pavement performance Improve functional conditionImprove functional condition

e.g. skid resistancee.g. skid resistance Reduce user delaysReduce user delays

Get in, get out, stay outGet in, get out, stay out

Preventive Maintenance Cost Preventive Maintenance Cost SavingsSavings

Pavement

condition

Time or traffic

Conventional overlay

Preventive maintenance treatments

The Right TimeThe Right TimeStrategy to Minimize CostsStrategy to Minimize Costs

Conditio

n

Time

$1 for preventive maintenance here

Is 3 to 10 times more cost

effective than here

Effective PreventiveEffective PreventiveMaintenanceMaintenance

Micro-SurfacingMicro-SurfacingThe Right Treatment For:The Right Treatment For:

Restoring surface quality & skid Restoring surface quality & skid resistanceresistance

Rut fillingRut filling Quick construction, quick traffic returnQuick construction, quick traffic return WeatherproofingWeatherproofing

Sealing Sealing Reducing oxidationReducing oxidation

Extending the life of HMA and chip-seal Extending the life of HMA and chip-seal pavements. Including those HMA pavements pavements. Including those HMA pavements where edge-grinding practices have been where edge-grinding practices have been used and the curb has been compromised used and the curb has been compromised with many HMA overlays.with many HMA overlays.

What is Micro-Surfacing?What is Micro-Surfacing?HistoryHistory

Developed in Europe in 1970’s withDeveloped in Europe in 1970’s with the proprietary name of “RALUMAC.”the proprietary name of “RALUMAC.” Introduced in U.S. in 1980’s and Introduced in U.S. in 1980’s and genericallygenerically

named: “Micro-Surfacing”.named: “Micro-Surfacing”. Now routinely used in more than 40 statesNow routinely used in more than 40 states

Used for rut filling & texturing.Used for rut filling & texturing. Strictly a topical treatment. Will not Strictly a topical treatment. Will not correctcorrect

any structural or base problems. any structural or base problems.

Micro-SurfacingMicro-Surfacing A designed mixture of:A designed mixture of:

polymer modifiedpolymer modified emulsified asphalt emulsified asphalt

100% crushed aggregate:100% crushed aggregate: limestone, slag, trap-rocklimestone, slag, trap-rock mineral fillermineral filler waterwater other additivesother additives

Proportioned, mixed & uniformly spread Proportioned, mixed & uniformly spread over a properly prepared surface over a properly prepared surface

ISSA A-143ISSA A-143 State DOT specificationsState DOT specifications ASTM D-6372ASTM D-6372

Micro-Surfacing Micro-Surfacing ComponentsComponents

Water

Mineral Filler

Aggregate

Additive

Micro-Surfacing Emulsion

Micro-Surfacing Micro-Surfacing EmulsionEmulsion

em ulsifier w ater acid polym er asphalt

M ILL

Polym erM odifiedEm ulsion

em ulsifier w ater acid polym er asphalt

M ILL

Polym erM odifiedEm ulsion

Micro-SurfacingMicro-SurfacingMachine SchematicMachine Schematic

Spreaderbox

Crushedaggregat

e

Cementadditiv

ewater

PolymerModifie

dEmulsio

n

Direction

Mixing time15 to 45 seconds

Mixture Brown &Homogeneous

Breaking Time60 to 120 seconds

Traffic in Approximately One Hour

Mixture Black

Water Flows

Micro-Surfacing Machine Micro-Surfacing Machine

9

1

11

67

45

8

3

10

(1) Aggregate bin(2) Mineral filler bin(3) Additive storage(4) Metered aggregate(5) Metered micro-

surfacing emulsion(6) Metered water &

additive(7) Pugmill(8) Micro-surfacing(9) Surfacing spreader

box(10) Brown to black color(11) Road water spray bar

2

Multi-Bladed PugmillMulti-Bladed Pugmill

Polymer Modified Polymer Modified Residual AsphaltResidual Asphalt

Reduces temperature susceptibilityReduces temperature susceptibility Polymer either mixed into the AC base, Polymer either mixed into the AC base, or or co-milled with the AC in making the co-milled with the AC in making the emulsionemulsion

Minimum of 3% polymer solids based on Minimum of 3% polymer solids based on AC content of emulsionAC content of emulsion

