Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Pavement Rehabilitation and Sealcoating
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- Joint sealing and spall repair on rigid (concrete) pavements - this standard addresses flexible (asphalt) surfaces only.
−## Full-depth structural patching of failed base or subgrade areas is a separate scope that shall be completed before surface rehabilitation begins; that patching is performed under [[sync/asphalt-paving]] and is not part of the surface treatment bid. {note}
+## Full-depth structural patching of failed base or subgrade areas is a separate scope that shall be completed before surface rehabilitation begins; that patching is performed under [[sync/asphalt-paving]] and is not part of the surface treatment bid.
# Referenced Standards {toc}
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## Select the governing rehabilitation strategy. {note}
+## The governing pavement rehabilitation strategy shall be specified, selected from the PCI survey and distress classification for the project area.
+
```datasheet
label: Rehabilitation strategy
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## State whether a pre-bid PCI survey is furnished by the Owner or performed by the Contractor. {note}
+## Responsibility for performing the pre-bid PCI survey shall be specified as either Owner-furnished or Contractor-performed and Owner-reviewed.
+
```datasheet
label: PCI survey responsibility
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## Confirm the project climate zone so the binder grade and seasonal constraints can be set. {note}
+## The project's IECC climate zone shall be specified so the binder grade and seasonal application constraints can be set.
+
```datasheet
label: Project climate zone (IECC)
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## Milling depth shall be controlled to correct cross-slope and re-establish positive drainage to inlets and channels, not merely to mill a constant thickness off the existing profile.
−## Edge and joint transitions at curb ramps, utility frames, drainage structures, and building entry aprons shall match the adjacent finished grade so that the grade change from milling does not create a trip hazard or an out-of-tolerance accessible route.
−
−## After milling and overlay, accessible routes, curb ramps, and accessible parking stalls shall not exceed a 2.0% cross-slope, verified against the civil drawings at every ramp and stall.
−
−## Finish grade at accessible routes, curb ramps, and accessible parking stalls shall be coordinated with the civil scope under [[sync/site-rough-grading]].
−
−## Select milling depth and edge treatment. {note}
−
```datasheet
label: Milling depth
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```datasheet
−label: Milled joint edge treatment
+label: Cross-slope correction by milling
type: radio
options:
− - Feathered taper
− - Saw-cut vertical edge
−default: Saw-cut vertical edge
+ - Constant-depth milling (no correction)
+ - Variable-depth milling to correct cross-slope and drainage
+default: Variable-depth milling to correct cross-slope and drainage
```
+## Edge and joint transitions at curb ramps, utility frames, drainage structures, and building entry aprons shall match the adjacent finished grade so that the grade change from milling does not create a trip hazard or an out-of-tolerance accessible route.
+
```datasheet
−label: Cross-slope correction by milling
+label: Milled joint edge treatment
type: radio
options:
− - Constant-depth milling (no correction)
− - Variable-depth milling to correct cross-slope and drainage
−default: Variable-depth milling to correct cross-slope and drainage
+ - Feathered taper
+ - Saw-cut vertical edge
+default: Saw-cut vertical edge
```
+## After milling and overlay, accessible routes, curb ramps, and accessible parking stalls shall not exceed a 2.0% cross-slope, verified against the civil drawings at every ramp and stall.
+
+## Finish grade at accessible routes, curb ramps, and accessible parking stalls shall be coordinated with the civil scope under [[sync/site-rough-grading]].
+
+## Select milling depth and edge treatment. {note}
+
# Hot-Mix Asphalt Overlay {toc}
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## A tack (bond) coat shall be applied to the milled surface before the overlay; the tack coat shall be allowed to break and cure before paving, and shall not be tracked off the surface.
−## Tack coat omission or under-application on a milled surface causes delamination of the overlay; the tack coat type and application rate shall be specified and verified, not left to the paving crew's discretion. {note}
+## Tack coat omission or under-application on a milled surface causes delamination of the overlay; the tack coat type and application rate shall be specified and verified, not left to the paving crew's discretion.
## The overlay-to-mill-depth ratio shall be a minimum of 3:1 to control longitudinal and reflective cracking; a thin overlay shall not be placed over a deep mill.
