An ACl Standard
Specificationsfor Repair of Concrete in Buildings (ACI 563-18)
Reported by ACl Committee563
563-18
s
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SpecificationsforRepairofConcreteinBuildings (ACI563-18)
An ACI Standard
ReportedbyACl Committee563
Trmcy D. Marcote* Chair
Jay H. Pal Secretary
Jeffrey W. ColemanSidney Freedman Peter EmmonsFred R. Goodwin Paul E GaudetteJames K. Hicks
David W. WhitmoreConsulting Member John C. Hukey
Roger S. JohnstonKevin R. Krawiec Carl J. LaroscheKenneth M. Lozem* John S. LundMarjorie M. Lynch
James E. McDonaldJames A. Ragland Clyde Porter Jc.Michael M Sprinkel Kyle D. Stanish*David A. VanOcker
Edierial cmmite members
in 2016. The mitee expresses its appreciation forhis friendship and leaership. Tony Murray was the first mittee chair of ACI Committee 563 and a mitte member of ACI 563 at the time ofhis death
Special acknowledgement to Matthew R. Hansen* for his contribution to this Specification.
CONTENTS
afod qa pu a o qdd a3 This is α Reference Specijfication that the Architect/Engineeriving strctral concteby citing i in the PrjSpifc-lists are provided to asist rthe Architec/Engineer in sapplementing tions. Mandatory requrirements and Optional requirements check-the prvisis of this Specifction as reqired or needed by designating or specifying individu project requirements. he firstsection covers general constrction reqauirements for allrepair Wor. The secn sein cor shrig n baig f thtre or member to be repgired and addresses sequencing of repair Work as the strsctre is uloaded and relooded. The thind sectioncovers concrete removal and preparution of the concrete suhstratef eti cmrs ndprtionifcn p for repair and defines mon equipment and methods. The nextetary cementitious and polymer repair materials; reinforcement;: production placing finishing and curing of repair materials;joints; embeded items; repair of surface dfecs; mocas: and formwork performmance criteria and constrnuction; treatment oftesting evaluotion and acceptance of repair materials as well finishing of formed and snformed surfaces. Provisions governingas accepce of the repair Work are incladed. Sections 9 and 10 incorporute by reference wo other specifications-ACI 503.7 andACI 506.2into this ACI Standard to cover crack repoir by eposyinjection and shotcrete respectively.
SECTION1-GENERALREQUIREMENTS p.2
1.2-Interpretation p. 2 1.1--Scope p.213Definitions p. 3 1.4--Referenced standards p. 41.5-General procedures p. 61.7-Submitals p. 6 1.6-Preinstallation conference p. 61.8Quality assurance quality control testing andinspection p. 6 1.9Acceptanee of repair Work p. 8and field representative p. 9 1.10-Repair material manufacturer's technical suppot
SECTION 2-SHORING AND BRACING p.9
2.1-General p. 92.2-Produets p. 10 2.3-Execution p. 10
Keywords: bracing cold weather; pressive strength; consolida- tion; curing; durability; epoxy injection; finish; formwoek; grouting; hottion; reshoing shorin; shotrete; slab; seel reinforcment; surface p- weaher; inpectin; joints; mockups; placing; pecast; repair rhabilta-ration; testing: tolerance; welded wire.
SPECIFICATIONS FOR REPAIR OF CONCRETE IN BUILDINGS (ACI 563-18)SECTION3-CONCRETEREMOVALANDPREPARATION FOR REPAIR p.103.2-Products p. 10 3.1-General p. 103.3-Execution p. 11SECTION4FORMWORK p.124.2-Products p. 12 4.1-General p. 124.3Exeeution p. 13SECTION5-REINFORCEMENTANDREINFORCEMENT SUPPORTS p.14 5.1General p. 145.2-Products p. 15 5.3-Execution p. 17MIXTURES p.19 SECTION6-CONVENTIONALCONCRETE6.1-General p. 19 6.2Products p.196.3--Exeeution p. 24SECTION7-HANDLINGANDPLACINGOFCONVENTIONALCONCRETE p.24 7.1-General p. 247.3-Exeeution p. 25 7.2-Products p. 25SECTION8-PROPRIETARYCEMENTITIOUSAND POLYMER REPAIR MATERIALS p.298.1-General p. 298.2-Products p. 30 8.3Execution p.30SECTION9-CRACKREPAIRBYEPOXYINJECTION (ACI503.7) p.30SECTION10-SPECIFICATIONFORSHOTCRETE(ACI 506.2) p.30NOTES TO SPECIFIER (Nonmandatory) p.30General notes p. 30 Foreword to checklists p. 31MANDATORY REQUIREMENTS CHECKLIST p.33OPTIONALREQUIREMENTSCHECKLIST p.35SECTION 1-GENERAL REQUIREMENTS1.1-Scopeexisting structures. 1.1.1 This Specification covers repair of concrete inments and provides requirements for Contractor.
1.1.3 This Specification governs for construction withinits scope except other Contract Documents govem if thereis a conflict.
1.1.4 This Specification govems if there is a conflict withreferenced material and testing standards.
1.1.5 Contractor is permitted to submit written alterna-tives to any provision in this Specification for consideration.
ACI 301 ACI 350.5 or ACI 530.11 unless Contract Docu- 1.1.6 Do not use this Specification in conjunction withments state that this Specification govems for Work covered by 1.1.1.
