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1、ACI 440.5M-08 Reported by ACI Committee 440 Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars An ACI Standard Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars First Printing July 2008 ISBN 978-0-87031-288-5 American Concrete Institute Advancin
2、g concrete knowledge Copyright by the American Concrete Institute, Farmington Hills, MI. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI. Th
3、e technical committees responsible 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 occasionally find information or requirements that may be subject to more than one interpretation or
4、 may be incomplete or incorrect. Users who have suggestions for the improvement of ACI documents are requested to contact ACI. Proper use of this document includes periodically checking for errata at www.concrete.org/committees/errata.asp for the most up-to-date revisions. ACI committee documents ar
5、e intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains. Individuals who use this publication in any way assume all risk and accept total
6、 responsibility for the application and use of this information. All information in this publication is provided “as is” without warranty of any kind, either express or implied, including but not limited to, the implied warranties of merchantability, fitness for a particular purpose or non-infringem
7、ent. ACI and its members disclaim liability for damages of any kind, including any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of this publication. It is the responsibility of the user of this doc
8、ument to establish health and safety practices appropriate to the specific circumstances involved with its use. ACI does not make any representations with regard to health and safety issues and the use of this document. The user must determine the applicability of all regulatory limitations before a
9、pplying the document and must comply with all applicable laws and regulations, including but not limited to, United States Occupational Safety and Health Administration (OSHA) health and safety standards. Order information: ACI documents are available in print, by download, on CD-ROM, through electr
10、onic subscription, or reprint and may be obtained by contacting ACI. Most ACI standards and committee reports are gathered together in the annually revised ACI Manual of Concrete Practice (MCP). American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 U.S.A. Phone:248-848-3700
11、 Fax:248-848-3701 www.concrete.org ACI 440.5M-08 was adopted April 30, 2008, and published June 2008. Copyright 2008, 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 elec
12、tronic or mechanical device, printed, written, or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors. 440.5M-1 Specification for Construction with Fiber-Reinforced Poly
13、mer Reinforcing Bars An ACI Standard Reported by ACI Committee 440 ACI 440.5M-08 This Reference Specification covers construction using fiber-reinforced polymer reinforcing bars that the Architect/Engineer can make applicable to any construction project by citing it in the Project Specifications. Th
14、e Architect/Engineer supplements the provisions of this Reference Specification as needed by designating or specifying individual project requirements. Keywords: concrete; concrete construction; fiber-reinforced polymer reinforcement; placing; specification; tolerance. NOTE TO SPECIFIER This Specifi
15、cation is incorporated by reference in the Project Specification using the wording in P3 of the Preface and including information from the Mandatory Requirements, Optional Requirements, and Submittals Checklists following the Specifications. PREFACE P1. ACI Specification 440.5M-08 is intended to be
16、used by reference or incorporation in its entirety in the Project Specification. Do not copy individual Parts, Sections, Articles, or Paragraphs into the Project Specification, because taking them out of context may change their meaning. P2. If Sections or Parts of ACI Specification 440.5M-08 are co
17、pied into the Project Specification or any other document, do not refer to them as an ACI Specification, because the specification has been altered. P3. A statement such as the following will serve to make ACI Specification 440.5M-08 a part of the Project Specifica- tion: “Work on (Project Title) sh
18、all conform to all requirements of ACI 440.5M-08, “Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars,” published by the American Concrete Institute, Farmington Hills, Michigan, except as modified by these Contract Documents.” P4. Each technical Section of ACI Specificatio
19、n 440.5M-08 is written in the three-part Section format of the Construction Specifications Institute, as adapted for ACI requirements. The language is imperative and terse. Tarek AlkhrdajiRussell GentryJames G. KorffAndrea Prota Charles E. BakisJanos GergelyMichael W. LeeHayder A. Rasheed Lawrence C
20、. Bank*William J. GoldMaria Lopez de MurphySami H. Rizkalla Abdeldjelil BelarbiNabil F. GraceIbrahim M. MahfouzMorris Schupack Brahim BenmokraneMark F. GreenOrange S. MarshallRajan Sen Luke A. BisbyZareh B. GregorianAmir MirmiranKhaled A. Soudki Gregg J. BlaszakDoug D. Gremel*Ayman S. MosallamSamuel
21、 A. Steere III* Timothy E. Bradberry*Shawn P. GrossJohn J. MyersGamil S. Tadros Gordon L. Brown Jr.H. R. (Trey) Hamilton IIIAntonio NanniJay A. Thomas Vicki L. BrownIssam E. HarikKenneth NealeHoussam A. Toutanji Raafat El-HachaKent A. HarriesJohn P. NewhookJ. Gustavo Tumialan Garth J. Fallis*Mark P.
