ASTM C1195-2018 Standard Test Method for Absorption of Architectural Cast Stone.pdf

1、Designation: C1195 03 (Reapproved 2011)C1195 18Standard Test Method forAbsorption of Architectural Cast Stone1This standard is issued under the fixed designation C1195; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la

2、st revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the sampling, preparation of specimens, and determination of the absorption of architectural cas

3、tstone.1.2 This test method describes two procedures: (1) cold water and (2) boiling water. The user of the test method should stipulatewhich is desired. If no stipulation is made, the cold water procedure will be used.1.3 The values stated in inch-pound units are to be regarded as standard. The val

4、ues given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to e

5、stablish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on

6、Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C642 Test Method for Density, Absorption, and Voids in Hardened Concrete3. Terminology3.1

7、 Definitions:3.1.1 cast stonean architectural precast concrete building unit intended to simulate natural cut stone.4. Significance and Use4.1 This test method is to be used in determining the absorption of cast stone. Absorption is one measure of porosity of caststone and, hence, its resistance to

8、weathering and structural stress.5. Sampling5.1 Select the sample to represent the cast stone under consideration. The sample may be randomly selected by the purchaseror his authorized representative from each 500 ft3 (14 m3) of cast stone. Select a sample of adequate size to permit the preparationo

9、f three absorption test specimens.6. Test Specimens6.1 For absorption tests take three specimens from the sample. Cut specimens from the finished surface of the sample to consistof one surface intended to be exposed to view and five saw-cut surfaces, except that for faced cast stone, cut the specime

10、ns throughthe faced surface to consist of approximately equal parts of the facing material and the backup material.6.2 Cut specimens from the sample with saws. The test specimens shall be 2-in. (50.8-mm) or 50-mm cubes. The allowable sizetolerance of the cubes shall be 618 in. (3.2 mm).1 This test m

11、ethod is under the jurisdiction ofASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.20 on Architecturaland Structural Products.Current edition approved May 1, 2011May 1, 2018. Published June 2011May 2018. Originally published in 1991. Last previous

12、edition approved in 20032011 asC1195 03.C1195 03(2011). DOI: 10.1520/C1195-03R11.10.1520/C1195-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Docum

13、ent 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 adequately depict all changes accurately, ASTM re

14、commends 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17. Conditio

15、ning7.1 For this test, oven Oven dry specimens at a temperature of 212 to 230F (100 to 110C) 230 6 9F (110 6 5C) until theloss in mass is not more than 0.1 % in 24 h of drying. Remove specimens from the oven and allow to cool in room temperatureto a final temperature of 68 to 77F (20 to 25C) before

16、testing for absorption.8. Procedure8.1 Weigh the specimens immediately after conditioning and determine the mass to the nearest 0.1 g.8.2 Method A, Cold Water TestImmerse the specimens completely in filtered or distilled water at 73.4 6 3F (236 1.7C) for48 h. At the end of this period, remove them f

17、rom the water bath one at a time, surface dry with a damp cloth, and determine themass to the nearest 0.1 g.8.3 Method B, Boiling Water TestImmerse the specimens completely in cold filtered or distilled water for 48 h and thenimmerse in boiling water at 2126212 6 9F (100 6 5C) for 5 h.Allow the spec

18、imens to cool to a final temperature of 68 to 77F(20 to 25C), surface dry, and weigh to the nearest 0.1 g.9. Calculations9.1 Calculate the absorption of each specimen as follows:absorption, mass %5B 2A!/A# 3100 (1)where:A = mass of the dried specimen, andB = mass of the specimen after immersion.9.2

19、The absorption is the average absorption of the three specimens.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 te

20、st begins.11. Precision and Bias11.1 PrecisionThe precision of this test is similar to Test Method C642 for which data are not yet available. The precisionof this test method will be stated when data become available.11.2 BiasSince there is no accepted reference material suitable for determining the

21、 bias of results of this test method, nostatement 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

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