ASTM C503-2005 Standard Specification for Marble Dimension Stone《大理石规格石料的标准规范》.pdf

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1、Designation: C 503 05Standard 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 ind

2、icates the year of last reapproval. Asuperscript epsilon (e) 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.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 artificiallyaggregated units composed of fragments, and also crushed andbroken stone.2. Referenced Documents

4、2.1 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 Test Method for Compressive Strength of DimensionStoneC 241 Test Method for Abrasion Resistance o

5、f Stone Sub-jected to Foot TrafficC 880 Test Method for Flexural Strength of DimensionStoneC 1353 Test Method Using the Taber Abraser for AbrasionResistance of Dimension Stone Subjected to Foot Traffic3. Terminology3.1 DefinitionsAll definitions are in accordance with Ter-minology C119.3.1.1 marble,

6、 na crystalline rock composed predomi-nantly of one or more of the following minerals: calcite anddolomite capable of taking a polish (see Terminology C119).4. Classification4.1 Dimension marble is classified as follows:4.1.1 I Calcite.4.1.2 II Dolomite.NOTE 1See Terminology C119for definitions of c

7、alcite and dolo-mite.5. Soundness5.1 Marbles are further classified into four “Soundness”groups. The basis of this classification is the characteristicsencountered in fabrication and has no reference whatsoever tocomparative merit or value. The classifications merely indicatewhat method of fabricati

8、on is considered necessary and accept-able in each instance, as based on standard trade practice.Marble is classified by 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, a

9、nd D, should be taken intoaccount when specifying marble, for all marbles are 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 So

10、undness Group A marble shouldbe used for structural, load bearing purposes.5.3.1 The four groups are:5.3.1.1 Group ASound marbles with uniform and favor-able working qualities; containing no geological flaws, voids,spalls, cracks, open seams, pits or other defects.5.3.1.2 Group BMarble similar in so

11、undness to Group A,but with less favorable working qualities; may have naturalfaults; and may require a limited amount of one or more of thefollowing: waxing3, sticking4, and filling5.5.3.1.3 Group CMarble with some variations in workingqualities; geological flaws, voids, and lines of separation are

12、common. It is standard practice to repair these variations byone or more of the following methods: waxing3, sticking4,1This specification is under the jurisdiction of ASTM Committee C18 onDimension Stone and is the direct responsibility of Subcommittee C18.03 onMaterial Specifications.Current editio

13、n approved June 1, 2005. Published July 2005. Originally approvedin 1962. Last previous edition approved in 2003 as C 503 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,

14、refer to the standards Document Summary 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 surface

15、sshinier.4Sticking describes the 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, 1

16、00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.filling5, or cementing. Liners6and other forms of reinforce-ment are used when necessary.5.3.1.4 Group DMarbles similar in soundness to GroupC, but containing a larger proportion of natural faults, maxi-mum variations

17、 in working qualities, and requiring more of thesame methods of finishing.3,4,5,66. 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, c

18、racks, open seams, 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 medium- to light-duty walkingsurfaces and ot

19、her interior applications.6.5 Soundness Group D marbles can be reinforced, filled orcemented for use on vertical interior applications and medium-to light-duty walking surfaces.7. Sampling7.1 Samples for testing to determine the characteristics andphysical properties shall be representative of the m

20、arble to beused.6A “liner” is usually a thin slab of stone cemented to the back of a piece offinished marble for reinforcing.C503052ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard

21、 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 responsible technical committee and must be reviewed every five years andif n

22、ot 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 consideration at a meeting of theresponsible technical committee, which

23、 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 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,Uni

24、ted 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).TABLE 1 Physical RequirementsNOTEThe material pro

25、perty values in Table 1 were established using samples prepared according to the individual test methods. Finishes, other thanthose specified in the individual test methods, may result in a deviation from established values.Physical Property Test Requirements Classification(s) Test Method(s)Absorpti

26、on 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 resistance, min, HAB,C,D10 I, II C 241/C 1353Flexural strength, min

27、, 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 minimum abrasion hardness of 12.0 isrecommended. Where two or more marbl

28、es 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 been changed. The new abrasive is currrently moreaggressive, resu

29、lting 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 standard specification requirements for abrasion resistance, which w

30、ere 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.C503053