22、 Henderson*Ayman M. OkeilMilan Vatovec Amir Z. FamBohdan N. HoreczkoCarlos E. Ospina*Stephanie L. Walkup Edward R. FyfeVistasp M. KarbhariMax L. PorterDavid White John P. Busel Chair Carol K. Shield* Secretary *Contributing authors. Task group Chair. The committee also thanks Nick Carino, Bernard Dr
23、ouin, and Renato Parretti for their contributions. 440.5M-2ACI STANDARD P5. The Specification is written to the Contractor. When a provision of this Specification requires action by the Contractor, the verb “shall” is used. If the Contractor is allowed to exercise an option when limited alternatives
24、 are available, the phrasing “either.or.” is used. Statements provided in the Specification as information to the Contractor use the verbs “may” or “will.” Informational statements typically identify activities or options that “will be taken” or “may be taken” by the Owner or Architect/Engineer. CON
25、TENTS Preface, p. 440.5-1 Part 1General, p. 440.5-2 1.1Scope 1.2Definitions 1.3Reference standards 1.4Submittals 1.5Materials delivery, storage, and handling Part 2Products, p. 440.5-2 2.1Materials 2.2Fabrication Part 3Execution, p. 440.5-3 3.1Preparation 3.2Bar placement 3.3Repair of fiber-reinforc
26、ed polymer bars 3.4Field cutting of fiber-reinforced polymer reinforcement 3.5Concrete placement Foreword to checklists, p. 440.5-5 Mandatory requirements checklist, p. 440.5-5 Optional requirements checklist, p. 440.5-5 Submittals checklist, p. 440.5-5 PART 1GENERAL 1.1Scope 1.1.1 Work specifiedThi
27、s Specification covers cast-in- place structural concrete reinforced with fiber-reinforced polymer (FRP) bars except where other provisions are specified in the Contract Documents. 1.1.2 Work not specifiedThe subjects covered by ACI 301M are not in the scope of this Specification. 1.2Definitions acc
28、eptable or accepteddetermined to be satisfactory by the Architect/Engineer. acceptanceacknowledgment by Architect/Engineer that submittal or completed work is acceptable. Architect/Engineerthe architect, engineer, architectural firm, or engineering firm issuing Contract Documents or administering th
29、e Work under Contract Documents, or both. dielectrica substance, such as porcelain, glass, and most plastics, that is a poor conductor of electricity but an efficient supporter of electrostatic fields. 1.3Reference standards 1.3.1 Reference standardsStandards of ACI referred to in this Specification
30、 are listed with serial designation including year of adoption or revision, and are part of this Specification. 1.3.1.1 ACI standards 117-06Specifications for Tolerances for Concrete Construction and Materials 301M-05 Specifications for Structural Concrete 440.6M-08 Specification for Carbon and Glas
31、s Fiber- Reinforced Polymer (FRP) Bar Materials for Concrete Reinforcement 1.4Submittals Unless otherwise required by Contract Documents, submit data and drawings specified in 1.4.1 through 1.4.3 for review and acceptance before fabrication and execution: 1.4.1 Submit the data specified in 1.4.1.1 t
32、hrough 1.4.1.4 unless otherwise specified: 1.4.1.1 FRP reinforcementSubmit FRP bar manufac- turers certified test report. 1.4.1.2 Placing drawingsSubmit placing drawings showing fabrication dimensions and placement locations of FRP reinforcement and reinforcement supports. 1.4.1.3 SplicesSubmit a li
33、st of splices and request to use splices not indicated in Contract Documents. 1.4.1.4 SupportsSubmit description of reinforcement supports and materials for fastening reinforcement not described in 2.1.3. 1.4.2 FRP reinforcement relocationWhen alternatives are proposed, submit a request to relocate
34、any FRP reinforce- ment that exceeds specified placement tolerances. Include new arrangement of reinforcement and justification for new arrangement. 1.4.3 Inspection and quality controlSubmit quality assurance/quality control program of plant manufacturing FRP reinforcement unless otherwise specifie
35、d. 1.5Materials delivery, storage, and handling 1.5.1 Prevent bending, coating with earth, oil, or other material, or otherwise damaging the FRP reinforcement. 1.5.2 When handling FRP reinforcement, use equipment that avoids damaging or abrading the FRP bar. Lift bundles of FRP reinforcement at mult
