1、ACI 311.6-09Specification for Ready Mixed ConcreteTesting ServicesAn ACI StandardReported by ACI Committee 311American Concrete InstituteAdvancing concrete knowledgeSpecification for Ready Mixed Concrete Testing ServicesFirst printingNovember 2009ISBN 978-0-87031-351-6Copyright by the American Concr
2、ete Institute, Farmington Hills, MI. All rights reserved. This materialmay not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or otherdistribution and storage media, without the written consent of ACI.The technical committees responsible for ACI committee re
3、ports and standards strive to avoid ambiguities,omissions, and errors in these documents. In spite of these efforts, the users of ACI documents occasionallyfind information or requirements that may be subject to more than one interpretation or may beincomplete or incorrect. Users who have suggestion
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5、aluate thesignificance and limitations of its content and recommendations and who will accept responsibility for theapplication of the material it contains. Individuals who use this publication in any way assume all risk andaccept total responsibility for the application and use of this information.
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8、ic circumstances involved with its use. ACI does not make any representations with regard tohealth and safety issues and the use of this document. The user must determine the applicability of allregulatory limitations before applying the document and must comply with all applicable laws and regulati
9、ons,including but not limited to, United States Occupational Safety and Health Administration (OSHA) healthand safety standards.Order information: ACI documents are available in print, by download, on CD-ROM, through electronicsubscription, or reprint and may be obtained by contacting ACI.Most ACI s
10、tandards and committee reports are gathered together in the annually revised ACI Manual ofConcrete Practice (MCP).American Concrete Institute38800 Country Club DriveFarmington Hills, MI 48331U.S.A.Phone: 248-848-3700Fax: 248-848-3701www.concrete.orgACI 311.6-09 was adopted October 6, 2009 and publis
11、hed November 2009.Copyright 2009, American Concrete Institute.All rights reserved including rights of reproduction and use in any form or by anymeans, including the making of copies by any photo process, or by electronic ormechanical device, printed, written, or oral, or recording for sound or visua
12、l reproduc-tion or for use in any knowledge or retrieval system or device, unless permission inwriting is obtained from the copyright proprietors.311.6-1ACI 311.6-09This Reference Specification covers Testing Agency requirements for fieldand laboratory testing of ready mixed concrete delivered to th
13、e project. Itis intended for use by specifiers, architects, engineers, owners, contractors,and other groups interested in monitoring the quality of concrete used inproject construction. This Reference Specification can be made applicableto any construction project by citing it in a Contract. The Spe
14、cifier supple-ments the provisions of this Reference Specification as needed by speci-fying individual project requirements in the Contract.Keywords: air content; laboratory; ready mixed concrete; sampling;slump; specification; technician; temperature; testing; unit weight.CONTENTS(mandatory portion
15、 follows)Section 1General requirements, p. 311.6-21.1Scope1.2Qualifications1.3Definitions1.4Referenced standards1.5Certification and accreditation organizations1.6Units of measurementSection 2Testing of ready mixed concrete,p. 311.6-32.1Sampling2.2Frequency of sampling and testing2.3Tests2.4Number o
16、f strength test specimens2.5Curing of strength test specimens2.6Testing for strengthSection 3Submittals, p. 311.6-33.1Scope3.2Reports3.3Report information(mandatory portion follows)Notes to Specifier, p. 311.6-4General notesForeword to checklists, p. 311.6-4Mandatory Requirements Checklist, p. 311.6
17、-5Optional Requirements Checklist, p. 311.6-5Submittals Checklist, p. 311.6-5William T. Atkin Jimmie D. Hannaman, Jr. Michael C. Jaycox*Woodward L. VogtJoseph W. Clendenen Robert L. Henry Robert S. Jenkins George R. WargoMario R. Diaz Charles J. Hookham Jose Damazo Juarez Bertold E. WeinbergDonald E
18、. Dixon Venkatesh S. Iyer Eric D. King Michelle L. WilsonJohn V. Gruber Claude E. Jaycox*Roger D. Tate*Members who wrote this specification.Michael T. Russell*ChairSpecification for Ready Mixed ConcreteTesting ServicesAn ACI StandardReported by ACI Committee 311311.6-2 ACI STANDARD(mandatory portion
