1、Designation: C126 14Standard Specification forCeramic Glazed Structural Clay Facing Tile, Facing Brick,and Solid Masonry Units1This standard is issued under the fixed designation C126; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specificatio
3、n covers structural clay load-bearingfacing tile and facing brick and other “solid masonry units”made from clay, shale, fire-clay, or mixtures thereof, with orwithout the addition of grog or other mixtures, having a finishconsisting of a ceramic glaze fused to the body at above1500F (655C) making th
4、em inseparable, excluding naturalsalt-glazed ware. Two grades, based on permissible variation inface dimensions, and two types are covered, as follows:1.1.1 Grade S (select), for use with comparatively narrowmortar joints.1.1.2 Grade SS (select sized or ground edge), for use wherevariation of face d
5、imension must be very small.1.1.3 Type I (single-faced units), for general use where onlyone finished face will be exposed.1.1.4 Type II (two-faced units), for use where two oppositefinished faces will be exposed.1.2 The property requirements of this specification apply atthe time of purchase. The u
6、se of results from testing of brickand tile extracted from masonry structures for determiningconformance or nonconformance to the property requirements(Section 5) of this standard is beyond the scope of thisspecification.1.3 Brick and tile covered by this specification are manu-factured from clay, s
7、hale, or similar naturally occurring sub-stances and subjected to a heat treatment at elevated tempera-tures (firing). The heat treatment must develop sufficient firedbond between the particulate constituents to provide thestrength requirements of this specification. (See firing and firedbond in Ter
8、minology C1232.)1.4 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.5 The values stated in inch-pound units are to be regardedas stand
9、ard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 The following precautionary caveat pertains only to thetest portion (Section 11.2) of this specification.This standarddoes not purport to address all
10、 of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Samp
11、ling and Testing Brick andStructural Clay TileC1232 Terminology of MasonryE84 Test Method for Surface Burning Characteristics ofBuilding Materials2.2 National Fire Protection Association Standard:3NFPA No. 255 Test for Surface Burning Characteristics ofBuilding Materials2.3 Underwriters Laboratories
12、, Inc. Standard:4UL No. 723 Flammability Studies of Cellular Plastics andother Building Materials used for Interior Finishes2.4 International Conference of Building Offcials Stan-dard:5UBC No. 8-1 Test Method for Fire Hazard Classification ofBuilding Material2.5 Government Standard:6Federal Standard
13、 Test No. 1411This 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 Feb. 1, 2014. Published March 2014. Originallyapproved in 1936. Last previou
14、s edition approved in 2013 as C126 13. DOI:10.1520/C0126-14.2For 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.3
15、Available from National Fire Protection Association (NFPA), 1 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.4Available from Underwriters Laboratories (UL), 333 Pfingsten Rd.,Northbrook, IL 60062-2096, http:/.5Available from the International Conference of Building Officials, 5360 S.Wor
16、kman Mill Rd., Whittier, CA 90601.6Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
17、 Conshohocken, PA 19428-2959. United States13. Terminology3.1 DefinitionsFor definitions relating to ceramic glazedstructural clay facing tile, facing brick, and solid masonryunits, refer to Terminology C1232.4. Ordering Information4.1 Orders for material under this specification shall includethe fo
18、llowing information:4.1.1 GradeWhen the grade is not specified, the require-ments for Grade S shall govern.4.1.2 TypeWhen the type is not specified, the require-ments for Type I shall govern.4.1.3 Sizes and ShapesThe sizes and shapes shall bespecified in accordance with Section 6.1.4.1.4 Color and T
19、exture of FinishThe color and texture ofthe finish shall be specified in accordance with Section 7.6.4.1.5 Back SurfacesUnless otherwise specified, smooth,scored, combed, or roughened unglazed backs and smoothunselected glazed backs or a mixture thereof, are furnished.When plaster is to be applied,
20、the back surface shall bespecified in accordance with Section 7.5.4.1.6 CoringUnless otherwise specified, either standard orspecial duty units as prescribed in Section 10 are furnished.4.1.7 OpacityWhere ceramic glazed units are not speci-fied as opaque, they need not meet the requirements for opaci
