Section 2542. Crack and
Joint Cleaning and
Sealing Filling (Portland Cement Concrete Pavement)
B. Crack and joint cleaning and
is intended to address longitudinal cracking, transverse cracking, and corner
breaks. Crack and joint cleaning and sealing
filling is not intended to clean or seal for durability (“D”) cracking or map cracking. Definitions for
these pavement distress types can be found in the ‘Distress Identification
Manual for the Long-Term Pavement Performance Program’ (Publication No.
FHWA-RD-03-031, dated June 2003, web address: (http://www.fhwa.dot.gov/publications/research/infrastructure/pavements/ltpp/reports/03031/03031.pdf/reports/03031/03031.pdf).
A. Use hot poured joint sealer and backer rod that meet the requirements of Article 4136.02.
B. Installation of preformed elastomeric joint seals meeting the requirements of Article 4136.02 may be required in the contract documents. Substitution of elastomeric joint seal material for poured joint sealer material will not be allowed unless specified otherwise in the contract documents.
1. Routing or Sawing Equipment.
a. Use power driven routing or sawing equipment, where required, capable of cutting the cracks to the required dimensions without excessive spalling of the adjacent surface.
b. Use power driven sawing equipment (wet or dry), where required, capable of sawing the sealant reservoir to the dimensions shown in the contract documents.
and Abrasive Blasting Cleaning Equipment. a. To remove existing joint sealer, debris, and loose
material from the crack or joint, use water cleaning equipment capable of
delivering water with a pressure of 2,000 psi (13.8 MPa) from a nozzle. b. Use abrasive blast equipment
capable of removing the existing sealant, saw slurry, silt, or other foreign
material from the vertical face of the crack or joint to the specified depth.
Ensure the equipment leaves a clean, dry, newly exposed concrete surface.
3. Air Compressors.
Use air compressors that provide moisture free and oil free air and are of sufficient size to blow sand and other foreign material from the crack or joint prior to placing the sealant material.
4. Equipment for Heating and Placing Sealant Material.
Use an oil jacketed, double boiler type, heating kettle or other thermostatically controlled equipment of a type approved by the Engineer, capable of heating the material to 400°F (205°C) and pumping the material into the prepared crack or joint.
5. Auxiliary Equipment.
Provide auxiliary equipment, such as brooms, scrapers, etc., as necessary to perform the work.
partial depth finish patch may be required when joints or cracks have edge
spalls or other distress greater than 3 inches (75 mm) in width. If not
otherwise included as part of the contract work, these areas will be designated
by the Engineer as extra work. Construct partial depth finish patches according
to Section 2530.
Seal Fill joints or cracks less than or equal to 3
inches (75 mm) in width without patching.
cracks and joints of existing joint sealer, vegetation, dirt, and all other
foreign material to the required depth
of the bottom of the backer rod. Sand blast the edges
throughout the proposed depth of the joint sealer, leaving a clean, dry, newly
exposed concrete surface on the vertical edges. This will require two passes of
the sand blasting operation for each joint and crack: one pass for each joint
or crack edge. Set the angle of approach of the sand blast nozzle to each
vertical face of the reservoir to be approximately 30 degrees. The sand blast
nozzle shall have a guide which inserts in the joint and assures positive
location and directional control of the nozzle.
3. Perform sand blasting just prior
to the application of the joint sealer. When cleaned joints or cracks are
contaminated before being sealed, reclean them by sand blast before sealing.
Rain will be considered contamination.
4. When required,
Pplace a backer rod
at the bottom of the joint or crack as a bond breaker. Install it dry. If the
width of opening exceeds the maximum size available, approved alternates of
bond breakers at the bottom of the crack or joint may be used.
cracks and joints in partial depth HMA finish patches
to 1/2 inch (13 mm), if widening is necessary
as needed to allow room for filling of the
joint or crack. Extend the cleaning and sealing
filling operation across the joint or
6. Prior to placing backer rod (when used) and joint sealer:
· Ensure cracks and joints are dry.
· Use compressed air to blow cracks and joints clean.
7. Fill joints and cracks to the level shown in the contract documents.
8. Heat, handle, and apply the sealer material according to the manufacturer's recommendations.
Rout or sSaw
cracks and joints with an average
opening of 3/8 1/2 inch ( 10
13 mm) or less to provide a minimum sealant reservoir of 3/8 inch (10
mm) in width by a nominal 1/2 inch (13 mm) in depth the full width and depth of the existing joint.
