1、ACI 117-10(Reappoved 2015)Specification for Tolerances forConcrete Construction and Materials(ACI 117-10) andCommentary (ACI 117R-10)An ACI StandardReported by ACI Committee 117Specification for Tolerances for Concrete Construction and Materialsand Commentary00rintingJune 201ISBN 978-0-87031-379-0Co
2、pyright by the American Concrete 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 res
3、ponsible for ACI committee reports 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 incorre
4、ct. Users who have suggestions for the improvement of ACI documents arerequested to contact ACI. Proper use of this document includes periodically checking for errata atwww.concrete.org/committees/errata.asp for the most up-to-date revisions.ACI committee documents are intended for the use of indivi
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10、 by contacting ACI.Most ACI standards 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.org1ACI 117-10 supersedes
11、 ACI 117-06 and was adopted March 1, 2010 and publishedJune 2010.Copyright 2010, 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, wr
12、itten, or oral, or recording for sound or visual reproductionor for use in any knowledge or retrieval system or device, unless permission in writingis obtained from the copyright proprietors.ACI Committee Reports, Guides, Manuals, and Commentariesare intended for guidance in planning, designing, exe
13、cuting,and inspecting construction. This document is intended for theuse of individuals who are competent to evaluate thesignificance and limitations of its content and recommendationsand who will accept responsibility for the application of thematerial it contains. The American Concrete Institute d
14、isclaimsany and all responsibility for the stated principles. The Instituteshall not be liable for any loss or damage arising therefrom.Reference to this document shall not be made in contractdocuments. If items found in this document are desired by theArchitect/Engineer to be a part of the contract
15、 documents, theyshall be restated in mandatory language for incorporation bythe Architect/Engineer.ACI 117 Specification and Commentary are presented in a side-by-side column format, with code text placed in the left columnand the corresponding commentary text aligned in the rightcolumn. To distingu
16、ish the specification from the commentary, thespecification has been printed in Helvetica, which is the typefacefor this paragraph.The Commentary is printed in Times Roman, which is the typeface forthis paragraph. Commentary section numbers are preceded by the letter“R” to distinguish them from spec
17、ification section numbers. Thecommentary is not a part of ACI Specification 117-10.Specification for Tolerances for Concrete Construction and Materials (ACI 117-10)and Commentary (ACI 117R-10)An ACI StandardReported by ACI Committee 117ACI 117-10(Reapproved 2015)Specification synopsis: This specific
18、ation provides standard tolerances for concrete construction and materials. This document is intended to be usedby specification writers and ACI committees writing standards as the reference document for establishing tolerances for concrete constructionand materials.Commentary synopsis: This report
19、is a commentary on the “Specifications for Tolerances for Concrete Construction and Materials (ACI 117).” It is intendedto be used with ACI 117 for clarity of interpretation and insight into the intent of the committee regarding the application of the tolerances set forth therein.Keywords: architect
20、ural concrete; concrete; construction; drilled piers; formwork; foundation; mass concrete; pier; prestressed concrete; reinforced con-crete; reinforcement; specification; splice; tilt-up concrete; tolerances.Scott M. Anderson Allen Face Donald M. Marks David N. PetersonKarl J. Bakke Robert A. Halvor
21、son Ross S. Martin William S. PhelanDavid K. Ballast Mark G. Josten Steven W. McCrary B. Duke PointerBryan M. Birdwell Richard L. Knox Arthur W. McKinney Peter J. RutturaGregory P. Birley Jeff L. LaRue Colin T. Milberg Michael J. SchneiderThomas J. Downs Michael W. Lee William R. Nash Bruce A. Supre