36、iple pickup points. Do not drop or drag FRP reinforcement. 1.5.3 FRP reinforcing bars shall be stored above the surface of the ground on platforms, skids, or other supports as close as possible to the point of placement. If stored outdoors for more than 4 months, the FRP reinforcing bars shall be co
37、vered with opaque plastic or other types of cover that protect the bars from ultraviolet rays. 1.5.4 Prevent exposure of FRP reinforcing bars to temperatures above 50 C during storage. PART 2PRODUCTS 2.1Materials 2.1.1 FRP reinforcing barsFRP reinforcement shall be deformed, sand coated, or both to
38、provide bond with concrete unless otherwise stated in the Contract Documents. -,-,- SPECIFICATION FOR CONSTRUCTION WITH FRP REINOFRICNG BARS440.5M-3 FRP reinforcement shall be the types and sizes required by Contract Documents and shall conform to ACI 440.6M-08. 2.1.1.1 Permitted damageThe maximum t
39、otal unre- paired visible damage permitted on each linear meter of each FRP bar shall not exceed 2% of the surface area in that linear meter of bar. The depth of the permissible damage shall not exceed 1 mm. 2.1.2 Grids and gratingsPremanufactured grids and gratings are not covered by this Specifica
40、tion. Mat reinforce- ment made of preassembled FRP bars is covered by this Specification. 2.1.3 FRP reinforcement supportsUse reinforcement supports made of dielectric material or, if ferrous, coated with dielectric material, including epoxy or another polymer. 2.1.4 Precast concrete reinforcement s
41、upportsUse concrete supports that have a surface area of not less than 2500 mm 2 and a compressive strength and durability properties equal to or greater than the specified compressive strength of the concrete being placed. 2.2Fabrication 2.2.1 FRP reinforcementNo field fabrication is permitted exce
42、pt tying of FRP reinforcing bars, field cutting in accordance with the design or placement drawings, or both. Field cutting shall be performed as described in 3.4. PART 3EXECUTION 3.1Preparation 3.1.1 When concrete is placed, FRP reinforcement shall be free of materials deleterious to mechanical bon
43、d. 3.2Bar placement 3.2.1 TolerancesPlace, support, and fasten FRP rein- forcement as shown on the Project Drawings. Do not exceed the placing tolerances specified in ACI 117 before concrete is placed. Placing tolerances shall not reduce cover require- ments except as specified in ACI 117. 3.2.2 FRP
44、 reinforcement relocationWhen it is necessary to move FRP reinforcement beyond the specified placing tolerances to avoid interference with other reinforcement, conduits, or embedded items, submit the resulting reinforce- ment arrangement for approval. 3.2.3 Concrete coverUnless otherwise specified,
45、concrete cover for FRP reinforcement shall be as indicated in Table 3.1. Table 3.1 reports specified concrete cover require- ments for FRP reinforcement for all exposure conditions except those required for additional fire protection. For bundled FRP bars, specified concrete cover shall be equal to
46、the equivalent diameter of the bundle, but need not be greater than 50 mm, except the specified cover shall not be less than indicated in Table 3.1. The equivalent diameter of the bundle shall be computed based on the total area of the bundle. Tolerances on specified concrete cover shall meet the re
47、quirements of ACI 117. 3.2.4 FRP reinforcement supportsUnless otherwise permitted, use the reinforcement supports as given in 3.2.4.1 through 3.2.4.7. 3.2.4.1 Use precast concrete reinforcement supports to support reinforcement from the ground or a mud mat. 3.2.4.2 Use wire reinforcement supports th
48、at are galva- nized, coated with dielectric material, or made of dielectric material (including FRP) to support FRP reinforcement. 3.2.4.3 Reinforcement and embedded steel items used with FRP reinforcement shall be zinc-coated (galvanized) or coated with nonmetallic materials, or stainless steel or
49、stain- less steel clad. In the case of carbon FRP (CFRP) bars, zinc coatings, stainless steel, or stainless steel clad shall not be used in direct contact with CFRP bars. 3.2.4.4 Use steel wires or dowels coated with dielectric material or stainless steel when precast concrete reinforce- ment supports with embedded steel tie wires or dowels are used with FRP reinforcement. 3.2.4.5 Reinforcement used as supports for FRP rein- forcement shall be epoxy-coated or made of FRP. 3.2.4.6 In walls, us