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## Select the overlay mix, thickness, and binder grade. {note}
+## The hot-mix asphalt overlay mix type shall be specified for the surface course.
+
```datasheet
label: Overlay mix type
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```
+## The percentage of reclaimed asphalt pavement content permitted in the surface course shall be specified.
+
```datasheet
label: RAP content in surface course
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## Working cracks designated for sealing shall be routed to a clean reservoir, typically 3/8 to 3/4 in. wide and 1/2 to 3/4 in. deep, exposing a clean aggregate face.
+```datasheet
+label: Routed reservoir width
+type: range
+unit: in
+min: 0.375
+max: 0.75
+step: 0.125
+default: 0.5
+```
+
## All cracks shall be cleaned of vegetation, dirt, and moisture (compressed air, hot air lance, or wire wheel as appropriate) immediately before sealant is placed.
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## Hot-applied crack sealant shall conform to the type required by ASTM D6690-21, or to ASTM D3405 where the project specifies the stricter low-temperature requirements.
−## Sealant shall be finished recessed approximately 1/8 in. below the pavement surface (flush to a maximum of 1/4 in. below); overbanding shall not be used where the pavement is scheduled for future milling.
−
−## Cold-applied crack filler (pourable, asphalt-based) shall be used only for non-working cracks narrower than approximately 1/4 in.; it shall not be substituted for hot-applied sealant on working cracks.
−
−## Select crack treatment type and reservoir. {note}
−
```datasheet
−label: Crack treatment method
−type: radio
−options:
− - Hot-applied sealing (working cracks, routed reservoir)
− - Cold-applied filling (narrow non-working cracks)
−default: Hot-applied sealing (working cracks, routed reservoir)
−```
−
−```datasheet
label: Hot-applied sealant type (ASTM D6690-21)
type: select
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```
−```datasheet
−label: Routed reservoir width
−type: range
−unit: in
−min: 0.375
−max: 0.75
−step: 0.125
−default: 0.5
−```
+## Sealant shall be finished recessed approximately 1/8 in. below the pavement surface (flush to a maximum of 1/4 in. below); overbanding shall not be used where the pavement is scheduled for future milling.
```datasheet
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```
+## Cold-applied crack filler (pourable, asphalt-based) shall be used only for non-working cracks narrower than approximately 1/4 in.; it shall not be substituted for hot-applied sealant on working cracks.
+
+```datasheet
+label: Crack treatment method
+type: radio
+options:
+ - Hot-applied sealing (working cracks, routed reservoir)
+ - Cold-applied filling (narrow non-working cracks)
+default: Hot-applied sealing (working cracks, routed reservoir)
+```
+
+## Select crack treatment type and reservoir. {note}
+
# Sealcoating {toc}
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## Select sealcoat base, coats, and rates. {note}
+## The sealcoat base type shall be specified, and use of coal-tar emulsion shall be verified against local ordinance before selection.
+
```datasheet
label: Sealcoat base type
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## Microsurfacing shall be specified in place of slurry seal where the surface must reopen to traffic quickly or where shallow rut filling is required.
−## Select the surface-treatment type and aggregate. {note}
−
```datasheet
label: Surface treatment type
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```
+## Select the surface-treatment type and aggregate. {note}
+
+## The aggregate type shall be specified, matched to the application: Type II for surface sealing or Type III for rut filling.
+
```datasheet
label: Aggregate type
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```
+## The number of passes for the slurry seal or microsurfacing application shall be specified.
+
```datasheet
label: Number of passes
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## Select chip seal / fog seal parameters. {note}
+## The chip seal or fog seal treatment type shall be specified for the pavement surface.
+
```datasheet
label: Treatment
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## The new surface shall be allowed to cure before pavement markings are applied - typically 7 days for paint and 30 days for thermoplastic - and the markings scope shall be sequenced accordingly under [[sync/pavement-markings]].
−## Coordinate the pavement-marking cure window so the markings contractor is not scheduled onto a green surface. {note}
−
```datasheet
label: Marking cure period before re-striping
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```
+## Coordinate the pavement-marking cure window so the markings contractor is not scheduled onto a green surface. {note}
+
# Testing {toc}
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default: None
```