ASTM_C_1736_-_11.pdf

Designation:C173611Standard Practice forNon-Destructive Evaluation of Adhesion of InstalledWeatherproofing Sealant Joints Using a Rolling Device1This standard is issued under the fixed designation C1736;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 The non-destructive procedure described in this practiceinduces a depression(strain)in the sealant,creating an elon-gation of the sealant and a stress on the adhesive bond at thesealant to joint substrate interface.The primary purpose of thepractice is to reveal sealant adhesion anomalies not discernibleby visual examination,at the time of the evaluation,which mayaffect air infiltration resistance,or water infiltration resistance,or both,of the sealed joint.NOTE1The nondestructive procedure may require immediate repairof the sealant bead,if failure is identified.Appropriate materials andequipment should be available for this purpose.1.2 This practice is useful for the evaluation of adhesion ofweatherseals in joints that are backed with compressiblematerials such as backer rod.This practice is not as useful injoints with solid backing.1.3 The proper use of this practice requires a workingknowledge of the principles of sealants as applied in movementjoint applications.1.4 A sealant fails to perform as a weatherseal when itallows air,or water,or both,to infiltrate the joint.This practicedoes not evaluate the performance of an installed sealant as aweatherseal.This practice is intended to only evaluate thecharacteristics of the adhesive bond in a particular installation.NOTE2In addition to identifying adhesion characteristics of thesealant joint,this practice may provide the user with an indication of othercharacteristics and anomalies including,but not limited to,changes insealant depth,insufficiently sized or configured backer rods,cohesivefailures,entrapped air voids,and solid contaminants.Anomalies of thisnature may be interpreted and addressed by the evaluator.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 The committee with jurisdiction for this standard is notaware of any comparable standard published by other organi-zations.1.7This standard does not purport to address all of thesafety problems,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC1193 Guide for Use of Joint SealantsC1472 Guide for Calculating Movement and Other EffectsWhen Establishing Sealant Joint Width3.Terminology3.1 DefinitionsRefer to Terminology C717 for definitionsof the terms used in this standard.3.2 Definitions of Terms Specific to This Standard:3.2.1 target depression,nThe amount of depressionneeded to reveal sealant adhesion anomalies,determined eitherin field or in laboratory,during or prior to a sealant evaluation,when using a device with a rolling component.4.Significance and Use4.1 Many parameters contribute to the overall performanceof a sealant application.Some of the most significant param-eters are sealant joint geometry,joint movement,joint design,sealant movement capability,quality of workmanship,qualityof adhesive bond,and quality of the sealant material.4.2 If a sealant fails in adhesion,there is no straightforwardprocedure for determining the cause.The adhesive failure maybe due to workmanship,the specific surface preparation used,the specific sealant used,poor joint design,poor bondchemistry,or other causes.Comprehensive information for theuse of joint sealants is provided in Guide C1193.4.3 This technique may not produce useful results when thesealant is in compression.Comprehensive information regard-ing the impact of temperature on sealant joint dimensions maybe found in Guide C1472.1This practice is under the jurisdiction of ASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.30 onAdhesion.Current edition approved July 1,2011.Published August 2011.DOI:10.1520/C1736-11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Testing Equipment5.1 Non-Permanent Marking EquipmentThe followingmay be used to perform location marking for repairs of failedsealant adhesion:5.1.1 Substrate MarkingRemovable non-residue tape,non-permanent self adhesive labels,or other