ASTM C212-2017 Standard Specification for Structural Clay Facing Tile《结构性粘土面砖的标准规格》.pdf

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1、Designation: C212 14C212 17Standard Specification forStructural Clay Facing Tile1This standard is issued under the fixed designation C212; 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 paren

2、theses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers structural clay load-bearingloadbeari

3、ng facing tile. Structural facing tile are tile designed for usein interior and exterior unplastered walls and partitions of buildings.1.2 The property requirements of this specification apply at the time of purchase. The use of results from testing of tile extractedfrom masonry structures for deter

4、mining conformance or nonconformance to the property requirements (Section 6) of this standardis beyond the scope of this specification.1.3 Tile covered by this specification are manufactured from clay, shale, or similar naturally occurring substances and subjectedto a heat treatment at elevated tem

5、peratures (firing). The heat treatment must develop sufficient fired bond between the particulateconstituents to provide the strength and durability requirements of this specification. (See firing and fired bond in TerminologyC1232.)1.4 The text of this specification references notes and footnotes w

6、hich 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 inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI

7、 units that are provided for information only and are not considered standard.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and

8、Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick and Structural Clay TileC1232 Terminology of Masonry3. Terminology3.1 DefinitionsFor definitions relating to st

9、ructural clay facing tile, refer to Terminology C1232.4. Classification4.1 Two types of structural clay facing tile are covered, as follows:4.1.1 Type FTXSmooth-face tile suitable for general use in exposed exterior and interior masonry walls and partitions, andadapted for use where tile low in abso

10、rption, easily cleaned, and resistant to staining are required, and where a high degree ofmechanical perfection, narrow color range, and minimum variation in face dimensions are desired.4.1.2 Type FTSSmooth- or rough-texture face tile suitable for general use in exposed exterior and interior masonry

11、 walls andpartitions and adapted for use where tile of moderate absorption, moderate variation in face dimensions, and medium color rangeare permitted, and where minor defects in surface finish, including small handling chips, are not objectionable.4.2 Two classes of structural clay facing tile are

12、covered, as follows: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 Brickand Structural Clay Tile.Current edition approved Feb. 1, 2014June 1, 2017. Published February 2014July 2017. Origina

13、lly approved in 1946. Last previous edition approved in 20132014 asC21213.14. DOI: 10.1520/C0212-14.10.1520/C0212-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to

14、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 what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes

15、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 the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Ha

16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.2.1 StandardTile suitable for general use in exterior or interior masonry walls and partitions.4.2.2 Special DutyTile suitable for general use in exterior or interior masonry walls and partitions, and designed to havesuperior

17、 resistance to impact and moisture transmission and to support greater lateral and compressive loads than standard tileconstruction.5. Ordering Information5.1 Orders for material under this specification shall include the following information:5.1.1 TypeSee 4.1.5.1.2 ClassSee 4.2. When class is not

18、specified, the requirements for standard tile shall govern. If special duty tile are desired,the words “special duty” shall be included in the specifications. Special duty tile shall be accepted in lieu of standard tile exceptwhere the extra weight is an important factor in the loading of supporting

19、 members.5.1.3 Texture and ColorSee Section 8.5.1.4 SizesSee Section 9. Sizes shall be as specified.5.1.5 Number of FacesIf two-face tile are desired, this shall be stated by the purchaser; otherwise, single-face tile may befurnished.NOTE 1See Section 13 for supplementary requirements applying to tw

20、o-face tile.6. Physical Properties6.1 Absorption:6.1.1 The tile shall conform to one of the requirements for water absorption of the type specified as prescribed in Table 1.6.1.2 For Type FTS tile for use in masonry not exposed to frost action or in exposed masonry walls with an outside facing of3 i

21、n. (76.2 mm) or more of stone, brick, or other masonry, limitations on absorption shall be waived.6.2 Compressive Strength:6.2.1 The tile shall conform to the requirements for compressive strength of the class specified as prescribed in Table 2.6.2.2 Special duty tile shall be accepted in lieu of st

22、andard tile except where the extra weight is an important factor in theloading of supporting members.7. Dimensions and Permissible Variations7.1 Tolerances on DimensionsThe average size of the tile furnished shall approximate closely the size specified in theinvitation for bids. The dimensions of in

