ACI 308 1-2011 Specification for Curing Concrete.pdf

1、ACI 308.1-11Reported by ACI Committee 308Specification for Curing ConcreteAn ACI StandardSpecification for Curing ConcreteFirst PrintingJuly 2011ISBN 978-0-87031-439-1American Concrete InstituteAdvancing concrete knowledgeCopyright by the American Concrete Institute, Farmington Hills, MI. All rights

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10、ether 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 308.1-11supersedes 308.1-98, was adopted April 29, 2011, and was publishedJune 2011.Copyright

11、2011, American Concrete Institute.All rights reserved including rights of reproduction and use in any form or by any means,including the making of copies by any photo process, or by electronic or mechanical device,printed, written, or oral, or recording for sound or visual reproduction or for use in

12、 anyknowledge or retrieval system or device, unless permission in writing is obtained from thecopyright proprietors.1Specification for Curing ConcreteAn ACI StandardReported by ACI Committee 308ACI 308.1-11This specification is a reference specification that the Architect/Engineercan make applicable

13、 to any construction project by citing it in the ProjectSpecification. The Architect/Engineer uses and supplements the provisions ofthis reference specification as needed by designating or specifying individualproject requirements to which provisions of this specification apply.This document provide

14、s requirements for alternative methods for curingconcrete. These alternative methods are not necessarily equal ineffectiveness, cost, effect on project schedule, or impact on other aspectsof the project. To use this specification, the Architect/Engineer must notonly include this document by referenc

15、e in the Project Specification, butmust also identify the concrete elements that are to be cured, and mustchoose the method to cure those elements. This specification has defaultsettings that may or may not be applicable to a specific project. TheArchitect/Engineer is to use the Checklists included

16、in this specification tocustomize the specification to a specific project. Checklists are provided inthis document to guide the Architect/Engineer through these selectionprocesses, and the selections must be included in the Project Specification.Alternatively, the Architect/Engineer may allow the Co

17、ntractor the optionof using one or more of a number of permissible curing methods, subject toreview and approval. Further, the Architect/Engineer must determinewhether deliberate curing efforts are to be terminated after a predeterminedtime has elapsed, or only after specified concrete properties ha

18、ve developed.When deliberate efforts to cure the concrete are to be terminated only whenspecified concrete properties have developed, the Architect/Engineer mustalso select the test method used to measure those properties.This specification addresses curing methods applied after placement ofconcrete

19、 and does not apply to internal curing (use of saturated light-weight aggregate or other materials to provide supplemental water) or toaccelerated curing (heat curing).The materials, processes, quality control measures, and inspectionsdescribed in this document should be tested, monitored, or perfor

20、med asapplicable only by individuals holding the appropriate ACI certificationsor equivalent.Keywords: cold-weather concreting; concrete construction; curing; curingfilms and sheets; hot-weather concreting; insulating concrete; insulation;membrane curing compounds; moist curing; moisture retention;

21、sealers;water curing; water retention.FOREWORD TO CHECKLISTSF1. This foreword is included for explanatory purposesonly; it does not form a part of ACI Specification 308.1.F2. ACI Specification 308.1 may be referenced by theSpecifier in the Project Specification for any buildingproject, together with

22、 supplementary requirements for thespecific project. Responsibilities for project participants mustbe defined in the Project Specification. ACI Specification 308.1cannot and does not address responsibilities for anyproject participant other than the Contractor.F3. Checklists do not form a part of AC

23、I Specification 308.1.Checklists assist the Specifier in selecting and specifyingproject requirements in the Project Specification.F4. The Mandatory Requirements Checklist indicateswork requirements regarding specific qualities, procedures,materials, and performance criteria that are not defined inA

24、CI Specification 308.1. The Specifier must include theserequirements in the Project Specification.F5. The Optional Requirements Checklist identifiesSpecifier choices and alternatives. The Checklist identifies theSections, Parts, and Articles of the ACI Reference Specification308.1 and the action req

25、uired or available to the Specifier. TheSpecifier should review each of the items in the Checklist andmake adjustments to the needs of a particular project by includingthose selected alternatives as mandatory requirements in theProject Specification.Donald L. Brogna Gilbert J. Haddad W. Calvin McCal

26、l Donald P. TragianeseDianne Carey Eugene D. Hill Jr. William S. Phelan Richard E. Van HornJames N. Cornell II R. Doug Hooton John W. Roberts Jody R. WallJonathan E. Dongell Kenneth C. Hover Lawrence R. Roberts Patrick M. WatsonBen E. Edwards Frank A. Kozeliski Philip A. Smith Daniel WebberJerome H.

27、 Ford James A. Lee David M. Suchorski John B. WojakowskiSidney Freedman Darryl Manuel Michael D. A. ThomasDavid E. Hoyt, Consulting MemberNote: ACI Committee 308 recognizes former committee Chair Steven H. Gebler for his significant contribution to this document prior to his passing in June 2006.Cec

28、il L. JonesChairJohn C. HukeySecretaryA metric version of this document (ACI308.1M-11) is available at www.concrete.org2 SPECIFICATION FOR CURNG CONCRETE (ACI 308.1-11)American Concrete Institute Copyrighted Materialwww.concrete.orgF6. The Submittals Checklist identifies information ordata to be pro

29、vided by the Contractor before, during, orafter construction.F7. Recommended referencesDocuments and publicationsthat are referenced in the Checklists of ACI Specification 308.1are listed. These references provide guidance to the Specifier andare not considered to be part of ACI Specification 308.1.

