ACI 548.14-2014 Specification for Repairing Concrete with Epoxy Mortar.pdf

1、ACI 548.14-14Specification for Repairing Concrete with Epoxy MortarReported by ACI Committee 548An ACI StandardFirst PrintingFebruary 2015ISBN: 978-0-87031-996-9Specification for Repairing Concrete with Epoxy MortarCopyright by the American Concrete Institute, Farmington Hills, MI. All rights reserv

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11、sed ACI Manual of Concrete Practice (MCP).American Concrete Institute38800 Country Club DriveFarmington Hills, MI 48331Phone: +1.248.848.3700Fax: +1.248.848.3701www.concrete.orgThis specification describes the work of repairing defects in hard-ened portland-cement concrete with an epoxy mortar. Incl

12、uded are controls for epoxy resin system labeling, storage, handling, surface evaluation and preparation, mixing and application, inspection, quality control, and testing.Keywords: adhesion to concrete; aggregate; concrete construction; epoxy; hardened concrete; epoxy mortar; quality control; repair

13、s; resurfacing.CONTENTS(mandatory portion follows)PART 1GENERAL, p. 21.1Scope, p. 21.2Interpretation, p. 21.3Definitions, p. 21.4Referenced standards, p. 21.5Submittals, p. 21.6Product delivery, storage, and handling, p. 21.7Project conditions, p. 3PART 2PRODUCTS, p. 32.1Materials, p. 3PART 3EXECUTI

14、ON, p. 33.1Preparation, p. 33.2Inspection of surface prior to epoxy mortar appli-cation, p. 33.3Epoxy mortar mixtures, p. 33.4Epoxy mortar application, p. 33.5Field quality control, p. 33.6Cleanup, p. 33.7Safety, p. 4(nonmandatory portion follows)NOTES TO SPECIFIER, p. 4General notes, p. 4FOREWORD T

15、O CHECKLISTS, p. 4MANDATORY REQUIREMENTS CHECKLIST, p. 5OPTIONAL REQUIREMENTS CHECKLIST, p. 5(mandatory portion follows)Bradley Nemunaitis, Chair Mahmoud M. Reda Taha, SecretaryACI 548.14-14Specification for Repairing Concrete with Epoxy MortarAn ACI StandardReported by ACI Committee 548Ashraf I. Ah

16、medMohammad A. AlhassanMilton D. AndersonJacques A. BertrandConstantin BodeaChris DavisDavid W. FowlerQuentin L. HibbenAlbert O. KaedingJohn R. MillironMyles A. MurrayJoseph A. Nuciforo Jr.John R. RobinsonMichael L. SchmidtJoe SolomonMichael M. SprinkelMichael S. StenkoDonald P. TragianeseWafeek S.

17、WahbyDavid WhiteDavid P. WhitneyRichard E. WollmershauserConsulting MembersLu AnqiCraig A. BallingerJohn J. BartholomewShashi P. BhatnagarZhi-Yuan ChenInz Lech CzarneckiHarold (Dan) R. EdwardsLarry J. FarrellJack J. FontanaGeorge HoreczkoDavid P. HuBert Paw KriekemansDeon KrugerWilliam LeeTroy D. Ma

18、deleyHenry N. Marsh Jr.Peter MendisPeter J. MossYoshihiko OhamaKelly M. PageJerzy PietrzykowskiHamid SaadatmaneshDonald A. SchmidtMeyer SteinbergHarold H. Weber Jr.ACI 548.14-14 was adopted December 18, 2014 and published February 2015.Copyright 2014, American Concrete Institute.All rights reserved

19、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 reproduc-tion or for use in any knowledge or retrieval system or device, unles

20、s permission in writing is obtained from the copyright proprietors.1PART 1GENERAL1.1Scope1.1.1 This specification covers the repairing of defects in hardened concrete with an epoxy mortar as specified in Contract Documents.1.1.2 This specification governs for construction within its scope, except th

