1、Specification for Inspection of Concrete Construction Reported by ACI Committee 311 ACI 311.7-18 An ACI Standard First Printing April 2018 ISBN: 978-1-64195-008-4 Specification for Inspection of Concrete Construction Copyright by the American Concrete Institute, Farmington Hills, MI. All rights rese
2、rved. 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. The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities,
3、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 may be incomplete or incorrect. Users who have suggestions for the improvement of ACI documents are req
4、uested to contact ACI via the errata website at http:/concrete.org/Publications/ DocumentErrata.aspx. Proper use of this document includes periodically checking for errata for the most up-to-date revisions. ACI committee documents are intended for the use of individuals who are competent to evaluate
5、 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 responsibility for the application and use of this information. Al
6、l 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-infringement. ACI and its members disclaim liability for damages of any kind
7、, 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 document to establish health and safety practices appropriate to the s
8、pecific 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 applying the document and must comply with all applicable laws and r
9、egulations, including but not limited to, United States Occupational Safety and Health Administration (OSHA) health and safety standards. Participation by governmental representatives in the work of the American Concrete Institute and in the development of Institute standards does not constitute gov
10、ernmental endorsement of ACI or the standards that it develops. Order information: ACI documents are available in print, by download, through electronic subscription, or reprint and may be obtained by contacting ACI. Most ACI standards and committee reports are gathered together in the annually revi
11、sed the ACI Collection of Concrete Codes, Specifications, and Practices. American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 Phone: +1.248.848.3700 Fax: +1.248.848.3701 www.concrete.orgACI 311.7-18 supersedes ACI 311.7-14, became effective March 16, 2018, and was publishe
12、d April 2018. Copyright 2018, 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
13、reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors. 1 ACI 311.7-18 Specification for Inspection of Concrete Construction An ACI Standard Reported by ACI Committee 311 Michael C. Jaycox, *Chair Tracy Grover,
14、Secretary Joseph W. Clendenen Mario R. Diaz Robert L. Henry Jose Damazo Juarez Venkatesh S. Iyer Claude E. Jaycox * Robert S. Jenkins David Savage Woodward L. V ogt George R. Wargo Michelle L. Wilson Consulting Members Joseph F. Artuso Ann Balogh Roger E. Wilson * Task group preparing this specifica
15、tion. This reference specification covers quality assurance inspec- tion services for preplacement, placement, and post-placement of concrete construction. This reference specification can be made applicable to a particular construction project by citing it in the inspection services contract. The s
16、pecifier shall supplement the provisions of this reference specification as needed by specifying individual project requirements in the inspection services contract. The materials, processes, quality control measures, and inspec- tions described in this specification should be tested, monitored, or
17、performed as applicable only by individuals holding the appro- priate ACI Certifications or equivalent. Keywords: accreditation; certification; concrete construction; inspection agency; placement; post-placement; preplacement; special inspection; specification. (mandatory portion follows) CONTENTS S
18、ECTION 1GENERAL REQUIREMENTS, p. 2 1.1Scope, p. 2 1.2Units of measurement, p. 2 1.3Referenced standards, p. 2 1.4Definitions, p. 2 1.5Reporting requirements, p. 3 1.6Qualifications, p. 3 1.7Items requiring inspection, p. 3 SECTION 2PREPLACEMENT INSPECTION, p. 3 2.1General requirements, p. 3 2.2Formw
19、ork, shoring, and embedments, p. 3 2.3Mild steel reinforcement, p. 4 2.4Bonded post-tensioned steel reinforcement, p. 4 2.5Unbonded post-tensioned steel reinforcement, p. 5 2.6Stressing and grouting, p. 5 SECTION 3PLACEMENT INSPECTION, p. 5 3.1Concrete quality, p. 5 3.2Conveyance and placement, p. 5
