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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> of product and joint substrate. Compare these results to determine if adhesion <br /> passes sealant manufacturer's field-adhesion hand-pull test criteria. <br /> 4. Record test results in a field-adhesion-test log. Include dates when sealants were <br /> installed,names of persons who installed sealants,test dates,test locations,whether joints <br /> were primed, adhesion results and percent elongations, sealant fill, sealant configuration, <br /> and sealant dimensions. <br /> 5. Repair sealants pulled from test area by applying new sealants following same procedures <br /> used originally to seal joints. Ensure that original sealant surfaces are clean and that new <br /> sealant contacts original sealant. <br /> B. Evaluation of Field-Adhesion Test Results: Sealants not evidencing adhesive failure from <br /> testing or noncompliance with other indicated requirements will be considered satisfactory. <br /> Remove sealants that fail to adhere to joint substrates during testing or to comply with other <br /> requirements. Retest failed applications until test results prove sealants comply with indicated <br /> requirements. <br /> 3.5 CLEANING <br /> A. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods <br /> and with cleaning materials approved in writing by manufacturers of joint sealants and of <br /> products in which joints occur. <br /> 3.6 PROTECTION <br /> A. Protect joint sealants during and after curing period from contact with contaminating substances <br /> and from damage resulting from construction operations or other causes so sealants are without <br /> deterioration or damage at time of Substantial Completion. If, despite such protection, damage <br /> or deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately <br /> so installations with repaired areas are indistinguishable from original work. <br /> 3.7 JOINT-SEALANT SCHEDULE <br /> A. Joint-Sealant Application: Exterior joints in horizontal traffic surfaces. <br /> 1. Joint Locations: <br /> a. Control and expansion joints in brick pavers. <br /> b. Isolation and contraction joints in cast-in-place concrete slabs. <br /> C. Joints between plant-precast architectural concrete paving units. <br /> d. Joints in stone paving units, including steps. <br /> e. Tile control and expansion joints. <br /> f. Joints between different materials listed above. <br /> g. Other joints as indicated or shown on the drawings or as required for a complete <br /> water repelling building skin. <br /> 2. Urethane Joint Sealant: Single component,nonsag,traffic grade <br /> 3. Preformed Joint Sealant: Preformed foam sealant.. <br /> 4. Joint-Sealant Color: As selected by Architect from manufacturer's full range of colors. <br /> JOINT SEALANTS 079200 - 13 <br />