22、nantRon Eldridge Michael L. Leming Bob L. Payne Michael A. WestEldon G. TippingChairScott Michael AndersonSecretaryA metric version of this document (ACI117M-10) is available at www.concrete.org2 SPECIFICATION FOR TOLERANCES FOR CONCRETE CONSTRUCTION AND MATERIALS (ACI 117-10) AND COMMENTARYAmerican
23、 Concrete Institute Copyrighted Materialwww.concrete.orgCONTENTSIntroduction, p. 3Section 1General requirements, p. 51.1Scope1.2Requirements1.3Definitions1.4Referenced standardsSection 2Materials, p. 132.1Reinforcing steel fabrication and assembly2.2Reinforcement location2.3Placement of embedded ite
24、ms, excluding dowels inslabs-on-ground2.4Concrete batching2.5Concrete propertiesSection 3Foundations, p. 253.1Deviation from plumb3.2Deviation from location3.3Deviation from elevation3.4Deviation from plane3.5Deviation from cross-sectional dimensions offoundationsSection 4Cast-in-place concrete for
25、buildings, p. 314.1Deviation from plumb4.2Deviation from location4.3Not used4.4Deviation from elevation4.5Deviation from cross-sectional dimensions4.6Deviation from formed opening width or height4.7Deviation from relative elevations or widths for stairs4.8Deviation from slope or plane4.9Sawcut depth
26、 in slab-on-groundSection 5Cast-in-place concrete at interface with precast concrete (except tilt-up concrete), p. 455.1Deviation from elevationcast-in-place concrete5.2Deviation from locationcast-in-place concrete5.3Deviation from dimensioncast-in-place concrete5.4Deviation from plane at bearing su
27、rfacecast-in-place concrete measured over length or width ofbearing surfaceSection 6Masonry, p. 51This section has been removed.Section 7Cast-in-place, vertically slipformed building elements, p. 537.1Deviation from plumb for buildings and cores7.2Horizontal deviation7.3Cross-sectional dimensions7.4
28、Openings through elements7.5Embedded plates7.6Deviation from plumb for slipformed and jump-formed silosSection 8Mass concrete, p. 558.1Deviation from plumb8.2Horizontal deviation8.3Vertical deviation8.4Cross-sectional dimension8.5Deviation from planeSection 9Canal lining, p. 579.1Horizontal deviatio
29、n9.2Vertical deviation9.3Cross-sectional dimensionsSection 10Monolithic water-conveying tunnels, siphons, conduits, and spillways, p. 5910.1Horizontal deviation10.2Vertical deviation10.3Cross-sectional dimensions10.4Deviation from planeSection 11Cast-in-place bridges, p. 6111.1Deviation from plumb11
30、.2Horizontal deviation11.3Vertical deviation11.4Length, width, or depth of specified elements11.5Deviation from plane11.6Deck reinforcement cover11.7Bearing padsSection 12Exterior pavements and sidewalks,p. 6312.1Horizontal deviation12.2Vertical deviation of surfaceSection 13Chimneys and cooling tow
31、ers,p. 6513.1Deviation from plumb13.2Outside shell diameter13.3Wall thicknessSection 14Cast-in-place nonreinforced pipe, p. 6714.1Wall thickness14.2Pipe diameter14.3Offsets14.4Surface indentations14.5Grade and alignment14.6Concrete slumpSection 15Tilt-up concrete, p. 6915.1Panel forming15.2Deviation
32、 from plumb15.3Deviation from elevation15.4Deviation from location15.5Deviation from slope or plane15.6Deviation from relative widthsNotes to Specifier, p. 73General notesForeword to checklists, p. 75Mandatory Requirements Checklist, p. 75Optional Requirements Checklist, p. 76SPECIFICATION COMMENTAR
33、YSPECIFICATION FOR TOLERANCES FOR CONCRETE CONSTRUCTION AND MATERIALS (ACI 117-10) AND COMMENTARY 3American Concrete Institute Copyrighted Materialwww.concrete.orgINTRODUCTIONThis commentary pertains to “Specifications for Tolerancesfor Concrete Construction and Materials (ACI 117-10).”The purpose o
34、f the commentary is to provide an illustrativeand narrative complement to the specification; it is not apart of the specification.No structure is exactly level, plumb, straight, and true.Tolerances are a means to establish permissible variation indimension and location, giving both the designer and
35、thecontractor limits within which the work is to be performed.They are the means by which the designer conveys to thecontractor the performance expectations upon which thedesign is based or that the project requires. Such specifiedtolerances should reflect design assumptions and projectneeds, being
36、neither overly restrictive nor lenient.Necessity rather than desirability should be the basis ofselecting tolerances.As the title “Specifications for Tolerances for ConcreteConstruction and Materials (ACI 117)” implies, the toler-ances given are standard or usual tolerances that apply tovarious type