20、 3.3Consolidation, p. 5 3.4Finishing, p. 5 SECTION 4POST-PLACEMENT INSPECTION, p. 5 4.1Protection and curing, p. 5 4.2Forms, shore removal, and reshoring, p. 5 4.3Strength test specimens, p. 6 SECTION 5CONCRETE ANCHORS, p. 6 5.1General, p. 6American Concrete Institute Copyrighted Material www.concre
21、te.org 2 SPECIFICATION FOR INSPECTION OF CONCRETE CONSTRUCTION (ACI 311.7-18) SECTION 6ERECTION OF PRECAST CONCRETE, p. 6 SECTION 7SHOTCRETE, p. 6 (nonmandatory portion follows) NOTES TO SPECIFIERS, p. 6 General notes, p. 6 Foreword to checklists, p. 6 (mandatory portion follows) SECTION 1GENERAL RE
22、QUIREMENTS 1.1Scope 1.1.1 Services specifiedThis specification sets the minimum requirements for quality assurance inspection of concrete construction whenever inspection services are required by the local building codes or the Contract Docu- ments. The services covered are directed to Special Inspe
23、c- tions covered in the current edition of the IBC. This specifi- cation is also valid for other projects at the option of the user. It includes inspection requirements for preplacement (rein- forcement, forms, and embedments), placement (conveyance and consolidation), and post-placement (finishing,
24、 curing, stressing, grouting, and formwork removal) of concrete construction, as well as requirements for personnel qualifi- cation and Inspection Agency accreditation. All inspection services required in this specification shall be performed by an Inspection Agency engaged by the Owner. 1.1.2 Indep
25、endenceAn Inspection Agency shall be objective, competent, and independent from the Contractor responsible for the Work being inspected. The Owner or the Owners Representative shall not delegate these services to the Contractor, Construction Manager, Construc- tion Manager at Risk, or any other part
26、y responsible for constructing the Work. 1.1.3 Coordination with ContractorThe Owner shall instruct the Contractor to coordinate with the Inspection Agency, provide access to the Work, and provide notifica- tion when the Work is ready for inspection. 1.2Units of measurement 1.2.1 UnitsInch-pound is
27、the standard units of measure- ment in this document. 1.3Referenced standards Standards cited in this specification are listed by name and designation, including year, unless otherwise specified. 1.3.1 American Concrete Institute ACI 301-16Specifications for Structural Concrete ACI 311.6-18Specifica
28、tion for Ready Mixed Concrete Testing Services ACI 318-14Building Code Requirements for Structural Concrete ACI 355.4-11Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary 1.3.2 ASTM International ASTM A706/A706M-15Standard Specification for Deformed and Plain Low-Alloy Steel
29、 Bars for Concrete Reinforcement ASTM E329-14Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection 1.3.3 American Welding Society AWS D1.4/D1.4M: 2011Structural Welding Code Reinforcing Steel 1.3.4 International Code Council IBC 2015 1.4Definitions Th
30、e following definitions govern in this specification. For definitions of other terms, refer to “ACI Concrete Termi- nology (ACI CT).” acceptanceacknowledgement by Architect/Engineer that submittal or completed work is acceptable. accreditationact or result of having an Inspection Agencys quality sys
31、tem, including equipment calibration and personnel certifications, reviewed and accredited by a qualified third-party Accreditation Agency. Architect/Engineer)architect, engineer, architectural firm, or engineering firm developing Contract Documents or administering the Work under construction Contr
32、act Docu- ments, or both. certified having met the requirements of a program that determines and attests that an individual is qualified to perform a specific service. Contractorperson, firm, or entity under contract for the construction of the Work. continuous inspectionfull-time observation of Wor
33、k requiring inspection by a Special Inspector who is present in the specific area where the Work is being performed. discrepancyan item that does not conform to the contract documents and is reported to the contractor for correction. inspection agencyperson, firm, or entity under contract for provid
34、ing inspection services. inspection servicesperiodic or continuous Special Inspections as required in this specification and Inspection Services Contract between the Owner and Inspection Agency. Inspection Services Contractset of documents supplied by the Owner to the Inspection Agency that serves a
35、s the basis for the agreement to perform inspection services; these documents can contain contract forms, contract conditions, Statement of Special Inspections, specifications, drawings, addenda, and contract changes. A different set of Contract Documents will exist between the Owner and constructio
