Perkerasan Jalan Raya Dengan Metode Micr
Micro-Surfacing used in
“Pavement Preservation
Practices”
The problem
Too many roads, not enough funds
The opportunity
A sound pavement preservation
program to optimize paving funds
Pavement Preservation
“Strategy including all activities to provide &
maintain serviceable roadways”
The right treatment,
on the right pavement,
at the right time
Lower life cycle costs, higher quality pavements
Keeping good pavements good
In essence, buying time
What is Pavement
Preservation?
Asset management
Preventive maintenance (PM) seals & protects
Protect investment
Enhance cost-efectiveness of treatments
Lower life cycle costs
Extend pavement life
Delay future deterioration
Enhance pavement performance
Improve functional condition
e.g. skid resistance
Reduce user delays
Get in, get out, stay out
Preventive Maintenance Cost
Savings
The Right Time
Pavement condition
Strategy to Minimize Costs
Preventive maintenance
treatments
Conventional overlay
Time or traffic
Condition
Efective Preventive
Maintenance
$1 for
preventive
maintenance
here
Time
Is 3 to 10
times
more cost
effective
than here
Micro-Surfacing
The Right Treatment For:
Restoring surface quality & skid resistance
Rut flling
Quick construction, quick trafic return
Weatherproofng
Sealing
Reducing oxidation
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.
What is Micro-Surfacing?
History
Developed in Europe in 1970’s with
the proprietary name of “RALUMAC.”
Introduced in U.S. in 1980’s and generically
named: “Micro-Surfacing”.
Now routinely used in more than 40 states
Used for rut flling & texturing.
Strictly a topical treatment. Will not correct
any structural or base problems.
Micro-Surfacing
A designed mixture of:
polymer modifed
emulsifed asphalt
100% crushed aggregate:
limestone, slag, trap-rock
mineral fller
water
other additives
Proportioned, mixed & uniformly spread over a
properly prepared surface
ISSA A-143
State DOT specifcations
ASTM D-6372
Micro-Surfacing
Components
Micro-Surfacing
Emulsion
Water
Additive
Mineral Filler
Aggregate
Micro-Surfacing
Emulsion
emulsifier
water
acid
polymer
asphalt
Polymer
Modified
Emulsion
MILL
Micro-Surfacing
Machine Schematic
Crushed Cement Polymer
aggregate additive Modified
water Emulsion
Water Flows
Spreader
box
Direction
Mixing time
15 to 45 seconds
Mixture Brown &
Homogeneous
Mixture Black
Breaking Time
60 to 120 seconds
Traffic in Approximately One Hour
Micro-Surfacing Machine
(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
9
1
2
5
3
4
7
8
6
11
10
Multi-Bladed Pugmill
Polymer Modifed
Residual Asphalt
Reduces temperature susceptibility
Polymer either mixed into the AC base,
or
co-milled with the AC in making the
emulsion
Minimum of 3% polymer solids based on
AC content of emulsion
IL-DOT uses an elastic recovery test to
determine % of polymer in AC base
Micro-Surfacing
Mix can be placed in thicker
lifts and still remain stable
Mix retains macro-texture
Mix can be “feathered” next
to the curb/fag
Quick setting for quick
trafic return. Usually 15
minutes to 1 hour
Enhanced durability
No dust, no loose stones,
no tracking
Aggregate is encapsulated in
the asphalt
Micro-Surfacing
Machine
Continuous Self-Propelled
Paver
with Support Units
Continuously Run &
Self-Propelled Paver
Loading Area. Aggregate
stock-pile, emulsion, water
tanks.
Support unit for continuous
paver.
Support unit: water tank, fowboy feed hydraulic drive,
emulsion tank.
Continuous paver waiting
for support unit.
Support unit coupled to paver.
Notice dark steel-slag
aggregate.
Adding Portland cement. Paver
meters 1 to 2% depending on
Micro mix-design.
Micro slurry being fed into
mixing box.
Continuous, seamless
Micro-Surfacing
application.
Finishing fnal pull.