37、s and uses of concrete construction. They arebased on normal needs and common construction tech-niques and practices. Specified tolerances at variance withthe standard values can cause both increases and decreasesin the cost of construction.Economic feasibilityThe specified degree of accuracy hasa d
38、irect impact on the cost of production and the constructionmethod. In general, the higher degree of constructionaccuracy required, the higher the construction cost, and thelower the degree of construction accuracy, the higher thecost of required repairs.Relationship of all componentsThe required deg
39、ree ofaccuracy of individual parts can be influenced by adjacentunits and materials, joint and connection details, and thepossibility of the accumulation of tolerances in criticaldimensions.Construction techniquesThe feasibility of a tolerancedepends on available craftsmanship, technology, materials
40、,and project management.CompatibilityDesigners are cautioned to use finish andarchitectural details that are compatible with the type andanticipated method of construction. The finish and archi-tectural details used should be compatible with achievableconcrete tolerances.4 SPECIFICATION FOR TOLERANC
41、ES FOR CONCRETE CONSTRUCTION AND MATERIALS (ACI 117-10) AND COMMENTARYSPECIFICATION COMMENTARYAmerican Concrete Institute Copyrighted Materialwww.concrete.orgContract document referencesACI specification documentsThe following AmericanConcrete Institute standards provide mandatory tolerancerequireme
42、nts for concrete construction and can be referencedin Contract Documents:117 Specification for Tolerances for ConcreteConstruction and Materials and CommentaryITG-7 Specification for Tolerances for PrecastConcrete301 Specifications for Structural Concrete303.1 Standard Specification for Cast-in-Plac
43、eArchitectural Concrete336.1 Specification for the Construction of DrilledPiersTMS 602/530.1/ASCE 6 Specification for Masonry Structures andCommentaryACI informative documentsThe documents of thefollowing American Concrete Institute committees coverpractice, procedures, and state-of-the-art guidance
44、 for thecategories of construction as listed:General building ACI 302, 303, 304, 305, 311, 315, 336, 347Special structuresACI 207, 307, 313, 325, 332, 334, 358Materials 211, 223Other 228SPECIFICATION COMMENTARYSPECIFICATION FOR TOLERANCES FOR CONCRETE CONSTRUCTION AND MATERIALS (ACI 117-10) AND COMM
45、ENTARY 5American Concrete Institute Copyrighted Materialwww.concrete.org1.1Scope1.1.1 This specification designates standard tolerancesfor concrete construction.1.1.2 The indicated tolerances govern unless other-wise specified.Tolerances in this specification are for typical concreteconstruction and
46、 construction procedures and are appli-cable to exposed concrete and to architectural concrete.Materials that interface with or connect to concreteelements may have tolerance requirements that are notcompatible with those contained in this document.This specification does not apply to specializedstr
47、uctures, such as nuclear reactors and containmentvessels, bins, prestressed circular structures, andsingle-family residential construction. It also does notapply to precast concrete or to shotcrete.Tolerances for specialized concrete construction thatis outside the scope of this specification shall
48、bespecified in Contract Documents.1.1.3 A series of preconstruction tolerance coordina-tion meetings shall be scheduled and held prior to thecommencement of the Work. The Contractor,subcontractors, material suppliers, and other keyparties shall attend. All parties shall be given theopportunity to id
49、entify any tolerance questions andconflicts that are applicable to the work with materials,prefabricated elements, and Work assembled/installedin the field by the Contractor.1.2Requirements1.2.1 Concrete construction and materials shallcomply with specified tolerances.SECTION 1GENERAL REQUIREMENTSR1.1ScopeR1.1.2 Specification of more restrictive tolerances forspecialized construction, such as architectural concrete,often results in an increase in material cost and time ofco
