1、Designation: C530 12C530 13Standard 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
2、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, nonloadbearing screen tile.1.2 The property requirements of this specification ap
3、ply at the time of purchase. The use of results from testing of tile extractedfrom masonry structures for determining conformance or nonconformance to the property requirements (Section 45) of thisspecification is beyond the scope of this standard.1.3 Tile covered by this specification are manufactu
4、red from clay, shale, or similar naturally occurring substances and subjectedto a heat treatment at elevated temperatures (firing). The heat treatment must develop sufficient fired bond between the particulateconstituents to provide the strength and durability requirements of this specification. (Se
5、e firing and fired bond in TerminologyC1232).1.4 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be considered as requirements of the specification.1.5 The values stated in in
6、ch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick and Structural Clay
7、 TileC1232 Terminology of Masonry3. Terminology3.1 DefinitionsFor definitions relating to structural clay nonloadbearing screen tile, refer to Terminology C1232.4. Classification4.1 Three grades of screen tile, based on relative durability, are covered as follows:NOTE 1Screen walls present many more
8、 exposed surfaces than other brick or tile walls, the question of durability and selection of grade may be morecritical in the screen walls. For this reason, these requirements are more conservative than for brick.4.1.1 Grade SEScreen tile exhibiting a uniformly high resistance to disintegration by
9、weathering or by freezing or thawingin the presence of moisture.4.1.2 Grade MEScreen tile exhibiting a moderate and somewhat nonuniform resistance to weathering. Grade ME tile exhibitgood durability in areas of mild to moderate exposure but may not be adequate for severe exposures.4.1.3 Grade NEScre
10、en tile for interior use (no exposure to rain or freezing).4.1.4 When the grade is not specified, the requirements for Grade ME shall govern.4.1.5 Grade SE tile may be accepted in lieu of Grades ME or NE. Grade ME tile may be accepted in lieu of Grade NE.4.2 Two types of screen tile, based on dimens
11、ional tolerances, are covered as follows:4.2.1 Type STXScreen tile having a high degree of mechanical perfection and minimum size variation.1 This specification is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.02 on Br
12、ickand Structural Clay Tile.Current edition approved Dec. 1, 2012Dec. 1, 2013. Published December 2012December 2013. Originally approved in 1963. Last previous edition approved in 20102012as C530 10. 12. DOI: 10.1520/C0530-12.10.1520/C0530-13.2 For referencedASTM standards, visit theASTM website, ww
13、w.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of wh
14、at changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered th
15、e official document.*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 States14.2.2 Type STAScreen tile exhibiting characteristic architectural effects resulting from a larger deg
16、ree of size variation thanobtainable with Type STX.4.2.3 When type is not specified, the requirements for Type STA shall govern.5. Physical Properties5.1 DurabilityScreen tile shall meet the properties prescribed in Table 1 for resistance to absorption.6. Dimensions and Permissible Variations6.1 The
17、 dimensions of screen tile units shall be specified by the purchaser.NOTE 2Since screen tile are available in numerous sizes and shapes, the purchaser must specify these items. All sizes and shapes are not necessarilyavailable in all parts of the United States. Therefore, the specifier should ascert
18、ain local availability before specifying a particular unit size or pattern.6.2 No screen tile shall have greater dimensional variation than that permitted in Table 2.7. Finish and Appearance7.1 All tile shall be reasonably free from laminations and from defects that impair the placement, strength, o
19、r permanence ofthe construction.7.2 Tile surfaces shall be smooth, scored, combed, or roughened as specified by the purchaser.7.3 Color, texture, and pattern shall be specified by the purchaser. The texture and color range that will be visible in the finishedwall shall conform to an approved sample
20、of at least four representative units.NOTE 3Tile colors vary with clay type and degree of burning. Color does not indicate tile classification unless it has been related to absorption andstrength by tests.Because a multitude of individual unit patterns and wall patterns are available, screen-wall st
21、rength in every direction may not be related to thecompressive strength of individual units. Designers are cautioned to investigate each wall design thoroughly and to provide sufficient expansion andpressure-relieving joints to eliminate induced forces that might create critical stresses in screen-w
22、all units.8. Optional Requirements8.1 If the purchaser desires closer dimensional tolerances, restrictions on chippage or roughness, or other requirements notspecifically contained in this specification, he must so state in a supplemental specification.9. Sampling and Testing9.1 Sample and test tile
23、 in accordance with Test Methods C67.10. Keywords10.1 clay; masonry; nonloadbearing tile; physical properties; screen tile; shale; tileTABLE 1 Physical PropertiesGradeMaximum Water Absorption by 1-h Boiling,percentAverage of FiveTestsIndividualSE 10 12ME 14 16NE 20 24C530 132SUMMARY OF CHANGESCommit
24、tee C15 has identified the location of selected changes to this standard since the last issue (C530 12)that may impact the use of this standard. (December 1, 2013)(1) Added Terminology section (Section 3) and renumbered subsequent sections.SUMMARY OF CHANGESCommittee C15 has identified the location
25、of selected changes to this standard since the last issue (C530 10)that may impact the use of this standard. (Approved Dec. 1, 2012.)(1) Select sections within the standard were reorganized using the ASTM Form and Style manual as a guideline.ASTM International takes no position respecting the validi
26、ty of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subjec
27、t to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarter
28、s. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard i
29、s copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or servicea
30、stm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 2 Dimensions and Permissible VariationsSpecified Dimension,in. (mm)Maximum Permissible Variations fromSpecified Dimensions, Plus or Minus,in. (mm)TypeSTXTypeSTAUp to 4, incl. (101.6) 332 (2.38) 432 (3.18)Over 4 to 6 (101.6 to 152.4) 432 (3.18) 632 (4.76)Over 6 to 8 (152.4 to 203.2) 532 (3.96) 832 (6.35)Over 8 to 12 (203.2 to 304.8) 732 (5.56) 1032 (7.94)Over 12 (304.8) 932 (7.14) 1232 (9.52)C530 133