The Micro-Surfacing
Process
Click to run movie clip
Construction
Quality Micro-Surfacing
Appropriate
Specifcations
Specifcations should
describe & match the
job
Specifcations should
describe & meet your
expectations
Surface Preparation
Crack sealing
Asphalt patching
Clean the surface
Pavement marking removal
Sweep - wash
Tape – paint
Cover the utilities
Remove refective pavement markers
Crack Filled Street:
polished,
good candidate.
Crack-flled, polished, some
oxidation. Good candidate.
Excellent pavement
integrity.
Cracked flled, great
candidate.
Pavement has excellent integrity.
If construction seam is not flled,
it will eventually fail. Excellent
candidate.
Polished, oxidized
pavement.
Some patches. Good
candidate.
Asphalt patch. Oxidized.
Well maintained pavement.
Road contaminants: dirt, mud,
sand, vegetation. Pavement
must be cleaned before
application.
Ruts < ½” May Be Filled
With Scratch Course
Steel Strike Off Scratches Surface
o
o
o
o
o
o
o
o
o
o
Pavement
Full Width Lane
The scratch coat is generally 6” less than
the width of the lane.
Applying Leveling
Course
Leveling Course Applied
Reprofling Rutted
Wheelpaths
For each inch of applied Micro-Surfacing mix,
add 1/8” to 1/4” crown to each rutfill
to compensate for return traffic compaction
Original Pavement Cross Section
Micro-Surfacing Mix
Crown
Micro-Surfacing Mix
Ruts in Wheelpath
Ruts 1/2” & over must use the rut box
Rut Filling Lay Down Box.
Generally a Type III gradation
is used for rut-flling.
Rut Fill & Strike Of
Setting strike-off
Operating Rut Box
Rut-flling
Before
After
Surface Course
Material Placement
Secondary Strike-Of
Feathering up to the
curb/fag
Smooth Ride
Textured Wearing Surface
Good Straight Edge
Lines
Why do Surface
Treatments Fail?
Improper road selection
Improper pavement
preparation
Lack of control of
materials during
application
Trafic control -----------
Working too late in the
season
Material incompatibility
Delaminating/Pushing. No
tack coat, tender mix?
The Right
Pavements
for MicroSurfacing
Interstates
Interstates
Major Arterials
Major Arterials
Secondary State Routes
Residential Streets
Rural Roads
Rural Roads
Rutted Pavements
With Minor Flushing
Rut Filled With
Surface Course
Raveled Surface.
Depending on severity
Micro-Surfacing at Night
The Wrong
Pavements
for MicroSurfacing
Micro-Surfacing Can’t
Work Miracles…Bad,
Bad, Bad!
Instances where pavements have
reached their “critical mass”.
Beyond preservation or any topical
treatments.
Bad. Draining issues.
Hydraulic pumping.
Bad.
Bad. Done. Blowing
chunks!
Bad. What else can I say?
Great CIR candidate.
Before & After
Micro-Surfacing
2009 Micro-Surfacing in
Galesburg, IL with steel slag. 1
of 5
2009 Micro-Surfacing in
Galesburg, IL with steel slag. 2
of 5
Galesburg, IL with steel slag.
Very little curb left to HMA
lifts over fag. 3 of 5
2009 Micro-Surfacing in
Galesburg, IL with steel slag.
Notice quality of existing
pavement. 4 of 5
2009 Micro-Surfacing in Galesburg, IL
with steel slag. Check texture. 60K yd2
in 2008, 105K yd2 in 2009. 5 of 5.
