1、Designation:C6717American Association State Highway and TransportationOfficials StandardAASHTO No.:T 32-70Standard Test Methods forSampling and Testing Brick and Structural Clay Tile1This standard is issued under the fixed designation C67;the number immediately following the designation indicates th
2、e year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Departm
3、ent of Defense.1.Scope*1.1 These test methods cover procedures for the samplingand testing of brick and structural clay tile.Although notnecessarily applicable to all types of units,tests includemodulus of rupture,compressive strength,absorption,satura-tion coefficient,effect of freezing and thawing
4、,efflorescence,initial rate of absorption and determination of weight,size,warpage,length change,and void area.(Additional methods oftest pertinent to ceramic glazes include imperviousness,chemi-cal resistance,opacity,and resistance to crazing.1.2 The text of this standard references notes and footn
5、oteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.NOTE1The testing laboratory performing this test method should beevaluated in accordance with Practice C1093.1.3 The values stated in inch-pou
6、nd units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 These test methods include the following sections:Section HeadingSectionScope1Referenced Documents2Terminology3Samp
7、ling4Specimen Preparation5Modulus of Rupture(Flexure Test)6Compressive Strength7Absorption8Freezing and Thawing9Initial Rate of Absorption(Suction)(LaboratoryTest)10Efflorescence11Weight Per Unit Area12Measurement of Size13Measurement of Warpage14Section HeadingSectionMeasurement of Length Change15I
8、nitial Rate of Absorption(Suction)(Field Test)16Measurement of Void Area in Cored Units17Measurement of Void Area in Deep Frogged Units18Measurement of Out of Square19Measurement of Shell and Web Thickness20Breaking Load21Imperviousness Test(of Ceramin Glazes)22Chemical Resistance Test(of Ceramic Gl
9、azes)23Autoclaved Crazing Test(of Ceramic Glazes)24Opacity Test(of Ceramic Glazes)25Precision and Bias26Keywords27Safety Precautions for Autoclave Equipment andOperationAppendix X11.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsi
10、bility 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.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in
11、 the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C150 Specification for Portland CementC1093 Practice for Accreditation of Te
12、sting Agencies forMasonryC1232 Terminology of MasonryE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechanical TestingE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermi
13、ne the Precision of a Test Method1These test methods are under the jurisdiction of Committee C15 on Manufac-tured Masonry Units and is the direct responsibility of Subcommittee C15.02 onBrick and Structural Clay Tile.Current edition approved June 1,2017.Published July 2017.Originally approvedin 1937
14、.Last previous edition approved in 2016 as C67 16.DOI:10.1520/C0067-17.2For 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 Summary page onthe ASTM web
15、site.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization esta
16、blished in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.Terminology3.1 DefinitionsFor definitions relating to sampling andtesting brick,refer to Terminology E6 and Terminology C1232.4.Sampling4.1 Selection and Preparation of Test SpecimensFor thepurpose of these tests,full-size brick,tile,or solid masonryunits shall be selected by the purchaser or by the pur