21、e Contract Documents govern if there is a conflict.1.1.3 Values in this specification are stated in inch-pound units. A companion specification in SI units is also available.1.1.4 The Notes to Specifier are not part of this specification.1.2InterpretationUnless otherwise explicitly stated, this spec

22、ification shall be interpreted using the following principles:(a) Interpret this specification consistent with the plain meaning of the words and terms used.(b) Definitions provided in this specification govern over the definitions of the same or similar words or terms found elsewhere.(c) Whenever p

23、ossible, interpret this specification so that its provisions are in harmony and do not conflict.(d) Headings are part of this specification and are intended to identify the scope of the provisions or sections that follow. If there is a difference in meaning or implication between the text of a provi

24、sion and a heading, the meaning in the text governs.(e) Where a provision of this specification involves two or more items, conditions, requirements, or events connected by the conjunctions “and” or “or,” interpret the conjunction as follows:“and” indicates that all of the connected items, condition

25、s, requirements, or events apply.“or” indicates that the connected items, conditions, requirements, or events apply singularly.(f) The use of the verbs “may” or “will” indicates that the specification provision is for information to the Contractor.1.3DefinitionsThe following definitions govern in th

26、is specification. For definitions not given below, refer to “ACI Concrete Termi-nology,” http:/www.concrete.org/Tools/ConcreteTermi-nology.aspx.accepteddetermined to be satisfactory by Architect/Engineer.Architect/Engineerarchitect, engineer, architectural firm, or engineering firm developing Contra

27、ct Documents or administering the Work under Contract Documents, or both.Contract Documentsa set of documents supplied by the Owner to bidders during bidding phase of a construc-tion project. These documents include general requirements, contract forms, contract conditions, specification, drawings,

28、and addenda.Contractorthe person, firm, or entity under contract for construction of Work.defectan imperfection of sufficient size or magni -tude to causes nonconformance from the intended state or performance.epoxya thermosetting polymer that is the reaction product of epoxy resin and hardener.epox

29、y mortara mixture of epoxy resin, hardener, and fine aggregate.Ownerthe corporation, association, partnership, individual, public body, or authority for whom Work is constructed.submitprovide to Architect/Engineer for review.submittaldocument or material provided to the Archi-tect/Engineer for revie

30、w and acceptance.Workthe entire construction or separately identifi-able parts thereof required to be furnished under Contract Documents.1.4Referenced standardsStandards of ASTM referred to in this standard are listed with serial designations, including year of adoption or revi-sion, and are part of

31、 this standard.1.4.1 ASTM InternationalASTM C579-01(2012)Standard Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer ConcretesASTM C881/C881M-13Standard Specification for Epoxy-Resin-Base Bonding Systems for ConcreteASTM C1583/C1583-13Stan

32、dard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Mate-rials by Direct Tension (Pull-off Method)1.5Submittals1.5.1 CertificationsSubmit manufacturers certification verifying conformance to material specifications.1.5.2

33、 Application controlSubmit mixing and applica-tion procedures for acceptance prior to use.1.5.3 DataSubmit manufacturers technical data sheets and material safety data sheets (MSDS).1.5.4 Preparation proceduresSubmit surface prepara-tion procedures and equipment.1.6Product delivery, storage, and han

34、dling1.6.1 Delivery of materialsDeliver all materials in sealed containers with labels legible and intact.1.6.2 LabelingOnly use materials that are marked with the following information:a) Name of manufacturerb) Manufacturers product identificationc) Manufacturers instructions for mixingd) Warning f

35、or handling and toxicitye) Expiration date and lot number1.6.3 Storage of materialsStore all materials at temper-atures between 40 to 100F, unless otherwise recommended by manufacturer.1.6.4 Handling of materialsHandle all materials to avoid breaking container seals and in accordance with the MSDS a

36、nd manufacturers recommendations.American Concrete Institute Copyrighted Material www.concrete.org2 SPECIFICATION FOR REPAIRING CONCRETE WITH EPOXY MORTAR (ACI 548.14-14)1.7Project conditions1.7.1 Environmental requirementsComply with manu-facturers recommendations and specified project condi-tions

