1、Designation: C 503 08aStandard Specification forMarble Dimension Stone1This standard is issued under the fixed designation C 503; 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 parentheses in
2、dicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the material characteristics,physical requirements, and sampling appropriate to the selec-tion of marble for general building and str
3、uctural purposes.Refer to Guides C 1242 and C 1528 for the appropriateselection and use of marble dimension stone.1.2 Dimension marble shall include stone that is sawed, cut,split, or otherwise finished or shaped into blocks, slabs or tiles,and shall specifically exclude molded, cast and artificiall
4、yaggregated units composed of fragments, and also crushed andbroken stone.2. Referenced Documents2.1 ASTM Standards:2C97 Test Methods for Absorption and Bulk Specific Grav-ity of Dimension StoneC99 Test Method for Modulus of Rupture of DimensionStoneC119 Terminology Relating to Dimension StoneC 170
5、Test Method for Compressive Strength of DimensionStoneC 241 Test Method for Abrasion Resistance of Stone Sub-jected to Foot TrafficC 880 Test Method for Flexural Strength of DimensionStoneC 1242 Guide for Selection, Design, and Installation ofDimension Stone Anchoring SystemsC 1353 Test Method Using
6、 the Taber Abraser for AbrasionResistance of Dimension Stone Subjected to Foot TrafficC 1528 Guide for Selection of Dimension Stone for Exte-rior Use3. Terminology3.1 DefinitionsAll definitions are in accordance with Ter-minology C119.4. Classification4.1 Dimension marble is classified as follows:4.
7、1.1 I Calcite.4.1.2 II Dolomite.NOTE 1See Terminology C119for definitions of calcite and dolo-mite.5. Soundness5.1 Marbles are further classified into four “Soundness”groups: A, B, C, and D. Classifications are based on theproperties encountered in fabrication and has no referencewhatsoever to compa
8、rative merit or value. Marble is classifiedby its producer.5.2 The Soundness classifications indicate what repairs maybe necessary prior to or during installation, based on standardtrade practices.5.3 The groupings A, B, C, and D, should be taken intoaccount when specifying marble, for all marbles a
9、re notsuitable for all building applications. This is particularly true ofthe comparatively fragile marbles classified under SoundnessGroups C and D, which may need additional fabrication beforeor during installation. Only Soundness Group A marble shouldbe used for exterior installations, or any app
10、lications thatrequire the stone panel to resist lateral loads or to bear weightwithout reinforcement.5.3.1 The four groups are:Group ASound marbles with uniform and favorableworking qualities; containing no geological flaws, voids,spalls, cracks, open seams, pits or other defects.Group B Marble simi
11、lar in soundness to Group A, butwith less favorable working qualities; may have some minorsmall holes or voids that may require a limited amount of oneor more of the following: waxing3, sticking4, and filling5.Group CMarble with some variations in working quali-ties; geological flaws, voids, and lin
12、es of separation arecommon. It is standard practice to repair these variations by1This specification is under the jurisdiction of ASTM Committee C18 onDimension Stone and is the direct responsibility of Subcommittee C18.03 onMaterial Specifications.Current edition approved Oct. 1, 2008. Published No
13、vember 2008. Originallyapproved in 1962. Last previous edition approved in 2008 as C 503 08.2For 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 S
14、ummary page onthe ASTM website.3Waxing refers to the practice of filling minor surface imperfections such asvoids or sand holes with melted shellac, cabinetmakers wax or certain polyestercompounds. It does not refer to the application of paste wax to make the surfacesshinier.4Sticking describes the
15、butt edge repair of a broken piece now generally donewith dowels, cements or epoxies. The pieces are “stuck” together, thus “sticking.”5Fillingvoids, such as those which occur naturally in marble, can be filled withpolyester compounds.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700
16、, West Conshohocken, PA 19428-2959, United States.one or more of the following methods: waxing3, sticking4,filling5, cementing, or other forms of additional reinforcement.Group D Marbles similar in soundness to Group C, butcontaining a larger proportion of natural faults, maximumvariations in workin
17、g qualities, and requiring more of the samemethods of finishing.66. Physical Properties6.1 Marble supplied under this specification shall conformto the physical requirements prescribed in Table 1.6.2 Marble for exterior dimension use shall be SoundnessGroup A stone, free of spalls, cracks, open seam
18、s, pits, or otherdefects that are likely to impair its structural integrity in itsintended use.6.3 Marble for interior use may be Soundness Group A, B,CorD.6.4 Soundness Group B and C marbles can be reinforced,filled or cemented for use on light- to medium-duty walkingsurfaces and other interior app
19、lications.6.5 Soundness Group D marbles can be reinforced, filled orcemented for use on vertical interior applications. This groupmay also be suitable for use in some light-to medium-dutyinterior pedestrian surface applications.7. Sampling7.1 Samples for testing to determine the characteristics andp
20、hysical properties shall be representative of the marble to beused.8. Keywords8.1 calcite; dolomite; marbleASTM 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 th
21、at 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 responsible technical committee and must be reviewed every five years andif not revised, either reappr
22、oved 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 consideration at a meeting of theresponsible technical committee, which you may attend. If you f
23、eel 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 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual re
24、prints (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).6A “liner” is usually a thin slab of stone cemented to the back of a piece
25、 offinished marble for reinforcing.TABLE 1 Physical RequirementsNOTEThe values in Table 1 were established using samples prepared according to the individual test methods. Finishes, other than those specifiedin the individual test methods, may result in a deviation from established values.Physical P
26、roperty Test Requirements Classification(s) Test Method(s)Absorption by weight, max, % 0.20 I, II C97Density, min, lb/ft3(kg/m3) 162 (2595) I CalciteAC97175 (2800) II DolomiteAC97Compressive strength, min, psi (MPa) 7500 (52) I, II C 170Modulus of rupture, min, psi (MPa) 1000 (7) I, II C99Abrasion r
27、esistance, min, HAB,C,D10 I, II C 241/C 1353Flexural strength, min, psi (MPa) 1000 (7) I, II C 880ASee Terminology C119for definitions of calcite and dolomite.BPertains to light foot traffic only. On commercial or institutional stairways, floors, and platforms subject to heavy foot traffic, a minimu
28、m abrasion hardness of 12.0 isrecommended. Where two or more marbles are combined for color and design effects, there should be no greater difference than 5 points in abrasion resistance.CThe supplier of the No. 60Alundum abrasive, Norton, has indicated that the formula for Norton treatment 138S has
29、 been changed. The new abrasive is currrently moreaggressive, resulting in lower abrasive hardness values (Ha) than when the standard was initially established. As such, care should be taken when interpreting Havaluesfrom tests using the new abrasive, particularly with regard to currentASTM stone st
30、andard specification requirements for abrasion resistance, which were developed whenthe original abrasive was still in use. Committee C18 is actively studying alternatives to address this issue.DAbrasion Resistance Test Method C 1353 will eventually replace Test Method C 241. It is not necessary to perform both tests. Availability of the proper equipment andmaterials by the testing laboratory may determine which test is performed.C 503 08a2