Sawed joint should not exceed 1/2 inch (13 mm)
10. Rout or saw cracks with an average opening of 1/2 inch (13 mm) or less, and place backer rod to provide a minimum sealant reservoir of 1/2 inch (13 mm) in width by a nominal 1/2 inch (13 mm) in depth.
11. For cracks and joints
with an existing width greater than
1/2 inch ( 10 13 mm), place
backer rod to a depth that will provide at least 5/8 1/2 inch ( 16 13
mm) clearance above the backer rod for the sealer.
12. Clean cracks and joints
of all foreign material to a depth necessary to accommodate the sealer material
and the backer rod,
to be when
used. Ensure backer rod is dry when placed.
1. When there is a separate item for traffic control, furnish all signs and traffic control devices, such as flaggers, barricades, traffic cones, warning lights, and pilot car signs (when required) according to Section 2528. Erect, maintain, and remove all traffic control devices.
2. Conduct the work on only one lane of the pavement width at a time.
1. When other work is included in the contract, sequence operations in the following order:
b. Longitudinal subdrains,
d. Installation of retrofit load transfer,
e. Grinding or milling, and then
f. Crack and joint
joint and crack
sealing filling only when the ambient air and pavement
surface temperatures are above 40°F (4°C). When near this minimum temperature,
additional air blasting or drying time, or both, may be necessary to assure a
satisfactory bond to the joint surfaces.
3. Lanes may be opened to traffic only after the sealer has set sufficiently so it will not pick up under traffic. Blotting material may be applied to the sealer, but only after the sealer surface has set so as to avoid penetration of the blotting material into the sealer.
4. Remove old sealant, other debris, and saw slurry from the pavement surface before the pavement is opened to traffic.
5. Before the pavement is opened to traffic, clean the dry sawed or routed joints or cracks with a stream of air sufficient to remove all dirt, dust, and deleterious material that can adhere to the joint face. Complete this work within 3 hours after the joint or crack has been dry sawed or routed.
6. Clean wet sawed joints using high pressure water immediately after sawing to remove residue produced by the sawing operation.
joints and cracks within 5 working days after completion of any sawing or
routing or removing old joint sealant material or debris from the crack or
not perform crack and joint
filling after September 30. When joint
sealer cannot be placed in an otherwise completed joint or crack prior to this
date due to temperature or other conditions, temporarily seal fill
these joints or cracks with a joint sealer over the winter shutdown period.
Remove this seal and reclean and reseal fill
the joint or crack according to this specification during the next construction
season (at no additional cost to the Contracting Authority).
9. Do not overfill with sealant. Immediately remove sealant placed on the pavement surface.
Measurement will be as follows:
(kilometers), calculated to the nearest 0.1 mile (0.1 km), of main line
pavement and shoulders on which cracks and joints were cleaned and
Calculations will be based on the center line distance of main line, two-lane
pavement, corrected for main line pavement of more than two lanes, including
2. Shoulders 4 feet (1.2 meters) or less in width will not be measured separately for payment.
intersections, rest areas, and interchanges designated for cleaning and
the additional areas of widened pavement, ramps, storage lanes, turning lanes,
paved medians, and parking in rest areas will not be separately measured for
limits for which cleaning and
filling is intended for either pavement
or shoulders, no deductions will be made for bridges, intersections, or other
interruptions where cracks or joints are not to be cleaned and sealed filled.
Pounds (kilograms) of sealer material used in cracks and joints.
Payment will be the contract unit price as follows:
mile (kilometer) for pavement or shoulders on which the cracks and joints were
4 feet (1.2 meters) or less in width are incidental to the price bid for Crack
and Joint Cleaning and
Sealing Filling (PCC Pavement).
is full compensation for all labor, equipment, and materials (except for
sealer, but including backer rod) for cleaning and
sealing filling cracks
1. Per pound (kilogram). Price is predetermined.
2. Payment is full compensation for furnishing the sealer material only.
If not included otherwise as part of the contract work, payment for partial depth finish patches designated by the Engineer will be as extra work according to Article 1109.03, B.