1、Designation:C129308b(Reapproved 2015)Standard Test Method forDetermination of Length Change of Concrete Due to Alkali-Silica Reaction1This standard is issued under the fixed designation C1293;the number immediately following the designation indicates the year oforiginal adoption or,in the case of re
2、vision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers the determination of the sus-ceptibility of an aggregate or combination of an a
3、ggregate withpozzolan or slag for participation in expansive alkali-silicareaction by measurement of length change of concrete prisms.1.2 The values stated in SI units are to be regarded as thestandard.No other units of measurement are included in thisstandard.When combined standards are cited,the s
4、election ofmeasurement system is at the users discretion subject to therequirements of the referenced standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety
5、and health practices and determine the applica-bility of regulatory limitations prior to use.(WarningFreshhydraulic cementitious mixtures are caustic and may causechemical burns to skin and tissue upon prolonged exposure.2)2.Referenced Documents2.1 ASTM Standards:3C29/C29M Test Method for Bulk Densi
6、ty(“Unit Weight”)and Voids in AggregateC33 Specification for Concrete AggregatesC125 Terminology Relating to Concrete and Concrete Ag-gregatesC138/C138M Test Method for Density(Unit Weight),Yield,and Air Content(Gravimetric)of ConcreteC143/C143M Test Method for Slump of Hydraulic-CementConcreteC150
7、Specification for Portland CementC157/C157M Test Method for Length Change of HardenedHydraulic-Cement Mortar and ConcreteC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC227 Test Method for Potential Alkali Reactivity ofCement-Aggregate Combinations(Mortar-Bar Metho
8、d)C289 Test Method for Potential Alkali-Silica Reactivity ofAggregates(Chemical Method)C294 Descriptive Nomenclature for Constituents of Con-crete AggregatesC295 Guide for Petrographic Examination ofAggregates forConcreteC490 Practice for Use ofApparatus for the Determination ofLength Change of Hard
9、ened Cement Paste,Mortar,andConcreteC494/C494M Specification for Chemical Admixtures forConcreteC511 Specification for Mixing Rooms,Moist Cabinets,Moist Rooms,and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC618 Specification for Coal Fly Ash and Raw or CalcinedNatural P
10、ozzolan for Use in ConcreteC702 Practice for Reducing Samples ofAggregate to TestingSizeC856 Practice for Petrographic Examination of HardenedConcreteC989 Specification for Slag Cement for Use in Concrete andMortarsC1240 Specification for Silica Fume Used in CementitiousMixturesC1260 Test Method for
11、 Potential Alkali Reactivity of Ag-gregates(Mortar-Bar Method)D75 Practice for Sampling Aggregates2.2 CSA Standards:4CSA A23.2-14A Potential Expansivity of Aggregates(Pro-cedure for Length Change due to Alkali-Aggregate Reac-tion in Concrete Prisms at 38 C)CSA A23.2-27A Standard Practice to Identify
12、 Degree ofAlkali-Reactivity of Aggregates and to Identify Measures1This test method is under the jurisdiction of Committee C09 on Concrete andConcrete Aggregatesand is the direct responsibility of Subcommittee C09.26 onChemical Reactions.Current edition approved Aug.1,2015.Published October 2015.Ori
13、ginallyapproved in 1995.Last previous edition approved in 2008 as C1293 08b.DOI:10.1520/C1293-08BR15.2Section on Safety Precautions,Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards,Vol.04.02.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Custo
14、mer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from Canadian Standards Association(CSA),5060 Spectrum Way,Mississauga,ON L4W 5N6,Canada,http:/www.csa.ca.*A Summary of Changes section appear
15、s at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 to Avoid Deleterious Expansion in ConcreteCSAA23.2-28A Standard Practice for Laboratory Testing toDemonstrate the Effectiveness of Supplementary Cement-ing Mater
16、ials and Lithium-Based Admixtures to PreventAlkali-Silica Reaction in Concrete3.Terminology3.1 Terminology used in this standard is as given in Termi-nology C125 or Descriptive Nomenclature C294.4.Significance and Use4.1 Alkali-silica reaction is a chemical interaction betweensome siliceous constituents of concrete aggregates and hy-droxyl ions(1).5The concentration of hydroxyl ion within theconcrete is predominantly controlled by the concentration ofsodium and potassium(2).4.2 This test method