19、 follows)SECTION 1GENERAL REQUIREMENTS1.1Scope1.1.1 Work specifiedThis specification sets theminimum requirements for testing of ready mixed concreteat the project site when specific field-measured propertiesand laboratory-measured compressive strength are used as abasis for acceptance of concrete a
20、s delivered to the site. Itincludes requirements for making and curing test specimens,performing field and laboratory tests, and qualifyingpersonnel and laboratories performing these tests. Testingservices required in this specification shall be completed bya Testing Agency engaged by the Owner. The
21、 TestingAgency must be independent from conflicts of interest thatmay affect objective reporting of the testing services.1.1.2 Work not specifiedThis specification does notapply to testing requirements and responsibilities required ofthe construction Contractor.1.1.3 Project DocumentsThe Testing Age
22、ncy shallprovide the tests and reports defined by the Project Specifi-cations supplied by the Owner or Owners representative.1.2Qualifications1.2.1 The Testing Agency shall submit qualifications of fieldtechnicians and laboratory testing technicians, as defined inSections 1.2.1.1 to 1.2.1.2, to Owne
23、r or Owners representative.1.2.1.1 Field technicianTechnicians conducting fieldtests of concrete shall be certified as ACI Concrete Field TestingTechnician Grade I, unless otherwise specified.1.2.1.2 Laboratory technicianTechnicians conductinglaboratory testing shall be certified as ACI Concrete Lab
24、oratoryTesting Technician Level 1 or ACI Concrete StrengthTesting Technician, unless otherwise specified.1.2.2 Testing AgencyThe Owner or the Owners repre-sentative shall not delegate these services to the ConstructionContractor. The Testing Agency shall meet the requirementsof ASTM E329 and be accr
25、edited in accordance with therequirements of ASTM C1077. Unless otherwise specified,the Testing Agency shall be accredited by one or more of thefollowing: the AASHTO Accreditation Program (AAP), theNational Voluntary Laboratory Accreditation Program(NVLAP), the American Association for LaboratoryAcc
26、reditation (A2LA), the International AccreditationService (IAS), the Construction Materials EngineeringCouncil (CMEC), or the Washington Area Council of Engi-neering Laboratories (WACEL).1.3Definitionsaccreditationthe act or result of having a Testing Agencysquality procedures, equipment calibration
27、, and personnelreviewed and approved by an independent third-party agency.certificationthe act of having an individuals skills andknowledge of a certain subject tested and verified by anindependent third-party agency.Contractthe professional agreement between the Ownerand Testing Agency for provisio
28、ns of testing services.Contract Documentsa set of documents supplied byOwner to Contractor as the basis for testing; these documentscontain contract forms, contract conditions, specifications,drawings, addenda, and contract changes.Contractoras used in this document, the person, firm,or entity under
29、 contract for testing services.Ownerthe corporation, association, partnership,individual, public body, or authority for whom the testingservices are performed.Project Specificationthe written document that detailsrequirements for the Work in accordance with serviceparameters and other prescriptive o
30、r performance criteria.Testing Agencythe firm or entity under contract forproviding testing services.Workthe entire construction or separately identifiableparts thereof required to be furnished as described in theContract Documents.1.4Referenced standardsStandards of ASTM referred to in this specifi
31、cation arelisted with serial designation and are part of this specifica-tion. The latest edition of the ASTM standard shall be usedunless otherwise specified in Contract Documents.C31 Standard Practice for Making and CuringConcrete Test Specimens in the FieldC39 Standard Test Method for Compressive
32、Strengthof Cylindrical Concrete SpecimensC138 Standard Test Method for Density (Unit Weight),Yield, and Air Content (Gravimetric) of ConcreteC143 Standard Test Method for Slump of Hydraulic-Cement ConcreteC172 Standard Practice for Sampling Freshly MixedConcreteC173 Standard Test Method for Air Cont
33、ent of FreshlyMixed Concrete by the Volumetric MethodC231 Standard Test Method for Air Content of FreshlyMixed Concrete by the Pressure MethodC511 Standard Specification for Mixing Rooms, MoistCabinets, Moist Rooms, and Water Storage TanksUsed in the Testing of Hydraulic Cements andConcretesC1064 St
34、andard Test Method for Temperature of FreshlyMixed Hydraulic-Cement ConcreteC1077 Standard Practice for Laboratories Testing Concreteand Concrete Aggregates for Use in Constructionand Criteria for Laboratory EvaluationE329 Standard Specification for Agencies Engaged inConstruction Inspection and/or
