1、Designation:C979/C979M16Standard Specification forPigments for Integrally Colored Concrete1This standard is issued under the fixed designation C979/C979M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the basic requirement forcolored and white pigments in powder form to be used asadmixtures in concrete for the purp
3、ose of producing integrallycolored concrete.Where the pigments are a constituent of amulticomponent admixture,this specification applies to thepigment constituent of the admixture.This specification is notintended to establish compatibility of pigments with any otherconcrete admixtures unless they a
4、re tested in combination inaccordance with 4.7.1.2 This specification does not include the determination ofpigment stability when elevated temperature using low-pressure(atmospheric)or high-pressure(autoclave)steam isused to accelerate the curing process.1.3 In addition to tests defining the pigment
5、s themselves,alimited number of tests on concrete are included to define theeffects on setting times,air content,and compressive strength.If more extensive information is required for a particular job,additional testing criteria and procedures should be agreedupon between the seller and user.1.4 The
6、 maximum prescribed dosage rate of a pigment,established in accordance with 4.7,shall be equal to or lessthan 10 mass%of cement.When a combination of pigments isused to produce the desired color and color intensity,the totaldosage rate of all pigments combined shall not exceed any ofthe individual m
7、aximum dosage rates of the component pig-ments.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two
8、 systems may result in non-conformancewith the standard.Some values have only SI units becauseinch-pound equivalents are not used in practice.2.Referenced Documents2.1 ASTM Standards:2C33/C33M Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete
9、 SpecimensC125 Terminology Relating to Concrete and Concrete Ag-gregatesC143/C143M Test Method for Slump of Hydraulic-CementConcreteC150/C150M Specification for Portland CementC173/C173M Test Method forAir Content of Freshly MixedConcrete by the Volumetric MethodC192/C192M Practice for Making and Cu
10、ring Concrete TestSpecimens in the LaboratoryC231/C231M Test Method forAir Content of Freshly MixedConcrete by the Pressure MethodC260/C260M Specification for Air-Entraining Admixturesfor ConcreteC403/C403M Test Method for Time of Setting of ConcreteMixtures by Penetration ResistanceD50 Test Methods
11、 for ChemicalAnalysis of Yellow,Orange,Red,and Brown Pigments Containing Iron and Manga-neseD1208 Test Methods for Common Properties of CertainPigmentsD1535 Practice for Specifying Color by the Munsell SystemG23 Practice for Operating Light-Exposure Apparatus(Carbon-Arc Type)With and Without Water f
12、or Exposureof Nonmetallic Materials(Withdrawn 2000)32.2 ACI Standards:4211.1-91(Reapproved 2009)Standard Practice for SelectingProportions for Normal,Heavyweight,and Mass Concrete3.Terminology3.1 Defintions:1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete A
13、ggregatesand is the direct responsibility of SubcommitteeC09.23 on Chemical Admixtures.Current edition approved Jan.1,2016.Published March 2016.Originallyapproved in 1982.Last previous edition approved in 2010 as C979/C979M 10.DOI:10.1520/C0979_C0979M16.2For referenced ASTM standards,visit the ASTM
14、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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American Con
15、crete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.concrete.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2 For definitions of terms used in this specification,referto Terminology C125.4.General Requirements
16、4.1 Water WettabilityThe pigment shall be water wettablewhen tested in accordance with 8.1.4.2 Alkali ResistanceThe pigment treated with sodiumhydroxide shall not show any significant(Note 1)change ofcolor when tested in accordance with 8.2.4.3 Total SulfatesCalculated as SO3,the sulfates shall notexceed 5.0 mass%of the original pigment sample when testedin accordance with 8.3.4.4 Water SolubilityThe total matter soluble in water shallnot exceed 2.0 mass%of the original pigment sample whentested