IL-DOT uses an elastic recovery test IL-DOT uses an elastic recovery test toto

determine % of polymer in AC basedetermine % of polymer in AC base

Micro-SurfacingMicro-Surfacing Mix can be placed in Mix can be placed in thicker lifts and still thicker lifts and still remain stable remain stable

Mix retains macro-textureMix retains macro-texture Mix can be “feathered” nextMix can be “feathered” next to the curb/flagto the curb/flag Quick setting for quick Quick setting for quick traffic return. Usually 15 traffic return. Usually 15 minutes to 1 hourminutes to 1 hour

Enhanced durabilityEnhanced durability No dust, no loose stones,No dust, no loose stones, no trackingno tracking Aggregate is encapsulated Aggregate is encapsulated inin

the asphaltthe asphalt

Micro-SurfacingMicro-SurfacingMachine Machine

Continuous Self-Propelled Continuous Self-Propelled Paver Paver

with Support Unitswith Support Units

Continuously Run & Continuously Run & Self-Propelled PaverSelf-Propelled Paver

Loading Area. Aggregate Loading Area. Aggregate stock-pile, emulsion, stock-pile, emulsion,

water tanks.water tanks.

Support unit for Support unit for continuous paver.continuous paver.

Support unit: water tank, Support unit: water tank, flow-boy feed hydraulic drive, flow-boy feed hydraulic drive,

emulsion tankemulsion tank..

Continuous paver waiting Continuous paver waiting for support unit.for support unit.

Support unit coupled to Support unit coupled to paver. Notice dark steel-slag paver. Notice dark steel-slag

aggregate.aggregate.

Adding Portland cement. Paver Adding Portland cement. Paver meters 1 to 2% depending on meters 1 to 2% depending on

Micro mix-design.Micro mix-design.

Micro slurry being fed Micro slurry being fed into mixing box.into mixing box.

Continuous, seamless Continuous, seamless Micro-Surfacing Micro-Surfacing application.application.

Finishing final pull.Finishing final pull.

The Micro-Surfacing The Micro-Surfacing ProcessProcess

Click to run movie clip

../../../Ralumac%20Process.wmv

ConstructionConstructionQuality Micro-SurfacingQuality Micro-Surfacing

Appropriate Appropriate SpecificationsSpecifications

Specifications should Specifications should describe & match the describe & match the jobjob

Specifications should Specifications should describe & meet your describe & meet your expectationsexpectations

Surface PreparationSurface Preparation Crack sealingCrack sealing Asphalt patchingAsphalt patching Clean the surfaceClean the surface

Sweep - washSweep - wash Pavement marking removalPavement marking removal

Tape – paintTape – paint Cover the utilities Cover the utilities Remove reflective pavement markersRemove reflective pavement markers

Crack Filled Street: Crack Filled Street: polished,polished,

good candidate.good candidate.

Crack-filled, polished, Crack-filled, polished, somesome

oxidation. Good candidate.oxidation. Good candidate.

Excellent pavement Excellent pavement integrity.integrity.

Cracked filled, great Cracked filled, great candidate.candidate.

Pavement has excellent integrity. Pavement has excellent integrity. If construction seam is not If construction seam is not

filled, it will eventually fail. filled, it will eventually fail. Excellent candidate.Excellent candidate.

Polished, oxidized Polished, oxidized pavement.pavement.

Some patches. Good Some patches. Good candidate.candidate.

Asphalt patch. Oxidized. Asphalt patch. Oxidized. Well maintained pavement.Well maintained pavement.

Road contaminants: dirt, mud, Road contaminants: dirt, mud, sand, vegetation. Pavement sand, vegetation. Pavement

must be cleaned before must be cleaned before application.application.

Ruts < ½” May Be Filled Ruts < ½” May Be Filled With Scratch CourseWith Scratch Course

Full Width Lane

Pavement

o o o o o o o o o o

Steel Strike Off Scratches Surface

The scratch coat is generally 6” less than the width of the lane.

