1、Designation: C56 12Standard Specification forStructural Clay Nonloadbearing Tile1This standard is issued under the fixed designation C56; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parent
2、heses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers structural clay nonloadbearingtile (partiti
3、on, fireproofing, and furring).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 non-conformance to the property requirements (Sec-tion 4) of this standard is beyo
4、nd the scope of this specification.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 consti
5、tuents to provide the strength and dura-bility requirements of this specification. (See firing and firedbond in Terminology C1232.)1.4 Fireproofing tile intended for use in load-bearing ma-sonry shall conform to Specification C34.1.5 Tile intended for use in fireproofing structural membersshall be o
6、f such sizes and shapes that they can be erected tocover completely the exposed surfaces of the members.1.6 The text of this specification references notes andfootnotes that provide explanatory material. These notes andfootnotes (excluding those in tables and figures) shall not beconsidered as requi
7、rements of this specification.1.7 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:2C34 Specific
8、ation for Structural Clay Load-Bearing WallTileC67 Test Methods for Sampling and Testing Brick andStructural Clay TileC1232 Terminology of Masonry3. Classification3.1 One grade of tile is covered, designated Grade NB.3.2 If tile having a particular color (Note 1), texture, orfinish are desired, thes
9、e features shall be specified separatelyby the purchaser.NOTE 1Color of tile varies with the type of clay used and degree offiring; hence, it cannot be taken as indicative of classification until after ithas been related to absorption by actual tests.4. Physical Properties4.1 Structural clay nonload
10、bearing tile shall conform to thefollowing requirements for absorption:Absorption by 1-h Boiling,A%Grade Individual MaximumNB 28AThe range in percentage absorption for tile delivered to any one job shall be notmore than 12.5. Dimensions and Permissible Variations5.1 No overall dimension shall vary m
11、ore than 3 % over orunder the specified dimension for any form or size of tile. SeeNote 2.NOTE 2Purchasers and designers should ascertain the type and size oftile, modular or non-modular, available in the locality under considerationand should specify accordingly, stating the size and type represent
12、ed bythe available tile.Modular sizes are designated by the specified nominal dimensionswhich are equal to the actual manufactured dimensions plus the thicknessof one mortar joint, not to exceed12 in. (12.7 mm). For example, if the1This specification is under the jurisdiction of ASTM Committee C15 o
13、nManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.02 on Brick and Structural Clay Tile.Current edition approved Dec. 1, 2012. Published January 2013. Originallyapproved in 1924. Last previous edition approved in 2010 as C56 10. DOI:10.1520/C0056-12.2For referenced ASTM
14、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 In
15、ternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1modular, specified, or nominal dimensions of a unit are 4 by 8 by 12 in.(102 by 203 by 305 mm) the actual manufactured dimensions may be 312by 712 by 1112 in. (114.7 by 215.7 by 317.7 mm).6. Finish and A
16、ppearance6.1 All tile shall be reasonably free of laminations and ofcracks, blisters, surface roughness, and other defects thatwould interfere with the proper setting of the tile or impair thestrength or permanence of the construction.6.2 The finish of the outer face or faces of tile shall beplaster
17、-base finish or exposed wall finish as specified in theinvitation for bids.6.3 Surfaces of tile for plaster-base finish shall be smooth,scored, combed, or roughened. When smooth, the tile shall befree of glaze and the absorption shall be not less than 5 % normore than 25 %. When scored, each groove
18、shall be not lessthan116 in. (1.6 mm) nor more than116 in. (6.4 mm) in depth,and not more than 1 in. (25.4 mm) in width. The area coveredby the grooves shall not exceed 50 % of the area of the scoredfaces. When combed, the tile shall be scratched or scarifiedprior to firing by mechanical means which
19、 shall make scratchesor scarifications on the surface of the tile not less than116 in.nor more than18 in. (3.2 mm) in depth, and not more than14in. apart. When roughened, the die skin on the face of the tileshall be entirely broken by mechanical means, such as wirecutting or wire brushing. (The die
20、skin may be observed withinthe cells of the tile.)6.4 Surfaces of tile with exposed finish shall be smooth,combed, or roughened. Combed or roughened tile surfacesshall conform to the requirements for these finishes given in6.3.7. Number of Cells and Weights7.1 Partition and split furring tile shall
21、conform to therequirements prescribed in Table 1 for total number of cells,number of cells in the direction of wall thickness, and weightper unit area.7.2 The requirements for minimum weight per unit area ofstructural clay nonloadbearing tile shall be waived if theoverall thickness of the shells, me
22、asured between the inner andextreme outer surfaces of scored tile, is not less than58 in.(15.9 mm) and the mean shell thickness of unscored tile is notless than12 in. (12.7 mm). Thickness of webs shall be not lessthan12 in. (12.7 mm).8. Sampling and Testing8.1 The purchaser or his authorized represe
23、ntative shall beaccorded proper facilities for sampling and inspection of unitsboth at the place of manufacture and at the site of the work. Atleast 10 days from the time of sampling should be allowed forcompletion of the tests.8.2 Tile shall be sampled and tested in accordance with TestMethods C67.
24、NOTE 3Unless otherwise specified in the purchase order, the cost oftests is typically borne as follows: If the results of the tests show that thetile do not conform to the requirements of this specification, the cost istypically borne by the seller. If the results of the test show that the tile doco
25、nform to the requirements of this specification, the cost is typicallyborne by the purchaser.9. Rejection9.1 In case the shipment fails to conform to therequirements, the manufacturer is permitted to sort it, and newspecimens shall be selected by the purchaser from the retainedlot and tested at the
26、expense of the manufacturer. In case thesecond set of specimens fails to meet the requirements, theentire lot shall be rejected.10. Keywords10.1 clay; masonry construction; nonloadbearing tile; physi-cal properties; shale; tileTABLE 1 Number of Cells and Weight of TileDimensions, in. (mm)Minimum Num
27、ber of Cells Minimum Weight per Unit AreaA, lb/ft2(kg/m2)In UnitIn Directionof WallThicknessAverage IndividualPartition Tile2 by 12 by 12 51 by 305 by 305) 3 1 14 (68) 13 (63)3 by 12 by 12 (76 by 305 by 305) 3 1 15 (73) 14 (68)4 by 12 by 12 (102 by 305 by305)3 1 16 (78) 15 (73)6 by 12 by 12 (152 by
28、305 by305)3 1 22 (107) 21 (102)6 by 12 by 12 (152 by 305 by305)4 2 25 (112) 24 (117)8 by 12 by 12 (203 by 305 by305)4 2 30 (146) 28 (137)10 by 12 by 12 (254 by 305 by305)4 2 35 (161) 33 (161)12 by 12 by 12 (305 by 305 by305)4 2 40 (195) 38 (185)Split Furring Tile112 by 12 by 12 (38 by 305 by 305) 3
29、. 712 (37) 7 (34)2 by 12 by 12 (51 by 305 by 305) 3 . 8 (39) 712 (37)AThe weights given in the table are for scored tile. If any of the faces are unscored, the weights shall be increased 0.5 lb/ft2(2.4 kg/m2) of unscored area.C56122SUMMARY OF CHANGESCommittee C15 has identified the location of selec
30、ted changes to this standard since the last issue (C56 10)that may impact the use of this standard. (Approved Dec. 1, 2012.)(1) Selected sections within the standard were reorganizedusing the ASTM Form and Style manual as a guide.ASTM International takes no position respecting the validity of any pa
31、tent 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 subject to revisio
32、n 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 Headquarters. Your com
33、ments 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 is copyright
34、ed 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 serviceastm.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/).C56123
