EJB-Cold-In-Place-Recycling.pdf

8/10/2019 EJB-Cold-In-Place-Recycling.pdf

1/68

COLD IN-PLACE ASPHALTRECYCLING


2/68

What is Cold In-Place Recycling

! The milling of a deteriorated asphalt pavement

material that has reached the end of its useful life.

This includes asphalt wearing and asphalt basecourse material.

! This milling machine then cuts and sizes the old

asphalt. The material is then mixed in-place with

a new asphalt binder, paver laid and compacted tothe desired depth and scope of the project

specifications.


3/68

!Conserves energy and natural recourses!Environmentally friendly!Improves mix characteristics!Cracking eliminated or reduced

!Improves cross slope!Restores reveal to concrete curbs and gutters!Cost effective!Saves time

!May be performed under traffic

Features & Benefits


4/68

Equipment for CIR Train

!Emulsion tanker for CIR train.!Down cutting milling machine 10 foot

cutting width.

!Conventional paver 16 foot minimumscreed width

!Steel drum vibratory roller (12 ton)

!Pneumatic tired roller (25/30 ton).!Small milling machine for utilities


5/68

Bituminous Additives:

Asphalt Emulsion (with & without polymer)

Anionic Emulsions HFMS-2

HFMS-2s Cationic Emulsions CSS & CMS

Cutback Asphalts

Rejuvenating Agents

Foamed Asphalt

CIR Materials or Additive(s)


6/68

Asphalt pavementseventually will developdistress such as:

! Cracking

! Raveling

! Pot holes

! Poor Ride Quality

Traffic, weather andhardening of the asphaltbinder all contribute tothese problems.

Why Cold In-Place Recycling


7/68

Thermal Cracking

Fatigue Cracking

Patched

Dry, Raveled

Poor Rideability

CIR - Candidates


8/68

Core samples are essential in any

Cold In-Place Recycling project


9/68

Road Preparation for CIR

!Any damaged cross pipes should bereplaced.

!Drainage and water problems should beaddressed

!Any vegetation growing on the pavementshould be removed.

!Shoulder or pavement widening shouldtake place before CIR


10/68

! All meters and computers should be calibrated

! Recycling additive check on specifications and

compliance.

! Recycled mat smoothness

! Moisture added to RAP

! Compacted density

! RAP gradation

! Moisture content before overlay

! Recycling additive content

! Depth of pulverization/milling

Things to consider in a

CIR QC/QA Plan


11/68

Air Temperature of 50 Degrees F and rising is preferred.

Do not Cold In-Place Recycle when it is raining.

Weather Limitations


12/68

Single Unit Train


13/68

Traditional asphalt pavers are used. This unit has awindrow elevator, the mix is lifted into the hopper.

CIR - Pavement Lay down


14/68

CIR mix sent directly to paver

hopper


15/68

Both pneumatic and steel drum roller

are used for compaction


16/68

Sonic depth control system


17/68

Specialized milling for curb

reveal


18/68

Area along curb is excavated

P t i l d d b


19/68

Pavement is recycled and curb

reveal restored


20/68

Manhole and utility valve milling


21/68

Excavated manhole before recycling


22/68

Compaction of recycled asphalt

around manhole


23/68

CIR Pavement Widening

S i li d ill t


24/68

Specialized mill excavates

shoulder to desired de th

E t d h ld b kfill d ith


25/68

Excavated shoulder backfilled with

reclaimed asphalt millings or

aggregate

Sh ld fill t i l i l d ith


26/68

Shoulder fill material is recycled with

RAP from existing pavement


27/68

!The existing asphalt pavement properties may be enhanced withthe addition of aggregate or RAP. Not only can the mix propertiesbe improved, but additional structure may also be added to theasphalt pavement.

CIR Aggregate Application

RAP t dd d t i


28/68

RAP or aggregate added to increase

pavement thickness


29/68

Aggregate laid to grade by paver

Recycling train picks up aggregate


30/68

Recycling train picks up aggregate

and old as halt roadwa


31/68

Moyer Road 1992


32/68

Moyer Road 1992

P bl i d i h


33/68

Problems associated with

Moyer Road

!No drainage (natural or storm water

inlets)

!No crown or cross slope!No curbs

!Trees and utility poles at edge of

pavement!To many width changes in roadway


34/68

Moyer Road, existing problems

N b d t t t h


35/68

New curb and storm water catch

basin

G t it i


36/68

Gas, water, sanitary sewer services

repaired or replaced before CIR


37/68

CIR first pass along new curb

G d ti f C ld I Pl A h lt


38/68

Gradation of Cold In-Place Asphalt

Recycling (CIR)

Cold In-Place Asphalt Recycling


39/68

Cold In-Place Asphalt Recycling

before hot mix overla

M R d 2002


40/68

Moyer Road 2002

D l D t t f


41/68

Delaware Department of

Transportation

B d ti bl di hi l


42/68

Bad cross section, bleeding chip seal,

standing water

R li t ti d


43/68

Recycling restores cross section and

improves drainage

Alli t ki


44/68

Alligator cracking

8% percent cross slopes create water


45/68

8% percent cross slopes create water

problems

Old hi l fl hi


46/68

Old chip seal flushing

Old pavement is milled off the road


47/68

Old pavement is milled off the road

base

It i t ill th f ll d th


48/68

It is necessary to mill the full depth

of asphalt when slope exceeds 4%

RAP is then added to adj st cross


49/68

RAP is then added to adjust cross

slope to 2% or 3%

Milled asphalt pavement before


50/68

Milled asphalt pavement before

re-profiling with RAP

RAP paver laid before cold in place


51/68

RAP paver-laid before cold in-place

recycling


52/68

CIR Lorewood Grove Road

Cold In Place Recycled Asphalt


53/68

Cold In-Place Recycled Asphalt

Lorewood Grove Road

Old pavement & RAP material


54/68

Old pavement & RAP material

undergo CIR treatment

Cold In-Place Recycling before


55/68

Cold In Place Recycling before

compaction

Gradation of cold in-place recycled


56/68

Gradation of cold in place recycled

material & US quarter

Completed cold in place recycled


57/68

Completed cold in-place recycled

asphalt base

Lorewood Grove Road cold in place


58/68

Lorewood Grove Road cold in-place

recycled asphalt pavement

Intermediate asphalt course laid


59/68

Intermediate asphalt course laid

above the CIR

New hot mix wearing course and


60/68

New hot mix wearing course and

aggregate shoulders

CIR Rural Highway


61/68

CIR Rural Highway


62/68

CIR - Business Districts


63/68

CIR Business Districts

CIR Runway, Taxiway, Parking


64/68

CIR Runway, Taxiway, Parking

Areas

CIR - Night Work


65/68

CIR - Night Work

CIR can


66/68

CIR can

Transform a

Roadway

Surface treatments that can be


67/68

Chip SealSlurry Seal

Micro-Surfacing

Hot or Cold Mix Overlay

Surface treatments that can be

placed on top of CIR


68/68

THANK YOU

!E.J. Breneman LP.

1117 Snyder Road

West Lawn, PA 19609

!Phone: 610-678-1913 or 610-636-0121

!e-mail: [email protected]

!web site: www.ejbreneman.com

Date post:	02-Jun-2018
Category:	Documents
Upload:	iciubotaru20002123
View:	215 times
Download:	0 times

EJB-Cold-In-Place-Recycling.pdf

Documents