36、n Contractor. Non-conformancediscrepancy that is not corrected prior to completion of that phase of the work and is reported to the building official and RDPRC so the RDPRC can deter- mine the action to be taken. Ownercorporation, association, partnership, indi- vidual, or public body or authority f
37、or whom the Work is constructed.American Concrete Institute Copyrighted Material www.concrete.orgSPECIFICATION FOR INSPECTION OF CONCRETE CONSTRUCTION (ACI 311.7-18) 3 periodic inspectionpart-time or intermittent obser- vation of Work requiring Special Inspection by a Special Inspector who is presen
38、t in areas where the work is being performed or at the completion of the Work. All items requiring inspection must be inspected before closing or before the Work is no longer accessible to inspect. Project Specificationwritten document that details requirements for the Work in accordance with servic
39、e parameters and other specific criteria. Registered Design Professional in Responsible Chargeused in place of Architect/Engineer in the IBC. Statement of Special Inspectiona list of the required special inspections and code references that is based on the project contract documents and prepared by
40、the RDPRC. Special Inspectioninspection of construction requiring the expertise of a Special Inspector to ensure compliance with the approved Contract Documents. Special Inspectoremployee of the Special Inspection Agency or an individual that is qualified and certified to perform the inspections des
41、cribed in this specification testing agencyperson, firm, or entity under contract for monitoring the quality of the materials as specified in the Contact Documents. verifyact of reviewing, inspecting, testing, and reporting that Work inspected is or is not in conformance with Contract Documents Work
42、entire construction or separately identifiable parts thereof required to be furnished under the Contract Documents. 1.5Reporting requirements 1.5.1 Comply with special inspection requirements of the applicable Building Code and with the additional require- ments of the Contract Documents. 1.5.2 Noti
43、fy the Contractor of discrepancies from approved Contract Documents daily, usually as soon as detecting the discrepancy. If uncorrected prior to the completion or covering of the Work, before further Work occurs, notify the Contractor, Owner, Architect/Engineer, and building official with copies of
44、the Non-Conformance Report (NCR). 1.5.3 Compile an NCR log (NCL) or similar document noting construction items not conforming to the Contract Documents. The NCL shall describe the nonconformance, date noticed, and individuals or organizations informed. Upon completion of the corrective action, updat
45、e the NCR and NCL to indicate the action and date of acceptance by the Architect/Engineer, Building Official, or both, as appropriate. 1.5.4 Submit progress reports to the Owner, Architect/ Engineer, and the Building Official, describing inspec- tions and tests that were performed, nonconformances,
46、and compliance of Work with the Contract Documents. 1.5.5 Submit a final summary report stating whether Work requiring inspection was, to the best of the inspectors knowledge, in conformance with the approved Contract Documents and applicable provisions of the building code. 1.6Qualifications 1.6.1
47、Inspection agencyUnless otherwise specified, Inspection Agency shall submit to Owner its qualifications and the qualifications of its inspectors as required in 1.6.1.1 and 1.6.1.2. 1.6.1.1 Special InspectorsUnless otherwise speci- fied, Inspectors conducting Special Inspections of concrete preplacem
48、ent (reinforcement, embedments, and forms), placement (conveyance and consolidation), and post- placement (finishing, curing, stressing, grouting, and form and shore removal) as defined in the local building code, shall be currently certified by ACI as a Concrete Construc- tion Special Inspector (CC
49、SI) or Concrete Transportation Construction Inspector (CTCI) or as acceptable to the local building official. 1.6.1.2 Inspection AgencyUnless otherwise specified, The Inspection Agency shall conform to the requirements of ASTM E329 as it pertains to concrete inspection and local building code requirements. The Inspection Agency shall be accredited by The American Association for Laboratory Accreditation (A2LA) or The International Accreditation Service (IAS) or as acceptable to the local Building Offi