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
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 2 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 3 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 4 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 5 of 5
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 1 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 2 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 3 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 4 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 5 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 6 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 7 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 8 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 9 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro.10 of 10
Benefts of
Micro-Surfacing
Restoration of surface properties
& skid numbers
Rut-flling
Sealing & waterproofng
Delineates pavement markings
& shoulders
Usually no additional shoulder
aggregate is required, resulting in additional
savings
versus other methods
High performance wearing course
Improve pavement aesthetics
Benefts of
Micro-Surfacing
Preserves investment
Quick trafic,
1 hour or less
Minimizes trafic
disruptions
Cost efective
No appurtenance
adjustments
Night time placement
Typical
Micro-Surfacing Costs
Price varies depending upon
treatment
Surface course
Leveling & surface
Rut-fll & surface
Cape-Seal: additional chip-seal cost
Typical life - 5 to 12 years
Depends upon condition of pre-existing
pavement, construction quality, climate,
trafic and other factors
The Right Treatments
Estimated Life Extension
(years)
Treatment
Good
Fair
Condition Condition
(PCI=80)
(PCI=60)
Poor
Condition
(PCI=40)
Fog Seal
3-5
1-3
1-2
Chip Seal
7 - 10
3-5
1-3
Slurry Seal
7 - 10
3-5
1-3
Micro-surfacing
8 - 12
5-7
2-4
Thin HMA
10 - 12
5-7
2-4
IL Counties who have used
Micro, or will be using it this
year.
Carroll
Kane
Sangamon
Champaign Kendall
Coles
Knox
Whiteside
DeWitt
LaSalle
Iroquois
Lee
Jackson
Macon
Mason
McHenry Shelby
McLean
Monroe
Ogle
Peoria
IL Municipalities who have
used Micro, or will be using it
this year.
Erie
Sterling
Aledo
Streator
Fulton
Dixon
Galesburg Ashland
Savanna
Lanark
Geneseo Decatur
Port Byron Rapids City Belvidere Neoga
Hampton Milan
Naperville Carbondale
Durand
Moline
N. Aurora Danville
Rockford E. Moline Ottawa
Sycamore
Summary
Micro-surfacing, the
right treatment for
Rutflling
Texturizing
Improving skid resistance
Sealing out moisture
Ultrathin surfacing
Quick construction & trafic return
Cost-efective pavement preservation
“Pavement Preservation
Practices”
The problem
Too many roads, not enough funds
The opportunity
A sound pavement preservation
program to optimize paving funds
Pavement Preservation
“Strategy including all activities to provide &
maintain serviceable roadways”
The right treatment,
on the right pavement,
at the right time
Lower life cycle costs, higher quality pavements
Keeping good pavements good
In essence, buying time
What is Pavement
Preservation?
Asset management
Preventive maintenance (PM) seals & protects
Protect investment
Enhance cost-efectiveness of treatments
Lower life cycle costs
Extend pavement life
Delay future deterioration
Enhance pavement performance
Improve functional condition
e.g. skid resistance
Reduce user delays
Get in, get out, stay out
Preventive Maintenance Cost
Savings
The Right Time
Pavement condition
Strategy to Minimize Costs
Preventive maintenance
treatments
Conventional overlay
Time or traffic
Condition
Efective Preventive
Maintenance
$1 for
preventive
maintenance
here
Time
Is 3 to 10
times
more cost
effective
than here
Micro-Surfacing
The Right Treatment For:
Restoring surface quality & skid resistance
Rut flling
Quick construction, quick trafic return
Weatherproofng
Sealing
Reducing oxidation
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.
What is Micro-Surfacing?
History
Developed in Europe in 1970’s with
the proprietary name of “RALUMAC.”
Introduced in U.S. in 1980’s and generically
named: “Micro-Surfacing”.
Now routinely used in more than 40 states
Used for rut flling & texturing.
Strictly a topical treatment. Will not correct
any structural or base problems.
