Art. 449.01Removal and Replacement of Preformed Elastomeric Joint Seals SECTION 449. REMOVAL AND REPLACEMENT OF PREFORMED ELASTOMERIC JOINT SEALS FOR PAVEMENT
449.01 Description. This work shall consist of removing the existing joint seal
and replacing it with a new preformed elastomeric joint seal.
449.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Preformed Elastomeric Joint Seals for Pavement .............................. 1053.01
449.03 Equipment. The machine used to cut the joints shall be an approved
concrete saw. CONSTRUCTION REQUIREMENTS
449.04 Preparation. The existing joint shall be removed and the joint
reshaped to the dimensions shown on the plans. The edges shall be beveled to a smooth surface by either a cutting or grinding device attached to the saw blade following the sawing operation.
449.05 Installation. The joint shall be thoroughly cleaned prior to sealing.
When the joint is free of foreign material and dry, the preformed elastomeric joint seal shall be installed by an approved machine method so that no twisting, rolling, or misalignment with the opposite top edge occurs. The joint shall be sealed across the full width of the entire pavement with one piece of seal material. The seal shall be secured in place with a lubricant-adhesive applied to both sides of the seal or both faces of the concrete. Any adhesive on the top of the seal shall be removed. The seal shall be installed in a compressed condition below the bottom of the beveled edge and within 5/16 in. (8 mm) of the surface of the pavement.
449.06 Tolerances. During installation, the joint seal material will be checked
for stretching and compression by pre-marking the length and width of the seal prior to installation. The stretch and compression tolerances shall be as follows.
a.Stretch. The joint seal material may be stretched five percent or less.
b.Compression. The joint seal material may be compressed two percent or less. Once sealing operations have started, one joint per every twenty-five will be checked for stretch and compression. If an unsatisfactory condition is found, that seal and the seals on either side shall be removed until the condition disappears and the affected joints shall be replaced.
449.07 Method of Measurement. This work will be measured for payment as
follows.
b.Measured Quantities. This work will be measured for payment in feet (meters), measured along the joint.
449.08 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for REMOVAL AND REPLACEMENT OF PREFORMED ELASTOMERIC JOINT SEALS FOR PAVEMENT. SECTION 450. RELIEF JOINT
450.01 Description. This work shall consist of constructing a relief joint in
existing pavement.
450.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Hot-Poured Joint Sealer .................................................................... 1050.02
b.Preformed Expansion Joint Fillers ...................................................... 1051.09
450.03 Equipment. Equipment shall be according to the following.
a.Concrete Saw. The concrete saw shall be equipped with a diamond blade of sufficient size to saw pavements full-depth and be capable of accurately maintaining cutting depth and alignment.
b.Wheel Saw. The wheel saw shall be equipped with carbide tipped rotating cutters and be capable of accurately maintaining cutting depth and alignment. CONSTRUCTION REQUIREMENTS
450.04 General. The relief joint shall be formed by full-depth sawing of the
existing pavement with a concrete saw or a wheel saw. The joint shall be straight and perpendicular to the centerline, with a tolerance of 1 1/2 in. in 12 ft (40 mm in 3.6 m). Prior to installing the preformed expansion joint filler, the sawed faces of the pavement shall be cleaned with compressed air. If the sawing operation disturbs or displaces the subbase, the disturbed subbase shall be removed and replaced with compacted FA 1 or FA 2 to the bottom of the existing pavement. The preformed expansion joint filler shall be installed in a compressed condition in the sawed joint. The method used shall minimize damage to the filler. The hot-poured joint sealer shall be installed as shown on the plans and in the saw cut extensions created by the concrete saw. The hot-poured joint sealer shall be placed according to Article 420.12. The joint sealer shall cure to the satisfaction of the Engineer prior to opening to traffic.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 303–304 of 1,217. View official source ↗