Applying Leveling Applying Leveling CourseCourse

Leveling Course AppliedLeveling Course Applied

Reprofiling Rutted Reprofiling Rutted WheelpathsWheelpaths

Original Pavement Cross Section Crown

Ruts in Wheelpath

For each inch of applied Micro-Surfacing mix,

add 1/8” to 1/4” crown to each rutfillto compensate for return traffic

compaction

Ruts 1/2” & over must use the rut box

Micro-Surfacing MixMicro-Surfacing Mix

Rut Filling Lay Down Box.Rut Filling Lay Down Box.Generally a Type III Generally a Type III

gradation is used for rut-gradation is used for rut-fillingfilling..

Rut Fill & Strike OffRut Fill & Strike Off

Setting strike-off

Operating Rut BoxOperating Rut Box

Rut-fillingRut-filling BeforeBefore

AfterAfter

Surface CourseSurface Course

Material PlacementMaterial Placement

Secondary Strike-OffSecondary Strike-Off

Feathering up to Feathering up to thethe

curb/flag curb/flag

Smooth Ride Smooth Ride Textured Wearing SurfaceTextured Wearing Surface

Good Straight Edge Good Straight Edge LinesLines

Why do Surface Why do Surface Treatments Fail?Treatments Fail?

Improper road selectionImproper road selection Improper pavement Improper pavement preparationpreparation

Lack of control of Lack of control of materials during materials during applicationapplication

Traffic control Traffic control ----------------------

Working too late in the Working too late in the seasonseason

Material incompatibility Material incompatibility

Delaminating/Pushing. No Delaminating/Pushing. No tack coat, tender mix?tack coat, tender mix?

The Right The Right PavementsPavementsfor Micro-for Micro-SurfacingSurfacing

InterstatesInterstates

Major ArterialsMajor Arterials

Secondary State Routes Secondary State Routes

Residential StreetsResidential Streets

Rural RoadsRural Roads

Rutted PavementsRutted PavementsWith Minor FlushingWith Minor Flushing

Rut Filled With Rut Filled With Surface CourseSurface Course

Raveled Surface.Raveled Surface.Depending on severityDepending on severity

Micro-Surfacing at NightMicro-Surfacing at Night

The WrongThe Wrong Pavements Pavementsfor Micro-for Micro-SurfacingSurfacing

Micro-Surfacing Can’t Micro-Surfacing Can’t Work Miracles…Bad, Bad, Work Miracles…Bad, Bad,

Bad!Bad!

Instances where pavements have Instances where pavements have reached their “critical mass”. reached their “critical mass”. Beyond preservation or any Beyond preservation or any

topical treatments.topical treatments.

Bad. Draining issues. Bad. Draining issues. Hydraulic pumping.Hydraulic pumping.

Bad.Bad.

Bad. Done. Blowing Bad. Done. Blowing chunks!chunks!

Bad. What else can I say?Bad. What else can I say?Great CIR candidate.Great CIR candidate.

Before & After Before & After Micro-SurfacingMicro-Surfacing

2009 Micro-Surfacing in 2009 Micro-Surfacing in Galesburg, IL with steel Galesburg, IL with steel

slag. 1 of 5slag. 1 of 5


slag. 2 of 5slag. 2 of 5


slag. Very little curb left slag. Very little curb left to HMA lifts over flag. 3 of to HMA lifts over flag. 3 of

55

2009 Micro-Surfacing in 2009 Micro-Surfacing in Galesburg, IL with steel Galesburg, IL with steel slag. Notice quality of slag. Notice quality of existing pavement. 4 of 5existing pavement. 4 of 5

2009 Micro-Surfacing in Galesburg, IL 2009 Micro-Surfacing in Galesburg, IL with steel slag. Check texture. 60K with steel slag. Check texture. 60K yd2 in 2008, 105K yd2 in 2009. 5 of yd2 in 2008, 105K yd2 in 2009. 5 of

5.5.