21、typrescribed in 7.4.2.4.1.8 Exterior UseWhere ceramic glazed units are re-quired for exterior use, the manufacturers shall be consulted formaterial suitable for this purpose.NOTE 1The requirements included in this specification do not coverminimum criteria for durability of units exposed to exterior
22、 environments.5. Physical Properties5.1 The compressive strengths (based on gross area) of theunits shall be not less than the values prescribed in Table 1.NOTE 2Special duty units may be available from various manufac-turers where higher compressive strengths are required.6. Dimensions and Permissi
23、ble Variations6.1 The face sizes of ceramic glazed units and fittingstherefore shall be as specified.NOTE 3The sizes shown in Table 2 are standard in the industry forsingle-faced units (Type I).6.2 Face Dimension TolerancesThe total variation in thefinished face dimensions of units shall be not more
24、 than thevalues shown in Table 3.6.3 Bed-Depth Dimension TolerancesThe total variationin the bed-depth (through the wall) dimension of units shall benot more than the value shown in Table 4.6.4 Warpage TolerancesThe maximum permissible devia-tion of the plane and the edges of the face of individual
25、unitsfrom a plane surface and from a straight line, respectively, shallnot exceed the value shown in Table 5.NOTE 4When convex units are laid upon a plane surface, the apparentvariation is greater than the actual variation from the plane of the unit.7. Finish and Appearance7.1 The body of the units
26、shall be free of cracks or otherimperfections which would impair the strength or durability ofthe masonry.7.2 Unless otherwise agreed upon between the purchaserand the seller, a delivery of brick or tile shall not contain morethan 3 % brick or tile that are chipped, cracked or broken.7.3 The finishe
27、d face (one face of stretcher units and thefinished faces of shapes) that will be exposed when in placeshall be covered with a ceramic glaze of uniform quality. Theglaze shall be free of chips, crazes, blisters, crawling, or otherimperfections detracting from the appearance of the finishedwall when
28、viewed from a distance of 5 ft (1.52 m) underdiffused lighting at right angles from the wall.NOTE 5The purchaser or his authorized representative shall beaccorded opportunity for sampling and inspecting units at the place ofmanufacture, prior to shipment.At least 10 days from the time of samplingsho
29、uld be allowed for completion of the tests. Unless otherwise specifiedin the purchase order, the cost of tests is typically borne as follows: If theresults of the tests show that the brick does not conform to therequirements of this specification, the cost is typically borne by the seller.If the res
30、ults of the tests show that the brick does conform to therequirements of this specification, the cost is typically borne by thepurchaser.7.4 Properties of Glaze:7.4.1 ImperviousnessAfter the imperviousness test, nostain seen from a distance of 5 ft (1.5 m) shall remain on orbeneath the surface, exce
31、pt a slight discoloration in thedepressions on matt, stippled, or mottled finishes.7.4.2 OpacityWhere opacity of finish is desired and sospecified, discoloration of the body shall not be visible throughthe glaze in the opacity test. Clear ceramic glazes and specialdecorative glazes shall not be requ
32、ired to meet this require-ment.7.4.3 Resistance to FadingThe color of the glaze shall notchange in the chemical resistance test. Finishes of metallic orspecial decorative glazes shall not be required to meet thisrequirement.7.4.4 Resistance to CrazingThe glaze shall not craze,spall, or crack when su
33、bjected to one cycle of autoclaving inthe crazing test.7.4.5 Flame Spread, Fuel Contribution and SmokeDensityBody and finish must withstand temperatures up to1900F (878C) without distortion or melting and rate “non-combustible.” When tested in accordance with the provisionsof Test Method E84, struct
34、ural facing tile shall measure 0 flamespread, 0 fuel contribution, and 0 smoke density. This testmethod is similar to that specified in NFPA No. 255, UL No.723, and UBC No. 8-1.7.4.6 Toxic FumesToxic fumes will not be released fromthe body or glaze finish at temperatures up to 1900F, andwhen tested
35、under Test Method E84.TABLE 1 Compressive Strengths of UnitsDirection ofCoringMinimum Average of FiveTests, psi (MPa)Individual Minimum, psi(MPa)VerticalHorizontal3 000 (20.7)2 000 (13.8)2 500 (17.2)1 500 (10.3)C126 1427.4.7 Hardness and Abrasion ResistanceGlaze must resistscratching by ordinary gla