Micro-Surfacing
A designed mixture of:
polymer modifed
emulsifed asphalt
100% crushed aggregate:
limestone, slag, trap-rock
mineral fller
water
other additives
Proportioned, mixed & uniformly spread over a
properly prepared surface
ISSA A-143
State DOT specifcations
ASTM D-6372
Micro-Surfacing
Components
Micro-Surfacing
Emulsion
Water
Additive
Mineral Filler
Aggregate
Micro-Surfacing
Emulsion
emulsifier
water
acid
polymer
asphalt
Polymer
Modified
Emulsion
MILL
Micro-Surfacing
Machine Schematic
Crushed Cement Polymer
aggregate additive Modified
water Emulsion
Water Flows
Spreader
box
Direction
Mixing time
15 to 45 seconds
Mixture Brown &
Homogeneous
Mixture Black
Breaking Time
60 to 120 seconds
Traffic in Approximately One Hour
Micro-Surfacing Machine
(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
9
1
2
5
3
4
7
8
6
11
10
Multi-Bladed Pugmill
Polymer Modifed
Residual Asphalt
Reduces temperature susceptibility
Polymer either mixed into the AC base,
or
co-milled with the AC in making the
emulsion
Minimum of 3% polymer solids based on
AC content of emulsion
IL-DOT uses an elastic recovery test to
determine % of polymer in AC base
Micro-Surfacing
Mix can be placed in thicker
lifts and still remain stable
Mix retains macro-texture
Mix can be “feathered” next
to the curb/fag
Quick setting for quick
trafic return. Usually 15
minutes to 1 hour
Enhanced durability
No dust, no loose stones,
no tracking
Aggregate is encapsulated in
the asphalt
Micro-Surfacing
Machine
Continuous Self-Propelled
Paver
with Support Units
Continuously Run &
Self-Propelled Paver
Loading Area. Aggregate
stock-pile, emulsion, water
tanks.
Support unit for continuous
paver.
Support unit: water tank, fowboy feed hydraulic drive,
emulsion tank.
Continuous paver waiting
for support unit.
Support unit coupled to paver.
Notice dark steel-slag
aggregate.
Adding Portland cement. Paver
meters 1 to 2% depending on
Micro mix-design.
Micro slurry being fed into
mixing box.
Continuous, seamless
Micro-Surfacing
application.
Finishing fnal pull.
The Micro-Surfacing
Process
Click to run movie clip
Construction
Quality Micro-Surfacing
Appropriate
Specifcations
Specifcations should
describe & match the
job
Specifcations should
describe & meet your
expectations
Surface Preparation
Crack sealing
Asphalt patching
Clean the surface
Pavement marking removal
Sweep - wash
Tape – paint
Cover the utilities
Remove refective pavement markers
Crack Filled Street:
polished,
good candidate.
Crack-flled, polished, some
oxidation. Good candidate.
Excellent pavement
integrity.
Cracked flled, great
candidate.
Pavement has excellent integrity.
If construction seam is not flled,
it will eventually fail. Excellent
candidate.
Polished, oxidized
pavement.
Some patches. Good
candidate.
Asphalt patch. Oxidized.
Well maintained pavement.
Road contaminants: dirt, mud,
sand, vegetation. Pavement
must be cleaned before
application.
Ruts < ½” May Be Filled
With Scratch Course
Steel Strike Off Scratches Surface
o
o
o
o
o
o
o
o
o
o
Pavement
Full Width Lane
The scratch coat is generally 6” less than
the width of the lane.
Applying Leveling
Course
Leveling Course Applied
Reprofling Rutted
Wheelpaths
For each inch of applied Micro-Surfacing mix,
add 1/8” to 1/4” crown to each rutfill
to compensate for return traffic compaction
Original Pavement Cross Section
Micro-Surfacing Mix
Crown
Micro-Surfacing Mix
Ruts in Wheelpath
Ruts 1/2” & over must use the rut box
Rut Filling Lay Down Box.
Generally a Type III gradation
is used for rut-flling.
Rut Fill & Strike Of
Setting strike-off
Operating Rut Box
Rut-flling
Before
After
Surface Course
Material Placement
Secondary Strike-Of
Feathering up to the
curb/fag
Smooth Ride
Textured Wearing Surface
Good Straight Edge
Lines
Why do Surface
Treatments Fail?
Improper road selection
Improper pavement
preparation
Lack of control of
materials during
application
Trafic control -----------
Working too late in the
season
Material incompatibility
Delaminating/Pushing. No
tack coat, tender mix?