23、dividual tile shall not differ from the specified standard dimensions for the type specifiedby more than the amounts given in Table 3.7.2 Tolerances on WarpageWarpage of face or edges of individual tile from a plane surface or from a straight line,respectively, shall not exceed the amounts shown in

24、Table 4 for the type specified.8. Finish and Appearance8.1 The body of all tile shall be of clay, shale, fire clay, or mixtures of these materials with or without admixtures, burned tomeet the requirements of this specification. The body of all tile shall be free of cracks longer than one fourth of

25、the dimension ofthe tile in the direction of the crack. The face or faces that will be exposed when in place shall be free of cracks that extend throughthe thickness of the face shell and free of chips that exceed the limits given in Table 5, except that percentages of the shipmentare allowed additi

26、onal chippage which shall not exceed the limits given in Table 6. The tile shall be free of other imperfectionsdetracting from the appearance of the finished wall when viewed under diffused lighting at a distance of 10 ft (3.04 m) for TypeFTX and at a distance of 15 ft (4.57 m) for Type FTS.8.2 Plas

27、ter Base FinishSurfaces of tile for plaster-base finish shall be smooth, scored, combed, or roughened. When smooth,the tile shall be free of glaze and the absorption shall be not less than 5 % . When scored, each groove shall be not less than 116in. (1.6 mm) nor more than 14 in. (6.4 mm) in depth an

28、d not more than 1 in. (25.4 mm) in width. The area covered by groovesshall not exceed 50 % of the area of the scored faces. When combed, the tile shall be scratched or scarified, prior to burning, bymechanical means which shall make scratches or scarifications on the surface of the tile not less tha

29、n 116 in. (1.6 mm) nor morethan 18 in. (3.2 mm) in depth, and not more than 14 in. apart. When roughened, the die skin on the face of the tile shall be entirelybroken by mechanical means, such as wire cutting or wire brushing. (The die skin is visible within the cells of the tile.)TABLE 1 Maximum Wa

30、ter AbsorptionType By 24-h Submersion in ColdWater, % By 1-h Boiling, %Average Individual Average IndividualFTX 7.0 9.0 9.0 11.0FTS 13.0 16.0 16.0 19.0C212 1728.3 Type FTXThe face or faces of all tile that will be exposed when in place shall have a smooth and unbroken natural diefinish. (The die fin

31、ish is visible within the cells of the tile.) The color range of the finished faces shall conform to an approvedsample consisting of not less than five stretcher tile fully representing the range of shade.8.4 Type FTSThe texture of the finished surface that will be exposed when in place shall confor

32、m to an approved sampleconsisting of not less than five stretcher tile, each representing the texture desired. The approximate color range shall be indicatedby an approved sample consisting of not less than five stretcher tile.NOTE 2Facing tile are not ordinarily available in uniform (straight range

33、) colors. Samples submitted for approval should include the extremes of thecolor ranges that will be furnished, unless full burning range (kiln run) is acceptable.9. Sizes and Shapes9.1 The tile shall be of the sizes and shapes specified.TABLE 2 Compressive Strength Based on Gross AreaClassEnd-Const

34、ruction Tile Side-Construction TileMinimum Averageof Five Tests, psi(MPa)IndividualMinimum, psi(MPa)MinimumAverage ofFive Tests,psi (MPa)IndividualMinimum, psi(MPa)Standard 1400 (9.7) 1000 (6.9) 700 (4.8) 500 (3.4)Special duty 2500 (17.2) 2000 (13.8) 1200 (8.3) 1000 (6.9)TABLE 3 Tolerances on Dimens

35、ionsSpecified Unit Dimension,in. (mm)Maximum Permissible Variation from SpecifiedUnit Dimension, plus or minus, in. (mm)FTX FTS3 (76.2) and under 116 (1.6) 332 (2.4)Over 3 to 4 (76.2 to 101.6), incl 332 (2.4) 216 (3.2)Over 4 to 6 (101.6 to 152.4), incl 216 (3.2) 316 (4.8)Over 6 to 8 (152.4 to 203.2)

36、, incl 532 (4.0) 416 (6.4)Over 8 to 12 (203.2 to 304.8), incl 732 (5.6) 516 (7.9)Over 12 to 16 (304.8 to 406.4), incl 932 (7.1) 616 (9.5)TABLE 4 Tolerances on WarpageMaximum Face Dimensions(Height or Length), in. (mm)Maximum Permissible Warpage,in. (mm)TypeFTXTypeFTS8 (203.2) and under 332 (2.4) 432