36、ss or steel and be rated above five onthe Mohs Hardness Scale. When tested for abrasion, underwear index method No. 6192 (Federal Standard Test No. 141),using a standard Taber Abraser Model CS-17 calibrase wheeland a 1000 g weight for 1000 wear cycles, the glazed face shallhave a wear factor not in
37、excess of 15. Finishes of metallic orspecial decorative glazes shall not be required to meet thisrequirement.7.5 Plaster Base Finish:7.5.1 Unless otherwise specified by the purchaser, smooth,scored, combed or roughened-back units or a mixture thereofare furnished.7.5.2 When smooth, at least 90 % of
38、the tile area shall befree of glaze and the average absorption shall be not less than5 %, unless acceptable plaster adhesion bond test data isprovided.7.5.3 When scored, each groove shall be dovetailed andshall be not less than116 in. (1.6 mm) nor more than14 in.(6.4 mm) in depth, and not more than
39、1 in. (25.4 mm) in width.The area covered by the grooves shall not exceed 50 % of thearea of the scored faces.7.5.4 When combed, the tile shall be scarified, prior toburning, by mechanical means which shall make scarificationson the surface of the tile not less than116 in. (1.6 mm) normore than18 in
40、. (3.2 mm) in depth, and not more than14 in.(6.4 mm) apart. When roughened, the die skin on the face ofthe tile shall be entirely broken by mechanical means, such aswire cutting or wire brushing. (The die skin is visible withinthe cells of the tile.)7.6 The textures shall be mottled, stippled, or sm
41、ooth asspecified and the color of the finished surface shall be indicatedby a sample consisting of not less than three stretcher unitsrepresenting the range of shades.8. Number of Cells8.1 Requirements for number of cells apply to hollow unitsonly. Cells are hollow spaces enclosed within the perimet
42、er ofthe exterior shells having a minimum dimension of not lessTABLE 2 Size of Single-Faced UnitsSeriesDesignationSpecified Face DimensionsSpecified Thickness, in. (mm)Height, in. (mm) Length, in. (mm)4S 214 (57.2) 758 (193.7) 134 ,358,558,or758 (44.5, 92.1, 142.9, or 193.7)4W 758 (193.7) 758 (193.7
43、) 134 ,358,558,or758 (44.5, 92.1, 142.9, or 193.7)6P 358 (92.1) 1158 (295.3) 134 ,358,558,or758 (44.5, 92.1, 142.9, or 193.7)6T 5 (127) 111116 (296.9) 134 ,358,558,or758 (44.5, 92.1, 142.9, or 193.7)8W 758 (193.7) 1558 (396.9) 134 ,358,558,or758 (44.5, 92.1, 142.9, or 193.7)TABLE 3 Permissible Varia
44、tions in Face DimensionsNOTE 1Permissible variations for units having specified dimensionsmore than14 in. (6.4 mm) greater than shown in this table shall be thesame as for the next larger dimension.Specified FaceDimension, Return orReveal (Height,Length), in. (mm)Maximum DifferenceBetween Dimensiono
45、f Any Unit andthe Specified DimensionMaximum Differ-ence BetweenLargest and Small-est Unit in OneLot,Ain. (mm)If Larger,in. (mm)If Smaller,in. (mm)Grade S Units6 (152.4) and Under116 (1.6)332 (2.4)332 (2.4)Over 6 to 8(152.4 to 203.2)116 (1.6)18 (3.2)532 (4.0)Over 8 to 16(203.2 to 406.4)116 (1.6)532
46、(4.0)316 (4.8)Grade SSSelect Sized or Ground-Edge Units OnlyAny dimension116 (1.6)116 (1.6)18 (3.2)ASize of lot shall be determined by agreement between the purchaser and theseller.TABLE 4 Permissible Variation in Bed Depth DimensionsNOTE 1Permissible variations for units having specified dimensions
47、more than14 in. (6.4 mm) greater than shown in this table shall be thesame as for the next larger dimension.NOTE 2Variation in the bed depth of individual units is controlled bythe limitations on warpage. The thickness of a unit shall be consideredeither the maximum or minimum thickness, whichever i
48、s the farther fromthe specified dimension.Specified Bed DepthDimension (WallThickness), in. (mm)Maximum DifferenceBetween Dimensionof Any Unit andthe Specified DimensionMaximumDifferenceBetweenLargestand SmallestUnit in OneLot, in. (mm)AIf Larger,in. (mm)If Smaller,in. (mm)Type ISingle-Faced Units2
49、(50.8) and Under18 (3.2)18 (3.2)18 (3.2)Over 2 to 4(50.8 to 101.6)18 (3.2)316 (4.7)316 (4.7)Over 4 to 6(101.6 to 152.4)18 (3.2)14 (6.4)14 (6.4)Over 6 to 8(152.4 to 203.2)18 (3.2)516 (7.9)516 (7.9)Type IITwo-Faced Units8 (203.2) and Under18 (3.2)18 (3.2)18 (3.2)ASize of lot shall be determined by agreement between the purchaser and theseller.TABLE 5 Permissible WarpageNOTE 1Warpage tolerances for units having specified dimensionsmore than14 in. (6.4 mm) greater than shown
