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A. General: Comply with joint-sealant manufacturer's written installation instructions for products and <br /> applications indicated, unless more stringent requirements apply. <br /> B . Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants <br /> as applicable to materials, applications , and conditions indicated. <br /> C . Acoustical Sealant Application Standard: Comply with recommendations in ASTM C 919 for use of <br /> joint sealants in acoustical applications as applicable to materials, applications, and conditions indicated. <br /> D . Install sealant backings of type indicated to support sealants during application and at position required to <br /> produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum <br /> sealant movement capability. <br /> 1 . Do not leave gaps between ends of sealant backings . <br /> 2 . Do not stretch, twist, puncture, or tear sealant backings . <br /> 3 . Remove absorbent sealant backings that have become wet before sealant application and replace <br /> them with dry materials . <br /> E. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs <br /> of joints . <br /> F . Install sealants using proven techniques that comply with the following and at the same time backings are <br /> installed: <br /> 1 . Place sealants so they directly contact and fully wet 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 optimum <br /> sealant movement capability. <br /> G. Tooling of Nonsag Sealants : Immediately after sealant application and before skinning or curing begins , <br /> tool sealants according to requirements specified below to form smooth, uniform beads of configuration <br /> indicated; to eliminate air pockets ; and to ensure contact and adhesion of sealant with sides of joint. <br /> 1 . Remove excess sealant from surfaces adjacent to joints . <br /> 2 . Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor <br /> sealants or adjacent surfaces . <br /> 3 . Provide concave joint configuration per Figure 5A in ASTM C 1193 , unless otherwise indicated. <br /> 4 . Provide flush joint configuration where indicated per Figure 5B in ASTM C 1193 . <br /> 5 . Provide recessed joint configuration of recess depth and at locations indicated per Figure 5C in <br /> ASTM C 1193 . <br /> a. Use masking tape to protect surfaces adjacent to recessed tooled joints . <br /> 3 .4 FIELD QUALITY CONTROL <br /> A. Field-Adhesion Testing : Field test joint-sealant adhesion to joint substrates as follows : <br /> 1 . Extent of Testing : Test completed elastomeric sealant joints as follows : <br /> a. Perform 10 tests for the first 1000 feet (3 00 m) of joint length for each type of elastomeric <br /> sealant and joint substrate. <br /> b . Perform 1 test for each 1000 feet (300 m) of joint length thereafter or 1 test per each floor <br /> per elevation. <br /> Wabasso Beach Park <br /> Indian River County <br /> DAA Project No . 6008 <br /> 07920 - 6 <br />