723— Deck Joints

723.1 Description

1 Furnish and install deck joints .

723.2 Materials

723.2.1 Preformed Joint Filler

1 Use either sponge rubber (Type I) or polyurethane- bonded recycled rubber (Type IV) preformed joint material that meets AASHTO M 153 or semi -rigid, closed- cell polypropylene foam that meets ASTM D8139. Other materials such as polyvinyl chloride (PVC) may be us ed, if the PVC meets the recovery, compression, and extrusion requirements in either AASHTO M 153 or ASTM D8139. Do not use non- extruding and resilient bituminous (AASHTO M 213) types of preformed joint filler. 2 Use only approved preformed joint material that is listed on Qualified Products List 81 . 3 Provide a manufacturer's certification to the RCE stating that the material conforms to SCDOT Specifications.

723.2.2 Elastomeric Compression Seals for Bridge Decks

1 Use preformed elastomeric compression seals for bridge deck joints consisting of flexible closed cell materials made of olefin polymers or blends of olefin polymers and other polymers meeting the requirements in the Plans. Install compression seals with adhesive meeting the requirements in the Plans. Install the seals according to the manufacturer's recommendations or as directed by the RCE. Do not splice or cut the seal unless indicated to do so on the Plans. 2 Provide a manufacturer's certification to the RCE stating that the material conforms to SCDOT Specifications.

723.2.3 Armor Plate

1 Provide steel armor plates that comply with AASHTO M 270/ASTM A709, Grade 50W. Ensure that studs used in the anchorage system meet Subsection 709.2.2 .

723.2.4 Roofing Felt

1 Use a standard self -adhesive roofing underlayment with at least a 60 mil. thickness.