35、TestingThese publications may be obtained from:ASTM International100 Barr Harbor DriveWest Conshohocken, PA 19428www.astm.org1.5Certification and accreditation organizations1.5.1 Certification organizationThe following certificationorganization referred to in this specification is listed withcontact
36、 information.SPECIFICATION FOR READY MIXED CONCRETE TESTING SERVICES 311.6-3American Concrete InstitutePO Box 9094Farmington Hills, MI 48843-9094www.concrete.org1.5.2 Accreditation organizationsThe following accred-itation organizations referred to in this specification arelisted with contact inform
37、ation.AASHTO Accreditation Program (AAP)AASHTO Materials Reference Laboratory (AMRL)National Institute of Standards and Technology100 Bureau Drive, Stop 8619Gaithersburg, MD 20899-8619http:/The American Association for Laboratory Accreditation (A2LA)5301 Buckeystown Pike, Suite 350Frederick, MD 2170
38、4www.a2la.orgConstruction Materials Engineering Council (CMEC)850 Courtland St, Suite BOrlando, FL 32804www.cmec.orgInternational Accreditation Service (IAS)5360 Workman Mill RoadWhittier, CA 90601www.iasonline.orgNational Voluntary Laboratory Accreditation Program(NVLAP)Standards Services DivisionN
39、ational Institute of Standards and Technology100 Bureau Drive, Stop 2140Gaithersburg, MD 20899-2140http:/ts.nist.gov/Standards/accreditation/index.cfmWashington Area Council of Engineering Laboratories, Inc.7508 Wisconsin Avenue, 4th FloorBethesda, MD 20814www.wacel.org1.6Units of measurementValues
40、in this specification are stated in inch-pound units.A companion specification in SI units is also available.SECTION 2TESTING OF READY MIXED CONCRETE2.1SamplingSample the ready mixed concrete for testing required inthis specification in accordance with ASTM C172 unlessotherwise specified.2.2Frequenc
41、y of sampling and testing2.2.1 Tests found in 2.3.1 through 2.3.4 shall be performedand strength test specimens shall be obtained per require-ments of 2.3.6 and tested according to requirements of to2.3.5, at least once for each 100 yd3, or fraction thereof, foreach class of concrete placed in any o
42、ne day.2.2.2 Tests 2.3.1 through 2.3.4 shall be performed on theinitial delivery of each class of concrete delivered to theproject each day, and if a concrete mixture is adjusted, on thefirst adjusted delivery, unless otherwise specified.2.3Tests2.3.1 Slump testASTM C1432.3.2 Temperature testASTM C1
43、0642.3.3 Air content testASTM C173 or C2312.3.4 Density (unit weight) testASTM C1382.3.5 Compressive strength testASTM C392.3.6 Making compressive strength specimensASTM C312.4Number of strength test specimensAn acceptance strength test set consists of a minimum oftwo 6 x 12 in. specimens or three 4
44、 x 8 in. specimens to betested at the age of 28 days, unless otherwise specified.2.5Curing of strength test specimens2.5.1 Initial curingOwner or Owners representativewill provide and maintain adequate facilities on the projectsite for initial storage and curing of the concrete specimens,unless othe
45、rwise specified. Specimens shall be stored underconditions that meet the requirements of ASTM C31 andshall be verified by Testing Agency. Such storage shall havetemperature controls to maintain ASTM C31 temperaturerequirements. Calibrated temperature recording devicesshall be used to record daily ma
46、ximum and minimumtemperatures of the initial curing environment.2.5.2 TransportationTesting Agency will recover andtransport concrete specimens in accordance with ASTM C31.2.5.3 Final curingFinal curing of strength test speci-mens shall be done in accordance with ASTM C31 and C511until time of test.
47、2.6Testing for strengthDetermine compressive strengths of cylinders in accor-dance with 2.3.5.SECTION 3SUBMITTALS3.1ScopeThe Testing Agencys scope of authority, the requirementsfor submittal of reports (timelines, methods of delivery anddistribution list), and the procedure for notification ofdefici
48、encies (methods of delivery, timelines and distributionlist), and required observations shall be defined in theContract with the Owner before the start of the project.3.2Reports3.2.1 Daily reportThe Testing Agency shall submitdaily reports that document the results of field concrete testsperformed i
49、n accordance with Section 2.2 and distributed inaccordance with Section 3.1, unless otherwise specified.3.2.2 Nonconformance reportDeficient items shall becommunicated in a nonconformance report to the distributionlist established in accordance with Section 3.1. Unless otherwise311.6-4 ACI STANDARDstated in the Contract Documents, a nonconformance reportshall be issued within 24 hours for any concrete found deficient.3.2.3 Final reportA final field report and a laboratoryreport per ASTM test standards s
