ASTM C94 C94M-2007 Standard Specification for Ready-Mixed Concrete.pdf
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1、Designation: C 94/C 94M 07Standard Specification forReady-Mixed Concrete1This standard is issued under the fixed designation C 94/C 94M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parenth
2、eses indicates the year of last reapproval.A superscript epsilon (e) 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 ready-mixed concrete manu-factured and deli
3、vered to a purchaser in a freshly mixed andunhardened state as hereinafter specified. Requirements forquality of concrete shall be either as hereinafter specified or asspecified by the purchaser. In any case where the requirementsof the purchaser differ from these in this specification, thepurchaser
4、s specification shall govern. This specification doesnot cover the placement, consolidation, curing, or protection ofthe concrete after delivery to the purchaser.1.2 The values stated in either SI units, shown in brackets,or inch-pound units are to be regarded separately as standard.The values state
5、d 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 specification the manufacturerproduces ready-mixed concrete. The purchaser b
6、uys 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 of the standard.1.5 This standard does not purport to address all the safet
7、yconcerns, 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. (WarningFresh hydraulic cementi-tious mixtures are caustic and may cause chemica
8、l burns toskin and tissue upon prolonged use.2)2. Referenced Documents2.1 ASTM Standards:3C 31/C 31M Practice for Making and Curing Concrete TestSpecimens in the FieldC33 Specification for Concrete AggregatesC 39/C 39M Test Method for Compressive Strength of Cy-lindrical Concrete SpecimensC 125 Term
9、inology Relating to Concrete and ConcreteAggregatesC 138/C 138M Test Method for Density (Unit Weight),Yield, and Air Content (Gravimetric) of ConcreteC 143/C 143M Test Method for Slump of Hydraulic-Cement ConcreteC 150 Specification for Portland CementC 172 Practice for Sampling Freshly Mixed Concre
10、teC 173/C 173M Test Method for Air Content of FreshlyMixed Concrete by the Volumetric MethodC 231 Test Method for Air Content of Freshly MixedConcrete by the Pressure MethodC 260 Specification for Air-Entraining Admixtures for Con-creteC 330 Specification for Lightweight Aggregates for Struc-tural C
11、oncreteC 494/C 494M Specification for Chemical Admixtures forConcreteC 567 Test Method for Determining Density of StructuralLightweight ConcreteC 595 Specification for Blended Hydraulic CementsC 618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC 637 Specifica
12、tion for Aggregates for Radiation-ShieldingConcreteC 989 Specification for Ground Granulated Blast-FurnaceSlag for Use in Concrete and MortarsC 1017/C 1017M Specification for Chemical Admixturesfor Use in Producing Flowing Concrete1This specification is under the jurisdiction of ASTM Committee C09 o
13、nConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.40 on Ready-Mixed Concrete.Current edition approved Jan. 1, 2007. Published February 2007. Originallyapproved in 1933. Last previous edition approved in 2005 as C 94/C 94M05.2See Section on Safety Precautions, Manu
14、al 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 Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page o
15、nthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.C 1064/C 1064M Test Method for Temperature of FreshlyMixed Hydraulic-Cement ConcreteC 1077 Practice f
16、or Laboratories Testing Concrete and Con-crete Aggregates for Use in Construction and Criteria forLaboratory EvaluationC 1157 Performance Specification for Hydraulic CementC 1240 Specification for Silica Fume Used in CementitiousMixturesC 1602/C 1602M Specification for Mixing Water Used inthe Produc
17、tion of Hydraulic Cement Concrete2.2 ACI Documents:4CP-1 Technician Workbook for ACI Certification of Con-crete Field Testing TechnicianGrade I211.1 Standard Practice for Selecting Proportions for Nor-mal, Heavyweight, and Mass Concrete211.2 Standard Practice for Selecting Proportions for Struc-tura
18、l Lightweight Concrete301 Standard Specifications for Structural Concrete305R Hot Weather Concreting306R Cold Weather Concreting318 Building Code Requirements for Structural Concreteand Commentary2.3 Other Documents:Bureau of Reclamation Concrete Manual53. Terminology3.1 Definitions:The terms used i
19、n this specification are defined in Terminol-ogy C 125.4. Basis of Purchase4.1 The basis of purchase shall be the cubic yard or cubicmetre of freshly mixed and unhardened concrete as dischargedfrom the transportation unit.4.2 The volume of freshly mixed and unhardened concretein a given batch shall
20、be determined from the total mass of thebatch divided by the density of the concrete. The total mass ofthe batch shall be determined as the net mass of the concrete inthe batch as delivered, including the total mixing water asdefined in 9.3. The density shall be determined in accordancewith Test Met
21、hod C 138/C 138M. The yield shall be deter-mined as the average of at least three measurements, one fromeach of three different transportation units sampled in accor-dance with Practice C 172.NOTE 1It should be understood that the volume of hardened concretemay be, or appear to be, less than expecte
22、d due to waste and spillage,over-excavation, spreading forms, some loss of entrained air, or settlementof wet mixtures, none of which are the responsibility of the producer.5. Materials5.1 In the absence of designated applicable materials speci-fications, the following materials specifications shall
23、 be used:5.2 Cementitious Materials5.2.1 Hydraulic CementHydraulic cement shall conformto Specification C 150, Specification C 595, or SpecificationC 1157.5.2.2 Supplementary Cementitious MaterialsCoal fly ashor natural pozzolans shall conform to Specification C 618.Ground granulated blast furnace s
24、lag shall conform to Speci-fication C 989. Silica fume shall conform to SpecificationC 1240.5.2.3 Cementitious concrete mixturesCementitious con-crete mixtures shall contain the kind(s) and class(es) ofhydraulic cement(s) and the kind(s) and class(es) of supple-mentary cementitious material(s) as sp
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