1、Designation:C94/C94M17aStandard Specification forReady-Mixed Concrete1This standard is issued under the fixed designation C94/C94M;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indi
2、cates 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 U.S.Department of Defense.1.Scope*1.1 This specification covers ready-mixed concrete as de-fined in 3.2.2(Note 1).Req
3、uirements for quality of ready-mixed concrete shall be either as stated in this specification orasorderedbythepurchaser.Whenthepurchasersrequirements,as stated in the order,differ from those in thisspecification,the purchasers requirements shall govern.Thisspecification does not cover the placement,
4、consolidation,curing,or protection of the concrete after delivery to thepurchaser.NOTE1Concrete produced by volumetric batching and continuousmixing is covered in Specification C685.Fiber-reinforced concrete iscovered in Specification C1116.1.2 The values stated in either SI units,shown in brackets,
5、or inch-pound units are to be regarded separately as standard.The values stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.3 As used throughout this
6、 specification the manufacturerproduces ready-mixed concrete.The purchaser buys ready-mixed concrete.1.4 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements o
7、f the standard.1.5 This standard does not purport to address all the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.(WarningFr
8、esh hydraulic cementi-tious mixtures are caustic and may cause chemical burns toskin and tissue upon prolonged use.2)1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopmen
9、t of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3C31/C31M Practice for Making and Curing Concrete TestSpecimens in the FieldC33/C33M Specification for Concrete Aggregates
10、C39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC125 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/
11、C150M Specification for Portland CementC172/C172M Practice for Sampling Freshly Mixed Con-creteC173/C173M Test Method forAir Content of Freshly MixedConcrete by the Volumetric MethodC231/C231M Test Method forAir Content of Freshly MixedConcrete by the Pressure MethodC260/C260M Specification for Air-
12、Entraining Admixturesfor ConcreteC330/C330M Specification for Lightweight Aggregates forStructural ConcreteC494/C494M Specification for Chemical Admixtures forConcreteC567/C567M Test Method for Determining Density ofStructural Lightweight ConcreteC595/C595M Specification for Blended Hydraulic Cement
13、sC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in Concrete1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.40 on Ready-Mixed Concrete.Current edition approved A
14、ug.1,2017.Published August 2017.Originallyapproved in 1933.Last previous edition approved in 2017 as C94/C94M 17.DOI:10.1520/C0094_C0094M-17A.2See Section on Safety Precautions,Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards,Vol 04.02.3For referenced ASTM standards,visit the A
15、STM 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbo
16、r Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established 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 C637 Specification for Aggregates for Radiation-ShieldingConcreteC685 Specification for Concrete Made by Volumetric Bat
