1. The document describes different methods for recycling or strengthening existing asphalt materials in place, including cold in-place recycling (CIR), cold central plant recycling (CCPR), and full depth reclamation (FDR). 2. CIR is suitable for large arterial streets, highways, and runways needing partial or full replacement of the asphalt section. CCPR is for parking lots and residential streets inaccessible to CIR equipment. FDR is for fully reconstructing large parking lots or streets. 3. All three recycling methods provide cost savings of 30-50% compared to removing and replacing the existing pavement, by reusing the existing asphalt and base materials and strengthening them in place.

1. 1 0 2 4 0 S A N S E V A I N E W A Y , J U R U P A V A L L E Y , C A 9 1 7 5 2
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Recycling or Strengthening In-PlaceMaterials
Project ConditionsThatAre SuitableFor In-PlaceRecycling
1. Cold In-PlaceRecycling (CIR) Recycling “Train”))
 Arterial streets, Collector streets, Highways, and Runways that total
180,000 SF or biggerin size.
 Asphaltsection only is deteriorating and needs to be partiallyor fully
replaced.
 Base or subgradeis in good stablecondition (isolated areas of dig-outs
are okay as long as they are a small proportion of total project/>25%)
 TypicallyCIR willsavea minimum of 30% and providea longerlife
cycle when compared to a grind and overlay(millandfill)type of
remove and replaceconstruction method.
 Instead of paying a contractor to remove and haul awayyour old
asphaltasset that is worth $25 to $45/ton, CIR willturn the old asphalt
asset that has alreadybeen paid for, into a new base course asphalt
section. This recycled base course section willsubsequentlybecapped
by a thinner virgin hot mix or rubberized hot mix asphaltsection.
 Typical cost to recycle old asphaltin to a new base course asphaltwith
(CIR) is $37/ton.
2. Cold Central PlantRecycling (CCPR)
 ParkingLots and Residential Streets that are inaccessibleto the (CIR)
“Train”that total 180,000SF or biggerin size.
 Asphaltsection only, or both asphaltsection and base/subgradesection
need to be reconstructed.
 If asphaltsection only need to be replaced, (CCPR)willsavea
minimum of 30% when comparedto a grind and overlaytype of remove
and replaceconstruction method.
 If there are subgradeor base failuresattributableto the pavement
failure, or the pavementsection needs to be increased because of
increased traffic loading-cementor limestabilization of the base
and/or subgradesection combined with(CCPR)to produce a new base
course asphaltsection willprovidecost savingsof 45% to 50% or more.

2.  Typical cost to recycle old asphaltintoa new base course asphalt
section with(CCPR)is $41-$45/ton.
3. Full Depth Reclamation (FDR)
 Parkinglots or streets of 20,000SF or biggerin size that need to be
fullyreconstructed (entire pavementsection inclusiveof asphalt, base
and/or subgradesection needs to be replaced).
 Instead of doing deep excavationsand removingthe entire existing
pavementsection, doing subgradepreparation, importingnew
aggregatebase, and paving a new asphaltsection- Removeonlywhatis
needed to makeroom for a new asphaltsection, then stabilizethe
remainingmaterialsin-placechemically(cementor lime), or
bituminously(asphaltemulsion, foamedasphalt)to providea stabilized
base section that has superior structural valuesto a ClassII aggregate
base.
 The stabilized layerwillbridgepotentiallyyieldingsubgradeconditions
that exist below and thatwould causeunforeseen costs/change orders
to remedy in a remove and replaceconstruction method.
 FDR willtakeup to half the timeto completecompared to a remove
and replaceconstruction method.
 FDR willminimizeimpacton utilitieswithminimizedexcavation
depths.
 FDR willsavea minimum of 30% or higher on the total project cost
compared to a removeand replace construction method.