37、 (3.2)Over 8 to 12 (203.2 to 304.8), incl 432 (3.2) 632 (4.8)Over 12 to 16 (304.8 to 406.4), incl 632 (4.8) 832 (6.4)TABLE 5 Maximum Permissible Extent of Chippage From theEdges and Corners of Finished Face or Faces Into the SurfacesType Chippage in inches (millimetres) in fromEdge CornerFTX 14 (3.2

38、) 14 (6.4)FTS (smooth)A 14 (6.4) 38 (9.5)FTS (rough)B 516 (7.9) 12 (12.7)ASmooth texture is the unbroken natural die finish.BRough texture is the finish produced when the face is sanded, combed,scratched, or scarified, or the die skin on the face is entirely broken by mechanicalmeans, such as wire c

39、utting or wire brushing.TABLE 6 Percentages of Shipment Allowed Chippage OverMaximum Permissible in Table 5Type PercentageAllowable Chippage in inches(millimetres) in fromEdge CornerFTX 5 14 (6.4) 38 (9.5)FTS (smooth) 10 516 (7.9) 12 (12.7)FTS (rough) 15 716 (11.1) 34 (19.1)C212 17310. Coring10.1 Re

40、quirements as to coring shall apply to multicored tile only. Multicored tile (Fig. 1) shall contain hollow spaces (cores)which are enclosed within the perimeter of the exterior shells and have a cross-sectional area of not more than 112 in.2 (9.7 cm2).10.2 The type of coring is optional with each ma

41、nufacturer. The distance from the perimeter of the core to the face of the tileshall be not less than 34 in. (19.1 mm) except in tile that are designed to be split for fractional lengths where the maximum distancefrom the face of the tile to the perimeter of the kerfing cores shall be not less than

42、12 in. (12.7 mm).11. Size and Number of Cells11.1 Requirements as to number of cells in direction of wall thickness and as to shell and web thickness shall apply to hollowtile only. Hollow tile (Fig. 2) shall contain hollow spaces (cells) which are enclosed within the perimeter of the exterior shell

43、s andhave a minimum dimension greater than 12 in. (12.7 mm) and a cross-sectional area greater than 112 in.2 (9.7 cm2).End-construction tile are designed to be placed in the wall with axes of the cells vertical. Side-construction tile are designed tobe placed in the wall with the axes of the cells h

44、orizontal. Where end-construction tile are used on the side they shall conform tothe requirements of side-construction tile and vice versa.11.2 Hollow tile shall conform to the following requirements as to number of cells in the direction of wall thickness:Nominal Horizontal Minimum Number ofThickne

45、ss of Tile as Laid Cells in Directionin Wall, in. (mm) of Wall Thickness4 (101.6) 16 (152.4) 28 (203.2) 210 (254.0) 312 (304.8) 3The following tile shall be considered as having one additional cell in the direction of wall thickness:11.2.1 Standard double-shell tile, provided the combined width of t

46、he voids between exterior and interior side shells on bothsides of the tile is not less than 12 in. (12.7 mm) and the combined thickness of the short webs between inner and outer shells isnot greater than that of the long transverse webs holding the inner shells.11.2.2 All special duty double-shell

47、tile, also special duty solid and cored-shell tile having face shells at least 112 in. (38.1 mm)thick on both sides of the tile.11.3 Width of CellThe width of any cell in side-construction tile, measured in the direction of wall thickness, shall not exceed412 times the average overall thickness of e

48、ither the upper or lower bearing shells.12. Shell and Web Thickness12.1 Side Shells of Standard TileThe thickness of the side shells of standard tile shall be not less than the values shown inTable 7 applying to the direction of cells in the wall (see Fig. 2). The thickness of exposed end shells of

49、standard end-constructiontile shall be not less than the thickness of the side shells shown in Table 7. The net thickness of interior end shells forend-construction tile, exclusive of scoring, shall be not less than 12 in. (12.7 mm).12.2 Side Shells of Special-Duty TileThe thickness of the side shells of special duty tile shall be not less than the values shownin Table 7 for the proper direction of the cells in the wall (see Fig. 2). The thickness of end shells of special-duty end-constructiontile shall be not less