Perkerasan Jalan Raya Dengan Metode Micr

(1)

Micro-Surfacing used in

“Pavement Preservation

(2)



The problem

 Too many roads, not enough fundsToo many roads, not enough funds



The opportunity

 A sound pavement preservation A sound pavement preservation

(3)

Pavement Preservation

“

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

maintain serviceable roadways”

The right treatment, The right treatment,

on the right pavement, on the right pavement,

at the right time at the right time

Lower life cycle costs, higher quality pavements Lower life cycle costs, higher quality pavements

Keeping good pavements goodKeeping good pavements good

(4)

What is Pavement

Preservation?

 Asset managementAsset management  Protect investment Protect investment

 Enhance cost-efectiveness of treatmentsEnhance cost-efectiveness of treatments  Lower life cycle costsLower life cycle costs

 Preventive maintenance (PM) seals & protectsPreventive maintenance (PM) seals & protects  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

(5)

Preventive Maintenance Cost

Savings

(6)

P

Time or traffic

Conventional overlay

Preventive maintenance treatments

The Right Time

Strategy to Minimize Costs

(7)

(8)

Micro-Surfacing

The Right Treatment For:

 Restoring surface quality & skid resistanceRestoring surface quality & skid resistance  Rut fllingRut flling

 Quick construction, quick trafic returnQuick construction, quick trafic return  WeatherproofngWeatherproofng

 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

where edge-grinding practices have been

used and the curb has been compromised

with many HMA overlays.

(9)

What is Micro-Surfacing?

History

 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 genericallyIntroduced in U.S. in 1980’s and generically

named: “Micro-Surfacing”.named: “Micro-Surfacing”.

 Now routinely used in more than 40 statesNow routinely used in more than 40 states

 Used for rut flling & texturing.Used for rut flling & texturing.

 Strictly a topical treatment. Will not correctStrictly a topical treatment. Will not correct

(10)

Micro-Surfacing

 A designed mixture of:A designed mixture of:

 polymer modifedpolymer modifed

emulsifed asphalt emulsifed asphalt

 100% crushed aggregate:100% crushed aggregate:

limestone, slag, trap-rocklimestone, slag, trap-rock

 mineral fllermineral fller  waterwater

 other additivesother additives

 Proportioned, mixed & uniformly spread over a Proportioned, mixed & uniformly spread over a

properly prepared surface properly prepared surface

 ISSA A-143ISSA A-143

(11)

(12)

Micro-Surfacing

Emulsion

emulsifier water acid polymer asphalt

MILL

Polymer Modified Emulsion

emulsifier water acid polymer asphalt

MILL

(13)

Micro-Surfacing

Direction _{15 to 45 seconds}Mixing time

Mixture Brown & Homogeneous

Breaking Time

60 to 120 seconds

Traffic in Approximately One Hour

Mixture Black

(14)

Micro-Surfacing Machine

9 (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

(15)

(16)

Polymer Modifed

Residual 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

emulsion emulsion

 Minimum of 3% polymer solids based on Minimum of 3% polymer solids based on

AC content of emulsion AC content of emulsion

 IL-DOT uses an elastic recovery test toIL-DOT uses an elastic recovery test to

(17)

Micro-Surfacing

 Mix can be placed in thicker Mix can be placed in thicker

lifts and still remain stable lifts and still remain stable

 Mix retains macro-textureMix retains macro-texture  Mix can be “feathered” nextMix can be “feathered” next

to the curb/fagto the curb/fag

 Quick setting for quick Quick setting for quick

trafic return. Usually 15 trafic return. Usually 15

minutes to 1 hour minutes to 1 hour

 Enhanced durabilityEnhanced durability

 No dust, no loose stones,No dust, no loose stones,

no trackingno tracking

 Aggregate is encapsulated inAggregate is encapsulated in

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Micro-Surfacing

Machine

Continuous Self-Propelled

Paver

with Support Units

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Continuously Run &

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Loading Area. Aggregate

stock-pile, emulsion, water

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Support unit for continuous

(22)

Support unit: water tank,

fow-boy feed hydraulic drive,

boy feed hydraulic drive,

emulsion tank

(23)

Continuous paver waiting

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Support unit coupled to paver.

Notice dark steel-slag

aggregate.

(25)

Adding Portland cement. Paver

meters 1 to 2% depending on

Micro mix-design.

(26)

Micro slurry being fed into

(27)

Continuous, seamless

Micro-Surfacing

(28)

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The Micro-Surfacing

Process

(30)

Construction

Quality Micro-Surfacing

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Appropriate

Specifcations

 Specifcations should Specifcations should describe & match the

describe & match the

job

 Specifcations should Specifcations should describe & meet your

describe & meet your

expectations

(32)

Surface 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

(33)

Crack Filled Street:

polished,

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Crack-flled, polished, some

(35)

Excellent pavement

integrity.

