1. Change Section Numbers When Used in Conjunction with Standard Specifications

05810B_D12-20-99

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1. Change section numbers when used in conjunction with Standard Specifications.

5.__EXPANSION JOINT COVER ASSEMBLIES

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PART 1.- GENERAL

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SUMMARY.-

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Scope.-This work shall consist of furnishing and installing vertical and horizontal expansion joint assemblies, fillers and sealers for expansion and seismic joints in accordance with the details shown on the plans and these special provisions.

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SUBMITTALS.-

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Product data.-Manufacturer’s descriptive data and installation instructions for vertical and horizontal expansion joint assemblies, seals and sealants shall be submitted for approval.

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PART 2.- PRODUCTS

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MANUFACTURERS.-

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Acceptable manufacturers.-Subject to these special conditions, acceptable manufacturers shall be D. S. Brown Co.; General Tire Engineered Construction Products; Watson Bowman and Acme Corp. (Wabco); or equal.

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MATERIALS.-

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General.-Expansion joint closures and seals shall be aluminum extrusions and neoprene or silicone rubber seals of the type and size to suit the construction as shown on the plans.

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Aluminum retainers and cover plates.-

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Aluminum retainers and cover plates shall conform to ASTM Designation: B221M, 6063T5, anodized, of the configuration and size indicated or recommended by the expansion control system manufacture.

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Visual seals.-

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Visual seal shall be dense neoprene or dense silicone synthetic rubber conforming to ASTM Designation: C864, 70 durometer hardness, plus or minus 5.

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Functional seal.-

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Functional seal shall be closed cell neoprene synthetic rubber conforming to ASTM Designation: C509, medium density.

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Fasteners.-

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Fasteners shall be the expansion joint assembly manufacturer’s standard corrosion resistant fasteners.

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Sealant.-

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Sealant shall be as recommended by the expansion joint assembly manufacturer.

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PART 3.- EXECUTION

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PREPARATION.-

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Surface preparation.-Supporting joint surfaces shall be prepared as recommended by the manufacturer. Edges of the substrate shall be level and sound.

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INSTALLATION.-

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General.-Expansion joint cover assemblies shall be installed and set to the proper width for the ambient temperature at the time of setting.

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Nominal width shall be based on an ambient width shown on the plans.

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Expansion joint cover assemblies shall be set according to the manufacturer’s recommendations.

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CLEANING.-

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General.-Unused materials, containers, and equipment shall be removed from the work area.

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Surfaces that are stained, marred or otherwise damaged shall be cleaned and repaired.