5−13SECTION 502 FULL DEPTH CLEANING AND SEALING OF JOINTS AND CRACKS TWO AND ONE HALF (2½) INCHES NOMINAL WIDTH OR LESS IN PORTLAND CEMENT CONCRETE PAVEMENT
502.01 DESCRIPTION . This work consists of performing all operations required for cleaning and
sealing cracks and joints in existing Portland cem ent concrete pavement of 2½-inch nominal width or less at the locations indicated on the Plans or as directed by the Engineer , all in accordance with these Specifications. 502.02. MATERIALS.
a.Joint Seal. Poured joint seal material shall be hot poured asphalt rubber compound conforming to the requirements of AASHTO M173 and approved by the Engineer.
502.03 CONSTRUCTION METHODS. 502.03.1 Equipment. Equipment shall be subject to the approval of the Engineer and maintained
in satisfactory working condition at all times.
a.Cutter. Equipment for reshaping cracks shall be a vertical spindle type cutter.
b.Air Compressor. Air compressors shall be portable and capable of furnishing not less than 100 cubic feet of air per minute at not less than 90 pounds per square inch pressure at the nozzle. The compressor shall be equipped with traps that will maintain the compressed air free of oil and water.
c.Self-propelled Sweeper. A small self-propelled sweeper designed especially for use in cleaning highway and airfield pavements shall be used to remove debris, dirt, and dust from joints or cracks in concrete pavement.
d.Hand Tools shall consist of brooms, wire brushes, shovels, metal bars with chisel shaped ends, and any other tools which may be used to accomplish this work.
e.Melting Kettle. The unit used to melt the joint sealing compound shall be a double boiler, indirect fired type. The space between the inner and outer shells shall be filled with a suitable heat transfer oil or substitute having a flash point of not less than 550 OF. The kettle shall be equipped with a satisfactory means of agitating the joint sealer at all times. This may be accomplished by continuous stirring with mechanically operated paddles or by a continuous circulating gear pump attached to the heating unit. The kettle must be equipped with thermostatic control calibrated between 200 OF and 550OF.
f.Application System. The joint seal shall be placed by hot extrusion with a wand type instrument. The system shall include a flow control valve which allows all cracks to be filled to refusal. 502.03.2 Preparation of Cracks and Joints. All transverse and longitudinal joints and any cracks shall be sealed. Just prior to sealing, each joint or crack shall be thoroughly cleaned to the full 5−14 depth of the concrete pavement of all foreign material by compressed air. If accessible, the sides of the joints shall be wire-brushed and cleaned of all debris. The sides of the joints shall be surface dry. Poured joint sealing material shall not be placed unless approved by the Engineer. All material and debris removed from the joint or crack shall be immediately removed from the pavement surface by means of sweepers or hand brooms before sealing. No joint sealing shall be allowed until the joints are thoroughly dried or where either frost, snow or ice is present. 502.03.3 Application. The joint seal shall be applied by hot extrusion. All joints or cracks are to be filled to refusal so as to eliminate all voids or entrapped air. The hot seal shall completely fill the joint or crack, such that, after cooling, the level of the sealer will be flush with the pavement surface. Any depression in the seal shall be brought up to the specified limit by the further addition of hot seal. Care shall be taken in the sealing of the joints or cracks such that the final appearance will present a neat fine line. Overfilling of the joints will not be allowed, and spillage of the sealer should be avoided. All workmanship shall be of the highest quality, and all excess or spilled sealer must be removed from the pavement by approved methods and discarded.
502.04 METHOD OF MEASUREMENT. "Full Depth Cleaning and Sealing of Joints and Cracks
Two and One-Half Inches Nominal Width or Less in Portland Cement Concrete Pavement" will be measured by the number of linear feet of sealed jo ints or cracks actually repaired in accordance with the Plans and/or as directed by the Engineer. 502.05 BASIS OF PAYMENT. The accepted quantity of "Full Depth Cleaning and Sealing of Joints and Cracks Two and One-Half Inches Nominal Width or Less in Portland Cement Concrete Pavement" will be paid for at the contract unit price per linear foot as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials, equipment, and all incidentals required to finish the work, complete and accepted by the Engineer. SECTION 503 REPAIRING DETERIORATED/DAMAGED JOINTS GREATER THAN TWO AND ONE-HALF (2½) INCHES and LESS THAN OR EQUAL TO EIGHT (8) INCHES NOMINAL WIDTH IN FINISHED PORTLAND CEMENT CONCRETE PAVEMENT
503.01 DESCRIPTION . This work consists of performing all operations requir ed for cleaning, saw
cutting, concrete removal, rebuilding, and sealing joints in existing Portland cement concrete pavement that are greater than 2½-inches and less than, or equal to 8 inches nominal width at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications.
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 245–246 of 826.