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CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12, 2020 <br />308 WEST FRANKLIN, CHAPEL HILL, NC <br /> <br />JOINT SEALANTS 079200 - 13 <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 />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2