1、Designation: C1261 10C1261 13Standard Specification forFirebox Brick for Residential Fireplaces1This standard is issued under the fixed designation C1261; 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 brick intended for use as the lining in the fireboxes of residential fireplaces.1.2 Firebox brick are manuf
3、actured from clay, fire clay, shale, or similar naturally occurring earthy substances and subjected toa heat treatment at elevated temperatures (firing). The heat treatment must develop a fired bond between the particulate constituentsto provide the strength and durability requirements of this speci
4、fication (see Terminology C1232).NOTE 1Firebox brick are typically installed using ground fire clay mortar or refractory mortar. Mortar joints are typically 18 in. (3.2 mm) thick, justthick enough to accommodate dimensional variations in the firebox brick.1.3 The text of this specification reference
5、s notes and footnotes that provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be considered as requirements of this specification.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathem
6、aticalconversions to SI units that are provided for information only and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C24 Test Method for Pyrometric Cone Equivalent (PCE) of Fireclay and High Alumina Refractory MaterialsC67 Test Methods for Sampling and Testing Brick and St
7、ructural Clay TileC1232 Terminology of Masonry3. Terminology3.1 DefinitionsFor definitions of terms relating to this specification, see Terminology C1232.4. Materials, Manufacture, Materials and Finish Manufacture4.1 Clay, as it occurs in nature, differs in composition and physical properties. These
8、 differences are compensated for by varyingthe manufacture processes of forming and firing. In order to be satisfactory for firebox brick production, clays must have plasticitythat permits them to be shaped or molded when mixed with water. Clays must also have sufficient tensile strength to maintain
9、shape.4.2 Firebox brick are shaped during manufacture by molding, pressing, or extruding and cutting. Firebox brick shall be 100 %solid with no cores or frogs.4.3 Firebox brick shall be free of defects, deficiencies, and surface treatments, including coatings, that would interfere with theproper set
10、ting of the brick or significantly impair the strength or performance of the construction.5. Physical Properties5.1 Modulus of RuptureResidential firebox brick shall have a minimum modulus of rupture of 500 psi (3.45 MPa).5.2 Pyrometric Cone Equivalent (PCE)Firebox brick shall have a minimum pyromet
11、ric cone equivalent (PCE) of 13.1 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 Aug. 1, 2010Dec. 1, 2013. Published September 2010Decem
12、ber 2013. Originally approved in 1994. Last previous edition approved in 20072010as C1261 07.C1261 10. DOI: 10.1520/C1261-10.10.1520/C1261-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolu
13、me 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 what changes have been made to the previous version. Becauseit may not be technically possible to adequ
14、ately 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 the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM I
15、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Size and Tolerances Dimensions and Permissible Variations6.1 SizeThe size of the firebox brick shall be as specified by the purchaser. In the sample of units, no firebox brick shall departfrom the sp
16、ecified size by more than the maximum permissible variation given in Table 1.6.2 WarpageTolerances for warpage of face or edges of individual brick from a plane surface and from a straight line,respectively, shall not exceed the maximum permissible warpage given in Table 1.6.3 Visual InspectionThe b
17、rick, as delivered to the site, shall conform by visual inspection to the samples approved as thestandard of comparison. Minor indentations or surface cracks incidental to the usual method of manufacturing or the chippageresulting from the customary methods of handling in shipments and delivery shal
18、l not be deemed grounds for rejection.6.4 Variation of Appearance RequirementsWhen units are required for decorative installations that have appearancerequirements, that is, size variation, warpage, or chippage, other than those prescribed by this specification, the purchaser shallspecify the requir
19、ed maximum permissible variation in size or warpage and the allowable extent of chippage.6.5 WasteThe number of firebox brick in a delivery that are broken or otherwise fail to meet the requirements of Table 1 shallnot exceed 5 %.7. Finish and Appearance7.1 Visual InspectionThe brick, as delivered t
20、o the site, shall conform by visual inspection to the samples approved as thestandard of comparison. Minor indentations or surface cracks incidental to the usual method of manufacturing or the chippageresulting from the customary methods of handling in shipments and delivery shall not be deemed grou
21、nds for rejection.7.2 Variation of Appearance RequirementsWhen units are required for decorative installations that have appearancerequirements, that is, size variation, warpage, or chippage, other than those prescribed by this specification, the purchaser shallspecify the required maximum permissib
22、le variation in size or warpage and the allowable extent of chippage.7.3 WasteThe number of firebox brick in a delivery that are broken or otherwise fail to meet the requirements of Table 1 shallnot exceed 5 %.8. Sampling and Testing8.1 The brick shall be sampled in accordance with Test Methods C67.
23、 Test firebox brick in accordance with Test Methods C67for modulus of rupture, size, and warpage; and Test Method C24 for pyrometric cone equivalence.NOTE 2Unless otherwise specified in the purchase order, the cost of tests is typically borne as follows: If the results of the tests show that the bri
24、ckdo not conform to the requirements of this specification, the cost is typically borne by the seller. If the results of the tests show that the brick do conformto the requirements of this specification, the cost is typically borne by the purchaser.8.2 The manufacturer or the seller shall furnish sp
25、ecimens for tests. The place or places of selection shall be designated whenthe purchase order is placed.9. Keywords9.1 brick; firebox; fireplaceSUMMARY OF CHANGESTABLE 1 Tolerances on DimensionsSpecified Dimension,in. (mm)Maximum PermissibleVariation, in. (mm)MaximumPermissibleWarpage, in. (mm)3 (7
26、6) and under 116 (1.6) 132 (0.8)over 3 to 4 (76 to 102), incl 116 (1.6) 364 (1.2)over 4 to 6 (102 to 152), incl 332 (2.4) 116 (1.6)over 6 to 8 (152 to 203), incl 19 (3.2) 564 (2.0)over 8 to 12 (203 to 305), incl 532 (4.0) 18 (3.2)TABLE 1 Tolerances on DimensionsSpecified Dimension,in. (mm)Maximum Pe
27、rmissibleVariation, in. (mm)MaximumPermissibleWarpage, in. (mm)3 (76) and under 116 (1.6) 132 (0.8)over 3 to 4 (76 to 102), incl 116 (1.6) 364 (1.2)over 4 to 6 (102 to 152), incl 332 (2.4) 116 (1.6)over 6 to 8 (152 to 203), incl 19 (3.2) 564 (2.0)over 8 to 12 (203 to 305), incl 532 (4.0) 18 (3.2)C12
28、61 132Committee C15 has identified the location of selected changes to this standard since the last issue(C1261 07C1261 10) that may impact the use of this standard. (Approved(December Aug. 1, 2010.)1, 2013)(1) The word “distortion” was either deleted or replaced with the word “warpage.”Select secti
29、ons within the standard werereorganize using the “Form and Style for ASTM Standards” manual as a guideline.(2) Reference to Terminology C1232 was added to 1.2.(3) The units statement in 1.4 was updated.ASTM International takes no position respecting the validity of any patent rights asserted in conn
30、ection 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 revision at any time by the respons
31、ible 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 comments will receive careful co
32、nsideration 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 copyrighted by ASTM International, 100
33、 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/).C1261 133
