1、Designation:C22612Standard Specification forAir-Entraining Additions for Use in the Manufacture of Air-Entraining Hydraulic Cement1This standard is issued under the fixed designation C226;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisi
2、on,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.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification covers
3、the requirements and methodsfor establishing the suitability of a material for use as anair-entraining addition to be interground with the clinker in themanufacture of air-entraining hydraulic cement conforming toSpecifications C150,C595,and C1157.1.2 The values stated in SI units are to be regarded
4、 as thestandard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.(W
5、arningFreshhydraulic cementitious mixtures are caustic and may causechemical burns to skin and tissue upon prolonged exposure.2)2.Referenced Documents2.1 ASTM Standards:3C33 Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC109/C109
6、M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in.or 50-mm CubeSpecimens)C114 Test Methods for Chemical Analysis of HydraulicCementC115 Test Method for Fineness of Portland Cement by theTurbidimeterC138/C138M Test Method for Density(Unit Weight),Yield,and Air Content(Gravi
7、metric)of ConcreteC143/C143M Test Method for Slump of Hydraulic-CementConcreteC150 Specification for Portland CementC151 Test Method for Autoclave Expansion of HydraulicCementC175 Specification for Air-Entraining Portlant Cement;Re-placed by C 150(Withdrawn 1970)4C185 Test Method for Air Content of
8、Hydraulic CementMortarC187 Test Method for Amount of Water Required for Nor-mal Consistency of Hydraulic Cement PasteC191 Test Methods for Time of Setting of Hydraulic Cementby Vicat NeedleC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC204 Test Methods for Finenes
9、s of Hydraulic Cement byAir-Permeability ApparatusC231 Test Method for Air Content of Freshly Mixed Con-crete by the Pressure MethodC293 Test Method for Flexural Strength of Concrete(UsingSimple Beam With Center-Point Loading)C595 Specification for Blended Hydraulic CementsC596 Test Method for Dryin
10、g Shrinkage of Mortar Contain-ing Hydraulic CementC666/C666M Test Method for Resistance of Concrete toRapid Freezing and ThawingC1157 Performance Specification for Hydraulic Cement2.2 ACI Standards:5ACI 211.1-77 Recommended Practice for Selecting Propor-tions for Normal and Heavyweight Concrete3.Mat
11、erials3.1 Cements:3.1.1 In cases where it is desired that the proposed air-entraining addition be accepted for general use in portlandcement,tests shall be made on six lots of cement ground at1This specification is under the jurisdiction ofASTM Commitee C01 on Cementand is the direct responsibility
12、of Subcommittee C01.20 on Additions.Current edition approved July 15,2012.Published August 2012.Originallyapproved in 1950.Last previous edition approved in 2007 as C226 07.DOI:10.1520/C0226-12.2See the section on Safety,Manual of Cement Testing,Annual Book of ASTMStandards,Vol 04.01.3For referenced
13、 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 website.4The last approved version of this historical standard is referenced onwww.astm.o
14、rg.5Available from the American Concrete Institute,P.O.Box 19150,Detroit,MI48219.*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 States1 cement plants,using commercial grinding equi
15、pment.Fromeach of three different samples of clinkers,two lots of cementshall be ground,representing respectively:a Type I portlandcement containing not less than 9%tricalcium aluminate(C3A),calculated as specified in Table 1 of Specification C150and a Type II and a Type III portland cement all conf
16、orming toSpecification C150.One lot,the“control”shall be groundwithout the proposed air-entraining addition;the proposedaddition shall be interground with the other lot,using theaddition in such amounts as to produce the air/entrainmentrequired in Specification C150.Not more than two of the threeclinkers shall be produced by or ground at the same mill.3.1.2 In cases where it is desired that the proposed air-entraining addition be limited in use to specific types of cementin specific cement manuf
