1、Designation: C56 10Standard 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). One grade of tile iscovered, designated Grade NB.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 conform-ance or non-conformance to the property
4、requirements (Section3) of this standard is beyond 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 suf
5、ficient 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 Fireproofing tile intended for use in load-bearing ma-sonry shall conform to Specification C34.1.5 If tile having a p
6、articular color (Note 1), texture, orfinish are desired, these features shall be specified separatelyby the purchaser.NOTE 1Color of tile varies with the type of clay used and degree ofburning; hence, it cannot be taken as indicative of classification until afterit has been related to absorption by
7、actual tests.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 requirements of this specification.1.7 The values stated in inch-pound units are to be regardeda
8、s 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 Specification for Structural Clay Load-Bearing WallTileC67 Test Methods for Sampling and Testing Br
9、ick andStructural Clay TileC1232 Terminology of Masonry3. Absorption3.1 Structural clay non-load-bearing tile shall conform tothe following requirements for absorption:Absorption by 1-h Boiling,A%GradeIndividual MaximumNB 28AThe range in percentage absorption for tile delivered to any one job shall
10、be notmore than 12.4. Number of Cells and Weights4.1 Partition and split furring tile shall 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.4.2 The requirements for minimum weight per unit area ofs
11、tructural clay nonloadbearing tile shall be waived if theoverall thickness of the shells, measured 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
12、 lessthan12 in. (12.7 mm).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 June 1, 2010. Published June 2010. Originallyapproved in 1924.
13、Last previous edition approved in 2009 as C56 09. DOI:10.1520/C0056-10.2For 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 AST
14、M website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Dimensions and Permissible Variations5.1 No overall dimension shall vary more than 3 % over orunder the sp
15、ecified 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 represented bythe available tile.Modular
16、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) (see Section 6.) Forexample, if the modular, specified, or nominal dimensions of a unit are 4by 8 by 12 in. (102 by 203 b
17、y 305 mm) the actual manufactureddimensions may be 312 by 712 by 1112 in. (114.7 by 215.7 by 317.7 mm).6. Fireproofing Tile6.1 Tile intended for use in fireproofing structural membersshall be of such sizes and shapes that they can be erected tocover completely the exposed surfaces of the members.7.
18、Workmanship, Finish, and Appearance7.1 The finish of the outer face or faces of tile shall beplaster-base finish or exposed wall finish as specified in theinvitation for bids.7.2 Surfaces of tile for plaster-base finish shall be smooth,scored, combed, or roughened. When smooth, the tile shall befree
19、 of glaze and the absorption shall be not less than 5 % normore than 25 %. When scored, each groove 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 scoredf
20、aces. When combed, the tile shall be scratched or scarifiedprior to burning by mechanical means which shall makescratches or scarifications on the surface of the tile not less than116 in. nor more than18 in. (3.2 mm) in depth, and not morethan14 in. apart. When roughened, the die skin on the face of
21、the tile shall be entirely broken by mechanical means, such aswire cutting or wire brushing. (The die skin may be observedwithin the cells of the tile.)7.3 Surfaces of tile with exposed finish shall be smooth,combed, or roughened. Combed or roughened tile surfacesshall conform to the requirements fo
22、r these finishes given in7.2.8. Sampling and Testing8.1 The purchaser or his authorized representative 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 forc
23、ompletion of the tests.8.2 Tile shall be sampled and tested in accordance with TestMethods C67.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 specificatio
24、n, the cost istypically borne by the seller. If the results of the test show that the tile doconform to the requirements of this specification, the cost is typicallyborne by the purchaser.9. Visual Inspection9.1 All tile shall be reasonably free of laminations and ofcracks, blisters, surface roughne
25、ss, and other defects thatwould interfere with the proper setting of the tile or impair thestrength or permanence of the construction.10. Rejection10.1 In case the shipment fails to conform to the require-ments, the manufacturer is permitted to sort it, and newspecimens shall be selected by the purc
26、haser from the retainedlot and tested at the expense of the manufacturer. In case thesecond set of specimens fails to meet the requirements, theentire lot shall be rejected.TABLE 1 Number of Cells and Weight of TileDimensions, in. (mm)Minimum Number of Cells Minimum Weight per Unit AreaA, lb/ft2(kg/
27、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 305 by305)3 1 22 (107) 21 (102)6 by 12 by 12 (152 by 3
28、05 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 . 712 (37) 7 (34)2 by 12 by 12 (51 by 305 by 305) 3 .
29、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.C5610211. Keywords11.1 clay; masonry construction; nonloadbearing tile; physi-cal properties; shale; tileSUMMARY OF CHANGESCommi
30、ttee C15 has identified the location of selected changes to this standard since the last issue (C56 09)that may impact the use of this standard. (Approved Jun. 1, 2010.)(1) The title of Section 8 was changed from Sampling and TestUnits, and Note 3 was added.(2) Section 11, Expense of Tests, was dele
31、ted.ASTM International takes no position respecting the validity 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,
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33、ndardsand should be addressed to ASTM International Headquarters. 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 Com
34、mittee on Standards, at the address shown below.This standard is 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 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/).C56103