The Right
Pavements
for MicroSurfacing
Interstates
Interstates
Major Arterials
Major Arterials
Secondary State Routes
Residential Streets
Rural Roads
Rural Roads
Rutted Pavements
With Minor Flushing
Rut Filled With
Surface Course
Raveled Surface.
Depending on severity
Micro-Surfacing at Night
The Wrong
Pavements
for MicroSurfacing
Micro-Surfacing Can’t
Work Miracles…Bad,
Bad, Bad!
Instances where pavements have
reached their “critical mass”.
Beyond preservation or any topical
treatments.
Bad. Draining issues.
Hydraulic pumping.
Bad.
Bad. Done. Blowing
chunks!
Bad. What else can I say?
Great CIR candidate.
Before & After
Micro-Surfacing
2009 Micro-Surfacing in
Galesburg, IL with steel slag. 1
of 5
2009 Micro-Surfacing in
Galesburg, IL with steel slag. 2
of 5
Galesburg, IL with steel slag.
Very little curb left to HMA
lifts over fag. 3 of 5
2009 Micro-Surfacing in
Galesburg, IL with steel slag.
Notice quality of existing
pavement. 4 of 5
2009 Micro-Surfacing in Galesburg, IL
with steel slag. Check texture. 60K yd2
in 2008, 105K yd2 in 2009. 5 of 5.
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
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 2 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 3 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 4 of 5
Knox County CH 8. 13 Mile Cape-Seal
2007/2008. Stage construction. Micro
with steel-slag on top of the new
polymer chip-seal. 5 of 5
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 1 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 2 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 3 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 4 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 5 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 6 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 7 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 8 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro. 9 of 10
2009 Mason County Cape-Seal.
Manito Rd. 2 Sections totaling 8.8
miles. Crack-sealing+polymer
chip-seal+Micro.10 of 10
Benefts of
Micro-Surfacing
Restoration of surface properties
& skid numbers
Rut-flling
Sealing & waterproofng
Delineates pavement markings
& shoulders
Usually no additional shoulder
aggregate is required, resulting in additional
savings
versus other methods
High performance wearing course
Improve pavement aesthetics
Benefts of
Micro-Surfacing
Preserves investment
Quick trafic,
1 hour or less
Minimizes trafic
disruptions
Cost efective
No appurtenance
adjustments
Night time placement
Typical
Micro-Surfacing Costs
Price varies depending upon
treatment
Surface course
Leveling & surface
Rut-fll & surface
Cape-Seal: additional chip-seal cost
Typical life - 5 to 12 years
Depends upon condition of pre-existing
pavement, construction quality, climate,
trafic and other factors
The Right Treatments
Estimated Life Extension
(years)
Treatment
Good
Fair
Condition Condition
(PCI=80)
(PCI=60)
Poor
Condition
(PCI=40)
Fog Seal
3-5
1-3
1-2
Chip Seal
7 - 10
3-5
1-3
Slurry Seal
7 - 10
3-5
1-3
Micro-surfacing
8 - 12
5-7
2-4
Thin HMA
10 - 12
5-7
2-4
IL Counties who have used
Micro, or will be using it this
year.
Carroll
Kane
Sangamon
Champaign Kendall
Coles
Knox
Whiteside
DeWitt
LaSalle
Iroquois
Lee
Jackson
Macon
Mason
McHenry Shelby
McLean
Monroe
Ogle
Peoria
IL Municipalities who have
used Micro, or will be using it
this year.
Erie
Sterling
Aledo
Streator
Fulton
Dixon
Galesburg Ashland
Savanna
Lanark
Geneseo Decatur
Port Byron Rapids City Belvidere Neoga
Hampton Milan
Naperville Carbondale
Durand
Moline
N. Aurora Danville
Rockford E. Moline Ottawa
Sycamore
Summary
Micro-surfacing, the
right treatment for
Rutflling
Texturizing
Improving skid resistance
Sealing out moisture
Ultrathin surfacing
Quick construction & trafic return
Cost-efective pavement preservation