Knox County CH 8. 13 Mile Cape-Seal Knox County CH 8. 13 Mile Cape-Seal 2007/2008. Stage construction. Micro 2007/2008. Stage construction. Micro with steel-slag on top of the new with steel-slag on top of the new

polymer chip-seal. 1 of 5polymer chip-seal. 1 of 5

2009 Mason County Cape-Seal. 2009 Mason County Cape-Seal. Manito Rd. 2 Sections totaling Manito Rd. 2 Sections totaling

8.8 miles. Crack-sealing+polymer 8.8 miles. Crack-sealing+polymer chip-seal+Micro. 1 of 10chip-seal+Micro. 1 of 10


8.8 miles. Crack-sealing+polymer 8.8 miles. Crack-sealing+polymer chip-seal+Micro.10 of 10chip-seal+Micro.10 of 10

Benefits of Benefits of Micro-SurfacingMicro-Surfacing

Restoration of surface propertiesRestoration of surface properties & skid numbers& skid numbers Rut-fillingRut-filling Sealing & waterproofingSealing & waterproofing Delineates pavement markings Delineates pavement markings & shoulders& shoulders

Usually no additional shoulder Usually no additional shoulder aggregate is required, resulting in aggregate is required, resulting in additional savingsadditional savings

versus other methodsversus other methods High performance wearing courseHigh performance wearing course Improve pavement aesthetics Improve pavement aesthetics

Benefits of Benefits of Micro-SurfacingMicro-Surfacing

Preserves investmentPreserves investment Quick traffic, Quick traffic, 1 hour or less1 hour or less

Minimizes traffic Minimizes traffic disruptionsdisruptions

Cost effectiveCost effective No appurtenance No appurtenance adjustmentsadjustments

Night time placement Night time placement

Typical Typical Micro-Surfacing CostsMicro-Surfacing Costs

Price varies depending upon Price varies depending upon treatmenttreatment Surface courseSurface course Leveling & surfaceLeveling & surface Rut-fill & surfaceRut-fill & surface Cape-Seal: additional chip-seal costCape-Seal: additional chip-seal cost

Typical life - 5 to 12 yearsTypical life - 5 to 12 years Depends upon condition of pre-existing Depends upon condition of pre-existing pavement, construction quality, pavement, construction quality, climate, traffic and other factors climate, traffic and other factors

The Right TreatmentsThe Right TreatmentsEstimated Life ExtensionEstimated Life Extension

(years)(years)

2 -45 -710 -12Thin HMA2 -45 -78 -12Micro-surfacing1 -33 -57 -10Slurry Seal1 -33 -57 -10Chip Seal1 -21 -33 -5Fog Seal

Poor Condition (PCI=40)

Fair Condition (PCI=60)

Good Condition (PCI=80)Treatment

2 -45 -710 -12Thin HMA2 -45 -78 -12Micro-surfacing1 -33 -57 -10Slurry Seal1 -33 -57 -10Chip Seal1 -21 -33 -5Fog Seal

Poor Condition (PCI=40)

Fair Condition (PCI=60)

Good Condition (PCI=80)Treatment

IL Counties who have used IL Counties who have used Micro, or will be using it Micro, or will be using it

this year.this year.Carroll Kane Mason Carroll Kane Mason Sangamon Sangamon

Champaign Kendall McHenry ShelbyChampaign Kendall McHenry ShelbyColes Knox McLean Coles Knox McLean Whiteside Whiteside

DeWitt LaSalle MonroeDeWitt LaSalle MonroeIroquois Lee OgleIroquois Lee OgleJackson Macon PeoriaJackson Macon Peoria

IL Municipalities who have IL Municipalities who have used Micro, or will be using used Micro, or will be using

it this year.it this year.Erie Sterling Aledo Erie Sterling Aledo StreatorStreator

Fulton Dixon Galesburg Fulton Dixon Galesburg AshlandAshland

Savanna Lanark Geneseo DecaturSavanna Lanark Geneseo DecaturPort Byron Rapids City Belvidere NeogaPort Byron Rapids City Belvidere NeogaHampton Milan Naperville CarbondaleHampton Milan Naperville CarbondaleDurand Moline N. Aurora Durand Moline N. Aurora DanvilleDanville

Rockford E. Moline Ottawa SycamoreRockford E. Moline Ottawa Sycamore

SummarySummary Micro-surfacing, theMicro-surfacing, theright treatment forright treatment for RutfillingRutfilling TexturizingTexturizing Improving skid resistanceImproving skid resistance Sealing out moistureSealing out moisture Ultrathin surfacingUltrathin surfacing Quick construction & traffic returnQuick construction & traffic return Cost-effective pavement preservationCost-effective pavement preservation

Perkerasan Jalan Raya Dengan Metode Micro Surfacing

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