ASTM_C_530_-_13.pdf

Designation:C53013Standard Specification forStructural Clay Nonloadbearing Screen Tile1This standard is issued under the fixed designation C530;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.Scope*1.1 This specification covers unglazed,structural clay,non-loadbearing screen tile.1.2 The property requirements of this specification apply atthe time of purchase.The use of results from testing of tileextracted from masonry structures for determining confor-mance or nonconformance to the property requirements(Sec-tion 5)of this specification is beyond the scope of this standard.1.3 Tile covered by this specification are manufactured fromclay,shale,or similar naturally occurring substances andsubjected to a heat treatment at elevated temperatures(firing).The heat treatment must develop sufficient fired bond betweenthe particulate constituents to provide the strength and dura-bility requirements of this specification.(See firing and firedbond in Terminology C1232).1.4 The text of this specification references notes andfootnotes which provide explanatory material.These notes andfootnotes(excluding those in tables and figures)shall not beconsidered as requirements of the specification.1.5 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC1232 Terminology of Masonry3.Terminology3.1 DefinitionsFor definitions relating to structural claynonloadbearing screen tile,refer to Terminology C1232.4.Classification4.1 Three grades of screen tile,based on relative durability,are covered as follows:NOTE1Screen walls present many more exposed surfaces than otherbrick or tile walls,the question of durability and selection of grade may bemore critical in the screen walls.For this reason,these requirements aremore conservative than for brick.4.1.1 Grade SEScreen tile exhibiting a uniformly highresistance to disintegration by weathering or by freezing orthawing in the presence of moisture.4.1.2 Grade MEScreen tile exhibiting a moderate andsomewhat nonuniform resistance to weathering.Grade ME tileexhibit good durability in areas of mild to moderate exposurebut may not be adequate for severe exposures.4.1.3 Grade NEScreen tile for interior use(no exposure torain or freezing).4.1.4 When the grade is not specified,the requirements forGrade ME shall govern.4.1.5 Grade SE tile may be accepted in lieu of Grades MEor NE.Grade ME tile may be accepted in lieu of Grade NE.4.2 Two types of screen tile,based on dimensionaltolerances,are covered as follows:4.2.1 Type STXScreen tile having a high degree of me-chanical perfection and minimum size variation.4.2.2 Type STAScreen tile exhibiting characteristic archi-tectural effects resulting from a larger degree of size variationthan obtainable with Type STX.4.2.3 When type is not specified,the requirements for TypeSTA shall govern.5.Physical Properties5.1 DurabilityScreen tile shall meet the properties pre-scribed in Table 1 for resistance to absorption.6.Dimensions and Permissible Variations6.1 The dimensions of screen tile units shall be specified bythe purchaser.NOTE2Since screen tile are available in numerous sizes and shapes,the purchaser must specify these items.All sizes and shapes are notnecessarily available in all parts of the United States.Therefore,thespecifier should ascertain local availability before specifying a particularunit size or pattern.1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.02 on Brick and Structural Clay Tile.Current edition approved Dec.1,2013.Published December 2013.Originallyapproved in 1963.Last previous edition approved in 2012 as C530 12.DOI:10.1520/C0530-13.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.2 No screen tile shall have greater dimensional variationthan that permitted in Table 2.7.Finish and Appearance7.1 All tile shall be reasonably free from laminations andfrom defects that impair the placement,strength,or perma-nence of the construction.7.2 Tile surfaces shall be smooth,scored,combed,orroughened as specified by the purchaser.7.3 Color,texture,and pattern shall be specified by thep