BS EN 446-2007 Grout for prestressing tendons - grouting procedures1.pdf
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1、BRITISH STANDARD BS EN 446:2007 Grout for prestressing tendons Grouting procedures The European Standard EN 446:2007 has the status of a British Standard ICS 91.100.10; 91.100.30 ? Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI BS EN 446:2007 This British Standard was published
2、 under the authority of the Standards Policy and Strategy Committee on 30 November 2007 BSI 2007 ISBN 978 0 580 55813 9 National foreword This British Standard is the UK implementation of EN 446:2007. It supersedes BS EN 446:1997 which is withdrawn. The UK participation in its preparation was entrus
3、ted by Technical Committee B/525, Building and civil engineering structures, to Subcommittee B/525/2, Structural use of concrete. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisio
4、ns of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI EUROPEAN STANDARD NORM
5、E EUROPENNE EUROPISCHE NORM EN 446 October 2007 ICS 91.100.30Supersedes EN 446:1996 English Version Grout for prestressing tendons - Grouting procedures Coulis pour cble de prcontrainte - Procdures dinjection de coulis Einpressmrtel fr Spannglieder - Einpressverfahren This European Standard was appr
6、oved by CEN on 21 June 2007. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national s
7、tandards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notifi
8、ed to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
9、a, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of expl
10、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 446:2007: E Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI EN 446:2007 (E) 2 Contents Page Foreword3 Introduction.4 1 Scope 6 2 Normative references6 3 Terms and definitions .6 4 Docu
11、mentation.6 4.1 Execution specification.6 4.2 Quality plan 7 4.3 Execution documentation.7 5 Materials .7 6 Grout assessment8 6.1 Suitability testing.8 6.2 Project specific grouting tests.8 7 Equipment 9 7.1 General9 7.2 Mixer9 7.3 Pump.9 7.4 Hoses 9 7.5 Inlet connections .10 7.6 Stand-by and emerge
12、ncy equipment.10 8 Grouting procedures.10 8.1 Inlets, outlets and tendon anchorages10 8.2 Precautions before grouting.10 8.3 Temperature at grouting .11 8.4 Grouting operations 11 8.5 Precautions after grouting11 9 Quality Management12 9.1 General12 9.2 Personnel12 9.3 Inspection.12 9.4 Conformity c
13、riteria.15 9.5 Action in the event of a non-conformity16 Bibliography17 Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI w w w . b z f x w . c o m EN 446:2007 (E) 3 Foreword This document (EN 446:2007) has been prepared by Technical Committee CEN/TC 104 “Concrete and related prod
14、ucts”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. This
15、document supersedes EN 446:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, H
16、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI w w w . b z f x w . c o m EN 446:2007 (E) 4 I
17、ntroduction In post-tensioned prestressed concrete construction, the grouting of tendons is an important operation. The intention of this European Standard is to provide a specification for grouting, compliance with which will satisfy the requirements in prEN 13670. The main function of grouting is
18、to Provide protection to the prestressing steel against corrosion; Provide a bond between the prestressing steel and the ducts where required for the design of the structure; Allow the transfer of compressive stresses in the structure in a direction transverse to the internal tendons; Fill all voids
19、 where water may accumulate and cause frost damage. The testing regimes anticipated by this European Standard include three levels: (1) Initial type and audit testing in accordance with EN 447; (2) Suitability testing for confirmation of the selected grout for a specific project in accordance with t
20、his standard; (3) Inspection during the production of grout on a specific project in accordance with this standard. The test methods for each of the regimes are given in EN 445. Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI w w w . b z f x w . c o m EN 446:2007 (E) 5 System of
21、 CEN and EOTA documents as basis for design, execution and materials selection for protective measures of prestressing systems (only main modules). EN 1992 Eurocode 2:Design of concrete structures prEN 13670 Execution of concrete structures ETAG 013 Post-tensioning kits for prestressing of structure
22、s EN 446 Grout for prestressing tendons Grouting procedures EN 447 Grout for prestressing tendons Basic requirements EN 445 Grout for prestressing tendons Test methods CEN Workshop Agreement CWA 14646 Requirements for the installation of post-tensioning kits for prestressing of structures and qualif
23、ication of specialist company and its personnel. Licensed copy:PONTYPRIDD COLLEGE, 05/01/2008, Uncontrolled Copy, BSI w w w . b z f x w . c o m EN 446:2007 (E) 6 1 Scope This European Standard gives the procedures to be used for grouting of tendons in post-tensioned prestressed concrete. It is appli
24、cable to all types of structures including bridges and buildings. This standard also covers suitability testing and inspection testing for grouts and their component materials used on a project. 2 Normative references The following referenced documents are indispensable for the application of this d
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