Cracked flled, great

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Pavement has excellent integrity.

If construction seam is not flled,

it will eventually fail. Excellent

candidate.

(37)

Polished, oxidized

pavement.

Some patches. Good

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Road contaminants: dirt, mud,

sand, vegetation. Pavement

must be cleaned before

application.

(40)

Ruts < ½” May Be Filled

With Scratch Course

Full Width Lane

Pavement

o o o o o o o o o o

Steel Strike Off Scratches Surface

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Applying Leveling

(42)

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Reprofling Rutted

Wheelpaths

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 rutfill

to compensate for return traffic compaction

Ruts 1/2” & over must use the rut box

(44)

Rut Filling Lay Down Box.

Generally a Type III gradation

is used for rut-flling

(45)

Rut Fill & Strike Of

(46)

(47)

Rut-flling

 BeforeBefore

(48)

(49)

(50)

(51)

Feathering up to the

_{Feathering up to the}

curb/fag

(52)

Smooth Ride

(53)

Good Straight Edge

(54)

Why do Surface

Treatments Fail?

 Improper road selectionImproper road selection

 Improper pavement Improper pavement

preparation preparation

 Lack of control of Lack of control of

materials during materials during

application

(55)

Delaminating/Pushing. No

(56)

The Right

Pavements

for

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Rutted Pavements

(66)

Rut Filled With

(67)

Raveled Surface.

(68)

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The Wrong

Pavements

for

(70)

Micro-Surfacing Can’t

Work Miracles…Bad,

(71)

Instances where pavements have

reached their “critical mass”.

Beyond preservation or any topical

treatments.

(72)

Bad. Draining issues.

(73)

(74)

Bad. Done. Blowing

(75)

Bad. What else can I say?

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(77)

2009 Micro-Surfacing in

Galesburg, IL with steel slag. 1

of 5

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2009 Micro-Surfacing in

Galesburg, IL with steel slag. 2

of 5

(79)

2009 Micro-Surfacing in

Galesburg, IL with steel slag.

Very little curb left to HMA

lifts over fag. 3 of 5

(80)

2009 Micro-Surfacing in

Galesburg, IL with steel slag.

Notice quality of existing

pavement. 4 of 5

(81)

2009 Micro-Surfacing in Galesburg, IL

with steel slag. Check texture. 60K yd2

in 2008, 105K yd2 in 2009. 5 of 5.

(82)

Knox County CH 8. 13 Mile Cape-Seal

2007/2008. Stage construction. Micro

with steel-slag on top of the new

polymer chip-seal. 1 of 5

(83)

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2009 Mason County Cape-Seal.

Manito Rd. 2 Sections totaling 8.8

miles. Crack-sealing+polymer

chip-seal+Micro. 1 of 10

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chip-seal+Micro.10 of 10

(97)

Benefts of

Micro-Surfacing

 Restoration of surface propertiesRestoration of surface properties

& skid numbers& skid numbers

 Rut-fllingRut-flling

 Sealing & waterproofngSealing & waterproofng

 Delineates pavement markings Delineates pavement markings

& shoulders

 Usually no additional shoulder Usually no additional shoulder

aggregate is required, resulting in additional aggregate is required, resulting in additional savings

savings

versus other methodsversus other methods

(98)

Benefts of

Micro-Surfacing

 Preserves investmentPreserves investment  Quick trafic, Quick trafic,

1 hour or less 1 hour or less

 Minimizes trafic Minimizes trafic

disruptions disruptions

 Cost efectiveCost efective

 No appurtenance No appurtenance

adjustments adjustments

(99)

Typical

Micro-Surfacing Costs

 Price varies depending upon Price varies depending upon

treatment

 Surface courseSurface course

 Leveling & surfaceLeveling & surface  Rut-fll & surfaceRut-fll & 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, climate, pavement, construction quality, climate,

(100)

The Right Treatments

Estimated Life Extension

(101)

IL Counties who have used

Micro, or will be using it this

year.

Champaign Kendall McHenry Shelby

(102)

IL Municipalities who have

used Micro, or will be using it

this year.

Port Byron Rapids City Belvidere Neoga Port Byron Rapids City Belvidere Neoga

(103)

Summary

 Micro-surfacing, theMicro-surfacing, the right treatment for

right treatment for

 RutfllingRutflling  TexturizingTexturizing

 Improving skid resistanceImproving skid resistance  Sealing out moistureSealing out moisture

 Ultrathin surfacingUltrathin surfacing

 Quick construction & trafic returnQuick construction & trafic return