37、regarding environmental conditions under which the epoxy mortar shall be applied and cured, unless otherwise specified.PART 2PRODUCTS2.1Materials2.1.1 Epoxy resin systemUse ASTM C881/C881M Type III epoxy-resin bonding system, unless otherwise speci-fied. Curing temperature requirements (class) and v

38、iscosity (grade), as well as special requirements regarding either the components or the final system, shall be appropriate for specified project conditions.2.1.2 Fine aggregateUse fine aggregate that conforms to the requirements of the epoxy resin system manufacturer.2.1.3 Epoxy mortarThe combined

39、epoxy resin system and fine aggregate, in ratios recommended by the epoxy resin system manufacturer, shall have a compressive strength of at least 5000 psi, unless otherwise specified, when tested in accordance with ASTM C579.2.1.4 CompatibilityMaterials shall be compatible with materials or related

40、 Work with which they come into contact.PART 3EXECUTION3.1Preparation3.1.1 Preparation of concrete surfaces3.1.1.1 Mechanical abrasionConcrete surfaces to which epoxy mortar is to be applied shall be newly prepared concrete free of loose and unsound materials. Prepare surfaces according to one of th

41、e following, unless other-wise specified: shotblasting, sandblasting, scarifying, or waterblasting.3.2Inspection of surface prior to epoxy mortar application3.2.1 Inspect all prepared concrete surfaces prior to appli-cation of epoxy mortar.3.2.2 Prepared surfaces shall be sound concrete that exhibit

42、s a minimum average pull-off strength of 250 psi, unless otherwise specified, using the procedure described in ASTM C1583/C1583M, except that the tensile adhe-sion evaluation shall not be performed at concrete surface temperatures above 80F. Contact the Architect/Engineer to determine test locations

43、.3.2.3 Surface shall be free of deleterious materials such as laitance, curing compounds, dust, dirt, oil, and incom-patible materials from previous repairs. Materials resulting from surface preparation shall be removed. Any limitations on the removal of preparation materials shall be as specified i

44、n Contract Documents.3.2.4 At the time of installation, surface temperature of the concrete shall be at least 40F, unless otherwise specified, for ASTM C881/C881M Classes A and B multi-component epoxy adhesives to permit wetting of concrete surface by epoxy mortar. Surface temperature shall be at le

45、ast 60F for ASTM C881/C881M Class C multi-component epoxy adhesives.3.2.5 All concrete surfaces shall not exceed saturated surface-dry conditions at the time of installation, unless otherwise specified.3.3Epoxy mortar mixtures3.3.1 Condition epoxy mortar components to be at a temperature between 60

46、and 100F, unless otherwise recom-mended by manufacturer.3.3.2 Mix epoxy mortar components, including fine aggre-gate, as recommended by the epoxy resin system manufac-turer, in a clean container.3.3.3 Blend epoxy mortar components with a mechanical mixer to a uniform and homogeneous mixture. Mix sma

47、ll batches (up to 1 quart) by use of spatulas, palette knives, or similar devices.3.4Epoxy mortar application3.4.1 Apply epoxy mortar to concrete surface with trowel or screed. Thickness shall be within the limits recommended by the epoxy resin system manufacturer.3.4.2 Work epoxy mortar into place

48、and consolidate so that all contact surfaces are wet by the epoxy mortar.3.4.3 Finish surface of epoxy mortar to texture required for the specific application.3.4.4 Upon completion of finishing operations, allow epoxy mortar to cure in accordance with epoxy resin system manufacturers recommendations

49、.3.5Field quality control3.5.1 Test in accordance with ASTM C1583/C1583M. An evaluation shall be the average of three tests within the test location and have a minimum average pull-off strength of 250 psi, unless otherwise specified. Contact Architect/Engi-neer to determine test locations.3.5.2 If the test results do not meet the required average pull-off strength, check the surface preparation procedures and the manufacturers batching, mixing, placing, and curing requirements. Repeat the tests within the prev