1.1.7 Ignore provisions of this Specification that are notapplicable to Work.
1.1.8 Values in this Specification are stated in inch-poundunits. A panion specification in SI units is available.
1.1.9 The Notes to Specifiers are not part of thisSpecification.
1.2-Interpretation
shallbe interpreted using the following principles: 1.2.1 Unless otherwise explicitly stated this Specification
1.2.1.1 Interpret this Specification consistent with theplain meaning of the words and terms used.
1.2.1.2 Definitions provided in this Specification governfound elsewhere. over the definitions of the same or similar words or terms
1.2.1.3 Whenever possible interpret this Specification sothat its provisions are in harmony and do not conflict.
1.2.1.4 Headings are part of this Specification and arethat follow. If there is a difference in meaning or implication intended to identify the scope of the provisions or sectionsbetween the text of a provision and a heading the meaningof the text goverms.
1.2.1.5 Footnotes are part of this Specification. Themeaning of the provision text goverms in the event of a difference in meaning or implication between the provisiontext and a footnote to that provision.
two or more items conditions requirements or events 1.2.1.6 Where a provision of this Specification involvesconnected by the conjunctions “and" or *or ” interpret the conjunction as follows: “and? indicates that all the connecteditems conditions requirements or events apply; “or” indi-events apply singularly. cates that the connccted items conditions requirements or
that the Specification provision is for information to the 1.2.1.7 The use of the verbs “may” or “will" indicatesContractor.
means the specifier included the provision requirements in 1.2.1.8 The phrase “as indicated in Contract Documents"Contract Documents.
1.2.1.9 The phrase “unless otherwise specified" meansthe specifer may have included an altemative to the dfaultrequirement in Contract Documents.
1.1.2 This Specification is incorporated by Contract Docu-
1.2.1.10 The phrase *if specified" means the specifier mayhave included a requirement in Contract Documents for which there is no default requirement in this Specification.
1.3-Definitions
national standards body-activities are developing coordinating promulgating revising amending reissuing interpreting or otherwise producing technical standards that are intended to addressthe needs of a group of affected adopters.
acceptable or accepteddetermined by Architect/Engi-neer to be in pliance with Contract Documents.
acceptance-acknowledgment by Architect/Engineerthat submittal or pleted Work is acceptable.
Architect/Engineer-the architect engineer archi-tectural firm designing or engineering firm developingContract Documents or administering the Work under Contract Documents or both.
normalweight coneretestructural concrete containingaggregate that conforms to ASTM C33/C33M and that typi-cally has a density between 135 and 160 Ib/ft.
Owner-the corporation association partnership indi-vidual public body or authority for whom the Work is constructed.
exposed to view or is indicated as architectural concrete in architeetural concrete-concrete that is typicallyContraet Documents and therfore requires special care inselection of the concrete materials forming placing and finishing to obtain the desired architectural appearance.
post-tensioning-a method of prestressing reinforcedconcrete in which tendons are tensioned after the concrete has attained a specified minimum in-place strength or aspecified minimum age.
avoid local or global instability during construction evalua- bracingtemporary supplemental members used totion or repair that are intended to be removed after ple-tion of construction.
precast concrete-concrete cast elsewhere than its finalposition.
intended use. providefumish and install plete and ready for the
bruised surfaeea surface layer weakened by intercon-nected microcracks in concrete substrates caused by use of high-impact mechanical methods for concrete removaland surface preparation; fracture layer typically extends toa depth of 1/8 to 3/8 in. (3 to 10 mm) and if not removed frequently results in lower bond strengths pared tosurfaces prepared with nonimpact methods.
provide and document aurance that what is being done and quality assurance-actions taken by an organization towhat is being provided are in accordance with the ContractDocuments and standards of good practice for the Work.
quality controlactions taken by an organization toprovide control and documentation over what is being done and what is being provided so that the applicable standard ofgood practice or the Contract Documents for the work arefollowed.
cast-in-place conerete-concrete that is deposited andallowed to harden in the place where it is required to be inthe pleted structure as opposed to precast conrete.
reference specifieation-a standardized mandatory-language document prescribing materials dimensions and workmanship incorporated by reference in ContractDocuments.
construction joint (repair material)the interfacewhere two successive placements of repair material meet.
Contraet Documentsset of documents that form thebasis of a contractual relationship between an Owner andConstructor or Design-Builder. These documents are defined by the contractual agreement and can contain contract forms contract conditions specifications drawings addenda and contract changes.
documents of a technical society organization or associa- reference standardsstandardized mandatory-languagetion including codes of local or federal authorities which are incorporated by reference in Contract Documents.
Contraetorthe person firm or entity under contract forconstruction of the Work.
s ixe ture to a desired useful condition.
delaminationa planar separation in a material that isroughly parallel to the surface of the material.
repair-the reconstruction or renewal of concrete partsof an existing structure for its maintenance or to correct deterioration damage or faulty construction of members orsystems of a structure
drawings-graphic presentations that detail requirementsfor Work and may include written notes.
Documents: requiredmandatory in this Specification or Contract
required by the Contract Documents to be designed by a formwork engineer-designed-formwork that isspecialty engineer
of Work that are prepared by Contractor in accordance shop drawingdrawings that provide details for aportionwith Contract Documents and are reviewed by Architect/Engineer.
formwork non-engineer-designedformwork that isspecialty engineer not required by the Contract Documents to be designed by a
specialty engineerlicensed design professional retainedby a Contractor to design a delegated portion of the project.
installoperations at the Project site including theactual uloading upacking assembly ertion placing anchoring applying working to dimension finishing curing protecting cleaning and similar operations.
specificationsthe written document that details require-ments for Work.
pression used for the temporary support of excavations shoring(1) props or posts of timber or other material inshores. formwork or unsafe structures; (2) the process of ereting
lightweight aggregate conforming to ASTM C330/C330M lightweight coneretestructural concrete containingand having an equilibrium density as determined by ASTM C567/C567M between 90 and 115 Ib/f?.
microcrackcrack too small to be seen by the unaidedeye.
strength teststandard test conducted for evaluationand acceptance of concrete determined as the average of
