FULL DEPTH SLAB REPLACEMENT FOR CONCRETE PAVEMENTS
PART 1 GENERAL
1.1SECTION INCLUDES
A.Concrete Pavement full depth panel replacement.
1.2RELATED SECTIONS
A.Section 02752: Portland Cement Concrete Pavement
B.Section 03055: Portland Cement Concrete
C.Section 03058: Rapid Strength Concrete (RSC)
D.Section 03152: Concrete Joint Control
E.Section 03211: Reinforcing Steel and Welded Wire
1.3REFERENCES
A.AASHTO M 235: Epoxy Resin Adhesives
B.AASHTO T 97: Flexural Strength of Concrete (Using Simple Beam with
Third-Point Loading)
C.AASHTO T 160: Length Change of Hardened Hydraulic Cement Mortar
and Concrete
D.AASHTO T 413: Estimating the Early Opening Strength of Concrete
Pavements by Maturity Tests
E.ASTM C 309: Liquid Membrane-Forming Compounds for Curing Concrete
1.4DEFINITIONS Not Used
Full Depth Slab Replacement For Concrete Pavements
1.5SUBMITTALS
A.Sample of the dowel bar end caps for review.
B.Manufacture product data sheets for information for the following:
1.Epoxy resin adhesive
2.Dowel bar lubricant
3.Pavement bond breaker
4.Overcut repair epoxy
PART 2 PRODUCTS
2.1FULL DEPTH SLAB REPLACEMENT WITH PORTLAND CEMENT
CONCRETE (PCC)
A.Use AA(AE) or AA(P) concrete. Refer to Section 03055
1.Meet a 28 day flexural strength of 650 psi verified through trial
batch. Refer to AASHTO T 97
2.Meet a 28 day maximum percent shrinkage of 0.042 verified
through trial batch. Refer to AASHTO T 160.
2.2FULL DEPTH SLAB REPLACEMENT WITH RSC
A.Use RSC. Refer to Section 03058.
2.3CONCRETE CURING COMPOUND
A.Refer to ASTM C 309 Type 2, Class A for repairs with PCC
B.Refer to ASTM C 309 Type 2, Class B for repairs with RSC
2.4REINFORCING STEEL
A.Tie Bars
1.Use deformed epoxy coated reinforcing steel. Refer to Section
03211.
B.Dowel Bars
1.Use plain epoxy coated reinforcing steel. Refer to Section 03211.
2.Basket assemblies must meet the following requirements:
a.Use a U-shaped leg for the assembly frame.
b.Use a minimum of 0.306 inch diameter wire.
c.Epoxy coating is not required.
Full Depth Slab Replacement For Concrete Pavements
2.5EPOXY RESIN ADHESIVE
A.Use an epoxy resin adhesive according to AASHTO M 235.
1.Provide Type IV, Grade 3 for bonding dowel and tie bars.
2.Provide Type IV, Grade 1 for repairing saw overcuts.
3.Provide class of epoxy as appropriate for the temperature at time of
installation.
2.6DOWEL BAR LUBRICANT
A.Use lubricant consisting of paraffin wax, lithium grease, or other semi-
solid, inert lubricant.
2.7PAVEMENT BOND BREAKER
A.Use a double application of liquid curing compound, polyethylene plastic
sheeting, bituminous fiberboard or polyethylene foam.
2.8HOT POUR JOINT SEALANT
A.Use hot poured joint sealant according to Section 03152
PART 3 EXECUTION
3.1PREPARATION
A.Remove existing damaged pavement.
1.Establish and mark the extent and dimensions of the panel removal
as shown or as determined by the Engineer. Refer to PV Series Standard Drawings.
a.Replace the entire panel when replacing a partial panel if the
width of the remaining portion is less than the minimum shown.
2.Make full depth saw cuts around the perimeter of the rectangular
section to be removed.
a.Minimize saw overcuts.
3.Remove panels by lift-out method.
a.Use chains and lift pins to facilitate removal and minimize
disturbance of the base material.
4.Repair damage to adjacent slabs and underlying base courses
caused by removal operations.
5.Remove all loose particles of existing concrete.
Full Depth Slab Replacement For Concrete Pavements
B.Grade and compact the existing base.
1.Use the largest piece of vibratory or impact compaction equipment
practical.
2.Continue compaction until additional work does not improve the
measured density
C.Form any side that does not have an adjacent panel.
1.Form to match existing panels, providing a vertical edge.
D.Place Dowel and Tie Bars
1.Place bars in locations according to PV Series Standard Drawings.
a.Offset dowel bars six inch toward inside of panel from
existing bars left in place.
2.Drill holes mid-depth of the slab without causing damage to the
remaining pavement section and meet bar placement tolerances.
3.Drill multiple holes simultaneously with drills held horizontally in a
rigid frame.
a.Prevent drill bits from wandering.
4.Use compressed air to clean holes of dust, grease, and other
contaminants.
5.Inject epoxy resin adhesive into the back of the drilled hole.
a.Inject sufficient quantity to completely fill the void between
the bar and the outer limits of the drilled hole.
b.Rotate one full revolution while inserting bar.
c.Use retention rings to prevent resin from flowing out of the
hole.
6.Align bars horizontally and vertically to meet requirements of the
Standard Drawings and allow them to stabilize before mix placement.
7.Repair any bar coating damage with appropriate repair material.
8.Place tight fitting end caps made of non-metallic materials that
allow ¼ inch movement on protruding dowels used at expansion joints.
9.Coat protruding portion of dowel bar with dowel bar lubricant.
10.Remove and replace loose bars before placing concrete mix.
E.Prepare panel joints for concrete placement.
1.Maintain existing pavement joint layout.
2.Place a bond breaker on the existing pavement edges that become
transverse or longitudinal panel joints.
Full Depth Slab Replacement For Concrete Pavements
3.2PLACE CONCRETE
A.Place concrete according to Section 02752 for panels placed with PCC.
B.Place concrete according to Section 03058 for panels replaced with RSC.
3.3FINISH CONCRETE
A.Finish panels to ± ⅛ inch of existing profile.
1.Correct panel profiles in excess of ⅛ inch higher than the existing
pavement profile by surface grinding or removal and replacement.
2.Correct panel profiles in excess of ⅛ inch lower than the existing
pavement profile by removal and replacement of the panel.
B.Do not tool joints that are to be saw cut and sealed.
C.Texture the surface to match the existing pavement.
3.4CURE, PROTECT AND SAW CUT CONCRETE
A.Cure the concrete pavement.
1.Refer to Section 02752 when using PCC.
2.Refer to Section 03058 when using RSC.
B.Saw cut all previously existing joints to original dimensions. Refer to
C.Fill all sawing overcuts with repair epoxy.
D.Fill the joints to within ¼ inch of the finished surface with hot pour joint
sealant.
3.5DEFECTIVE PAVEMENT PANELS
A.Remove and replace defective panels. Refer to Section 02752.
3.6LIMITATIONS
A.Do not open to traffic until 3000 psi strength is reached. Verified by either:
1.Maturity Method – Refer to AASHTO T 413
2.Cast cylinders
3.Concrete Compressive Strength of 3500 psi is required in cold
weather.
END OF SECTION Full Depth Slab Replacement For Concrete Pavements
Full Depth Slab Replacement in other states
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Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 562–566 of 1,331.
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