30、AASHTO M 148-05, 2005, “Standard Specification forLiquid Membrane-Forming Compounds for Curing Concrete,”AASHTO, Washington, DC.AASHTO M 171-05, 2005, “Standard Specification for SheetMaterials for Curing Concrete,” AASHTO, Washington, DC. AASHTO T 155-08, 2008, “Standard Method of Test forWater Ret

31、ention by Liquid Membrane-Forming CuringCompounds for Concrete,” Washington, DC, 9 pp.ACI Committee 305, 2010, “Guide to Hot WeatherConcreting (305R-10),” American Concrete Institute,Farmington Hills, MI, 23 pp. ACI Committee 306, 2010, “Guide to Cold WeatherConcreting (306R-10),” American Concrete

32、Institute,Farmington Hills, MI, 26 pp. ACI Committee 308, 2001, “Guide to Curing (308R-01)(Reapproved 2008),” American Concrete Institute, FarmingtonHills, MI, 31 pp.ACI Committee 309, 2005, “Guide for Consolidation ofConcrete (ACI 309R-05),” American Concrete Institute,Farmington Hills, MI, 35 pp.

33、C156-05 “Standard Test Method for Water Retention byLiquid Membrane Forming Curing Compoundsfor Concrete”C171-03 “Standard Specification for Sheet Materials forCuring Concrete”C 1315-06 “Standard Specification for Liquid MembraneForming Compounds Having Special Propertiesfor Curing and Sealing Concr

34、ete”NOTES TO SPECIFIERThis Specification is incorporated by reference in theProject Specification using the wording in P3 of the Prefaceand including information from the Mandatory Requirements,Optional Requirements, and Submittals Checklists followingthe Specification.PrefaceP1. ACI Specification 3

35、08.1 is to be used by reference orincorporation in its entirety in the Project Specification. Donot copy individual Sections, Parts, Articles, or Paragraphsinto the Project Specification, because taking them out ofcontext may change their meaning.P2. If Sections or Parts of ACI Specification 308.1 a

36、recopied into the Project Specification or any other document,do not refer to them as an ACI Specification, because thespecification has been altered.P3. A statement such as the following will serve to makeACI Specification 308.1 a part of the Project Specification:“Work on (Project Title) shall con

37、form to all requirements ofACI 308.1, Specification for Curing Concrete, published bythe American Concrete Institute, Farmington Hills, Michigan,except as modified by these Contract Documents.”P4. Each technical section of ACI Specification 308.1 iswritten in the three-part Section format of the Con

38、structionSpecifications Institute, as adapted for ACI requirements.The language is imperative and terse.P5. ACI Specification 308.1 is written to the Contractor.When a provision of this Specification requires action by theContractor, the verb “shall” is used. If the Contractor is allowedto exercise

39、an option when limited alternatives are available, thephrasing “either.or.” is used. Statements provided in theSpecification as information to the Contractor use the verbs“may” or “will.” Informational statements typically identifyactivities or options that “will be taken” or “may be taken” by theOw

40、ner or Architect/Engineer. P6. When ACI 301, “Specifications for Structural Concrete,”is referenced in a Project Specification, this Specificationshall not be referenced.Mandatory requirements checklistThe specifier is to determine the desired results of thecuring and select the appropriate section

41、or sections toachieve those results if a particular curing method isdesired. The Specifier is to use ACI 308R, “Guide toCuring Concrete,” as commentary for making decisionswithin the checklists. The alternative methods described ineach section of this specification are not necessarily equalin effect

42、iveness, cost, effect on project schedule, or impacton other aspects of the project. To use this specification,the Architect/Engineer must not only include this documentby reference in the Project Specification, but must alsoreview and respond to the checklists. It is imperative thatthe Architect/En

43、gineer annotate this specification to meetthe project requirements through the checklists. TheArchitect/Engineer must identify the concrete elementsthat are to be cured and must choose the method to curethem. Further, the Architect/Engineer must determinewhether deliberate curing efforts must or may

44、 terminateafter a predetermined time has elapsed, or only afterparticular levels of concrete properties have developed.When deliberate efforts to cure the concrete are to beterminated only when particular concrete properties havedeveloped, the Architect/Engineer must also select the testmethod used

45、to measure those properties. Checklists areprovided in this document to guide the Architect/Engineerthorough these selection processes, and the selections mustbe included in the Project Specification.SPECIFICATION FOR CURNG CONCRETE (ACI 308.1-11) 3American Concrete Institute Copyrighted Materialwww

46、.concrete.orgMANDATORY REQUIREMENTS CHECKLISTSection/Part/Article of ACI 308.1 Notes to Architect/Engineer1.1.1 and 1.1.2 Describe the work that is to be cured as required by this specification, or alternately, describe the work that is notto be cured in accordance with this specification. Specify a

47、ny elements for which this specification does not apply.SUBMITTALS CHECKLISTSection/Part/Article Submittal items and notes to Specifier1.4.2 ExecutionSubmit procedure for curing method(s) to be employed and data demonstrating that materials meetspecifications.1.4.2, 3.1, 3.2, and 3.5Cold weatherSubm

48、it cold-weather curing procedures at least 1 month before cold-weather concreting.1.4.2, 3.1, 3.2, and 3.6Hot weatherSubmit hot weather curing procedures at least 1 month before use and data demonstrating thatproposed materials meet specification requirements. There is currently no materials specifi

49、cation for evaporationretardants.1.5.2 The Contractor shall submit data on qualifications of proposed quality control testing agency for acceptance.2.1 and 2.2 MaterialsSubmit qualification test data called for in this specification as required by the Architect/Engineer forreview and acceptance.OPTIONAL REQUIREMENTS CHECKLISTSection/Part/Article Notes to Architect/Engineer1.2 Review the referenced standards to ensure the published dates are applicable to the specified project.2.1.1 Water loss requirements other than that required to meet ASTM C309 (AASHTO M 148) may be specified.Ap