Attachment 1: Specifications - Metropolitan Washington Airports ...

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DCA TERMINAL A IMPROVEMENTS (NEAR TERM) 10 AUGUST 2012 TASK ORDER 03: LOBBY IMPROVEMENTS – PKG 4 - CURBSIDE CHECK-IN RONALD REAGAN WASHINGTON NATIONAL AIRPORT PROJECT DT1203 2. Conduct field tests for each application indicated below: a. Each kind of sealant and joint substrate indicated. 3. Notify COTR seven days in advance of dates and times when test joints will be erected. 4. Arrange for tests to take place with joint-sealant manufacturer's technical representative present. a. Test Method: Test joint sealants according to Method A, Field-Applied Sealant Joint Hand Pull Tab, in Appendix X1 in ASTM C 1193 or Method A, Tail Procedure, in ASTM C 1521. 1) For joints with dissimilar substrates, verify adhesion to each substrate separately; extend cut along one side, verifying adhesion to opposite side. Repeat procedure for opposite side. 5. Report whether sealant failed to adhere to joint substrates or tore cohesively. Include data on pull distance used to test each kind of product and joint substrate. For sealants that fail adhesively, retest until satisfactory adhesion is obtained. 6. Evaluation of Preconstruction Field-Adhesion-Test Results: Sealants not evidencing adhesive failure from testing, in absence of other indications of noncompliance with requirements, will be considered satisfactory. Do not use sealants that fail to adhere to joint substrates during testing. 1.3 SUBMITTALS A. Product Data: For each joint-sealant product indicated. B. Samples for Initial Selection: Manufacturer's color charts consisting of strips of cured sealants showing the full range of colors available for each product exposed to view. C. Joint-Sealant Schedule: Include the following information: 1. Joint-sealant application, joint location, and designation. 2. Joint-sealant manufacturer and product name. 3. Joint-sealant formulation. 4. Joint-sealant color. D. Qualification Data (Information Only): For qualified Installer and testing agency. E. Product Certificates (Information Only): For each kind of joint sealant and accessory, from manufacturer. F. Sealant, Waterproofing, and Restoration Institute (SWRI) Validation Certificate (Information Only): For each sealant specified to be validated by SWRI's Sealant Validation Program. G. Preconstruction Compatibility and Adhesion Test Reports (Information Only): From sealant manufacturer, indicating the following: JOINT SEALANTS 07 92 00 - 2
DCA TERMINAL A IMPROVEMENTS (NEAR TERM) 10 AUGUST 2012 TASK ORDER 03: LOBBY IMPROVEMENTS – PKG 4 - CURBSIDE CHECK-IN RONALD REAGAN WASHINGTON NATIONAL AIRPORT PROJECT DT1203 1. Materials forming joint substrates and joint-sealant backings have been tested for compatibility and adhesion with joint sealants. 2. Interpretation of test results and written recommendations for primers and substrate preparation needed for adhesion. H. Field-Adhesion Test Reports (Information Only): For each sealant application tested. I. Warranties: Sample of special warranties. 1.4 QUALITY ASSURANCE A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project. B. Source Limitations: Obtain each kind of joint sealant from single source from single manufacturer. C. Product Testing: Test joint sealants using a qualified testing agency. 1. Testing Agency Qualifications: An independent testing agency qualified according to ASTM C 1021 to conduct the testing indicated. 2. Test according to SWRI's Sealant Validation Program for compliance with requirements specified by reference to ASTM C 920 for adhesion and cohesion under cyclic movement, adhesion-in-peel, and indentation hardness. D. Mockups: Install sealant in mockups of assemblies specified in other Sections that are indicated to receive joint sealants specified in this Section. Use materials and installation methods specified in this Section. E. Preinstallation Conference: Conduct conference at Project site. 1.5 PROJECT CONDITIONS A. Do not proceed with installation of joint sealants under the following conditions: 1. When ambient and substrate temperature conditions are outside limits permitted by jointsealant manufacturer or are below 40 deg F. 2. When joint substrates are wet. 3. Where joint widths are less than those allowed by joint-sealant manufacturer for applications indicated. 4. Where contaminants capable of interfering with adhesion have not yet been removed from joint substrates. JOINT SEALANTS 07 92 00 - 3
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TECHNICAL SPECIFICATIONS VOLUME I O
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