SIST EN 447:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Grout for prestressing tendons - Basic requirementsInjekcijska masa za prednapete kable - Osnovne zahteveCoulis pour câble de précontrainte - Prescriptions pour les coulis courantsEinpressmörtel für Spannglieder - Allgemeine AnforderungenTa slovenski standard je istoveten z:EN 447:2007SIST EN 447:2008en,fr,de91.100.30ICS:SIST EN 447:19981DGRPHãþDSLOVENSKI
STANDARDSIST EN 447:200801-marec-2008







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 447October 2007ICS 91.100.30Supersedes EN 447:1996
English VersionGrout for prestressing tendons - Basic requirementsCoulis pour câble de précontrainte - Prescriptions pour lescoulis courantsEinpressmörtel für Spannglieder - AllgemeineAnforderungenThis European Standard was approved 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 447:2007: E



EN 447:2007 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Materials.6 4.1 Cement.6 4.2 Water.7 4.3 Admixtures.7 4.4 Additions.7 5 Batching and mixing of grout.7 6 Properties of grout.8 6.1 General.8 6.2 Sieve test.8 6.3 Fluidity.8 6.4 Bleeding.9 6.5 Volume change.9 6.6 Strength.9 6.7 Setting time.9 6.8 Density.9 7 Evaluation of conformity.10 7.1 Production control.10 7.2 Initial type testing.10 7.3 Audit testing.11 Bibliography.13



EN 447:2007 (E) 3 Foreword This document (EN 447:2007) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, 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 document supersedes EN 447:1996. 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



EN 447:2007 (E) 4 Introduction In post-tensioned prestressed concrete construction, the grouting of tendons is an important operation. The intention of this European Standard is to provide basic requirements for the approval of cement grouts, compliance with which will satisfy the requirements in prEN 13670. The main function of grouting is 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 transfer of compressive stresses in the structure in a direction transverse to internal tendons; • Fill all voids 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 this European standard; (2) Suitability testing for confirmation of the selected grout for a specific project in accordance with EN 446; (3) Inspection during grouting works on a specific project in accordance with EN 446. The test methods for each of the regimes are given in EN 445.



EN 447:2007 (E) 5
System of 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 structuresEN 446 Grout for prestressing tendons Grouting proceduresEN 447 Grout for prestressing tendonsBasic requirementsEN 445 Grout for prestressing tendonsTest methods CEN Workshop Agreement CWA 14646 Requirements for the installation of post-tensioning kits for prestressing of structures and qualification of specialist company and its personnel.



EN 447:2007 (E) 6
1 Scope This European Standard covers the materials that may be used in the manufacture of cement grouts and the required properties and composition of the grout. It is applicable to grouting of tendons in all types of structures including bridges and buildings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-3, Methods of testing cement – Part 3: Determination of setting times and soundness EN 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements EN 206-1:2000, Concrete – Part 1: Specification, performance, production and conformity EN 445, Grout for prestressing tendons – Test methods EN 446, Grout for prestressing tendons – Grouting procedures EN 934-2, Admixtures for concrete, mortar and grout – Part 2: Concrete admixtures - Definitions, requirements, conformity, marking and labelling
EN 934-4, Admixtures for concrete, mortar and grout – Part 4: Admixtures for grout for prestressing tendons – Definitions, requirements, conformity, marking and labelling EN 1008, Mixing water for concrete – Specification for sampling, testing and assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for concr
...