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    ASTM C1195-2003 Standard Test Method for Absorption of Architectural Cast Stone《建筑用铸石的吸收性标准试验方法》.pdf

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    ASTM C1195-2003 Standard Test Method for Absorption of Architectural Cast Stone《建筑用铸石的吸收性标准试验方法》.pdf

    1、Designation: C 1195 03Standard Test Method forAbsorption of Architectural Cast Stone1This standard is issued under the fixed designation C 1195; 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

    2、 parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the sampling, preparation ofspecimens, and determination of the absorption of architecturalcast stone.1.2 This test met

    3、hod describes two procedures: (1) coldwater and (2) boiling water. The user of the test method shouldstipulate which is desired. If no stipulation is made, the coldwater procedure will be used.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. I

    4、t is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinform

    5、ation only.2. Referenced Documents2.1 ASTM Standards:C 642 Test Method for Specific Gravity, Absorption, andVoids in Hardened Concrete23. Terminology3.1 Definition:3.1.1 cast stonean architectural precast concrete buildingunit intended to simulate natural cut stone.4. Significance and Use4.1 This te

    6、st method is to be used in determining theabsorption of cast stone. Absorption is one measure of porosityof cast stone and, hence, its resistance to weathering andstructural stress.5. Sampling5.1 Select the sample to represent the cast stone underconsideration. The sample may be randomly selected by

    7、 thepurchaser or his authorized representative from each 500 ft3(14m3) of cast stone. Select a sample of adequate size to permit thepreparation of three absorption test specimens.6. Test Specimens6.1 For absorption tests take three specimens from thesample. Cut specimens from the finished surface of

    8、 the sampleto consist of one surface intended to be exposed to view andfive saw-cut surfaces, except that for faced cast stone, cut thespecimens through the faced surface to consist of approxi-mately equal parts of the facing material and the backupmaterial.6.2 Cut specimens from the sample with saw

    9、s. The testspecimens shall be 2-in. (50.8-mm) or 50-mm cubes. Theallowable size tolerance of the cubes shall be 618 in. (3.2 mm).7. Conditioning7.1 For this test, oven dry specimens at a temperature of 100to 110C (212 to 230F) until the loss in mass is not more than0.1 % in 24 h of drying. Remove sp

    10、ecimens from the oven andallow to cool in room temperature to a final temperature of 20to 25C (68 to 77F) before testing for absorption.8. Procedure8.1 Weigh the specimens immediately after conditioningand determine the mass to the nearest 0.1 g.8.2 Method A, Cold Water TestImmerse the specimenscomp

    11、letely in filtered or distilled water at 236 1.7C (73.4 63F) for 48 h. At the end of this period, remove them from thewater bath one at a time, surface dry with a damp cloth, anddetermine the mass to the nearest 0.1 g.8.3 Method B, Boiling Water TestImmerse the specimenscompletely in cold filtered o

    12、r distilled water for 48 h and thenimmerse in boiling water at 100 6 5C (2126 9F) for 5 h.Allow the specimens to cool to a final temperature of 20 to25C (68 to 77F), surface dry, and weigh to the nearest 0.1 g.9. Calculations9.1 Calculate the absorption of each specimen as follows:absorption, mass %

    13、 5 B 2 A!/A# 3 100 (1)where:A = mass of the dried specimen, andB = mass of the specimen after immersion.1This test method is under the jurisdiction of ASTM Committee C27 on PrecastConcrete Products and is the direct responsibility of Subcommittee C27.20 onArchitectural and Structural Products.Curren

    14、t edition approved April 10, 2003. Published July 2003.Originally published in 1991. Last previous edition approved in 1995 as C119591 (1995).2Annual Book of ASTM Standards, Vol 04.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.9

    15、.2 The absorption is the average absorption of the threespecimens.10. Report10.1 Report the following information:10.1.1 Identification of the sample,10.1.2 Mixture proportions,10.1.3 Test method,10.1.4 Absorption value,10.1.5 Name of the project,10.1.6 Date of casting, and10.1.7 Age of sample when

    16、test begins.11. Precision and Bias11.1 PrecisionThe precision of this test is similar to TestMethod C 642 for which data are not yet available. Theprecision of this test method will be stated when data becomeavailable.11.2 BiasSince there is no accepted reference materialsuitable for determining the

    17、 bias of results of this test method,no statement on bias is being made.ASTM 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 that determination of the validity of

    18、 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 reapproved or withdrawn. Your comments ar

    19、e 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 feel that your comments have not rec

    20、eived 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 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).C1195032


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