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9/2/2020 <br /> <br />32 13 73 CONCRETE PAVING JOINT <br />SEALANTS <br />Page 3 of 4 <br />C. Install joint-sealant backings to support joint sealants during application and at position required <br />to produce cross-sectional shapes and depths of installed sealants relative to joint widths that <br />allow optimum sealant movement capability. <br />1. Do not leave gaps between ends of joint-sealant backings. <br />2. Do not stretch, twist, puncture, or tear joint-sealant backings. <br />3. Remove absorbent joint-sealant backings that have become wet before sealant application <br />and replace them with dry materials. <br />D. Install joint sealants immediately following backing installation, using proven techniques that <br />comply with the following: <br />1. Place joint sealants so they fully contact joint substrates. <br />2. Completely fill recesses in each joint configuration. <br />3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow <br />optimum sealant movement capability. <br />E. Tooling of Nonsag Joint Sealants: Immediately after joint-sealant application and before skinning <br />or curing begins, tool sealants according to the following requirements to form smooth, uniform <br />beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of <br />sealant with sides of joint: <br />1. Remove excess joint sealant from surfaces adjacent to joints. <br />2. Use tooling agents that are approved in writing by joint-sealant manufacturer and that do <br />not discolor sealants or adjacent surfaces. <br />F. Provide joint configuration to comply with joint-sealant manufacturer's written instructions unless <br />otherwise indicated. <br />3.4 CLEANING AND PROTECTION <br />A. Clean off excess joint sealant as the Work progresses, by methods and with cleaning materials <br />approved in writing by joint-sealant manufacturers. <br />B. 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 or <br />deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately and <br />replace with joint sealant so installations in repaired areas are indistinguishable from the original <br />work. <br />3.5 PAVING-JOINT-SEALANT SCHEDULE <br />A. Joint-Sealant Application: Joints within concrete paving and between concrete and asphalt paving <br />[<PJS-#> ]. <br />1. Joint Location: <br />a. Joints between concrete and asphalt paving. <br />b. Joints between concrete curbs and asphalt paving. <br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03