1、September 2009DEUTSCHE NORM English price group 11No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91.100.30!$YXZ“15453
2、55www.din.deDDIN EN 934-4Admixtures for concrete, mortar and grout Part 4: Admixtures for grout for prestressing tendons Definitions, requirements, conformity, marking and labellingEnglish version of DIN EN 934-4:2009-09Zusatzmittel fr Beton, Mrtel und Einpressmrtel Teil 4: Zusatzmittel fr Einpressm
3、rtel fr Spannglieder Definitionen, Anforderungen, Konformitt, Kennzeichnung und BeschriftungEnglische Fassung DIN EN 934-4:2009-09SupersedesDIN EN 934-4:2002-02 andDIN EN 934-4/A1:2005-06See start of validitywww.beuth.deDocument comprises pages21DIN EN 934-4:2009-09 Start of validity This standard t
4、akes effect on 1 September 2009. It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Bundesanzeiger (German Federal Gazette) and from the date given therein. National foreword This standard has been prepared
5、by Technical Committee CEN/TC 104 “Concrete and related products” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee NA 005-07-23 AA Betonzusatzmittel. Amendme
6、nts This standard differs from DIN EN 934-4:2002-02 and DIN EN 934-4/A1:2005-06 as follows: a) The former Table 1 with general requirements for admixtures for concrete, mortar and grout has been deleted (now included in EN 934-1:2008, Admixtures for concrete, mortar and grout General requirements).
7、b) EN 934-4:2001/A1:2004 has been incorporated. c) Annex B “Bleed and volume change test”, taking into account the modifications in EN 445-2008 “Grout for prestressing tendons Test methods”, has been included. d) Annex ZA has been updated. e) The standard has been editorially revised. Previous editi
8、ons DIN EN 934-4/A1: 2005-06 DIN EN 934-4: 2000-03, 2002-02 2 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 934-4May 2009ICS 91.100.30 Supersedes EN 934-4:2001 English VersionAdmixtures for concrete, mortar and grout - Part 4: Admixturesfor grout for prestressing tendons - Definitions, requireme
9、nts,conformity, marking and labellingAdjuvants pour bton, mortier et coulis - Partie 4: Adjuvantspour coulis de cble de prcontrainte - Dfinitions,exigences, conformit, marquage et tiquetageZusatzmittel fr Beton, Mrtel und Einpressmrtel - Teil 4:Zusatzmittel fr Einpressmrtel fr Spannglieder -Definiti
10、onen, Anforderungen, Konformitt, Kennzeichnungund BeschriftungThis European Standard was approved by CEN on 24 April 2009.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 withou
11、t 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 mad
12、e 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,
13、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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG
14、Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 934-4:2009: EEN 934-4:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Compositi
15、on and preparation of test mix .54.1 Constituent materials 54.2 Water/cement ratio.54.3 Fluidity 54.4 Mixing 55 Requirements .55.1 General 55.2 Specific .55.3 Release of dangerous substances .66 Sampling .67 Conformity control.68 Evaluation of conformity .79 Marking and labelling 79.1 General 79.2 D
16、esignation of admixtures 79.3 Additional Information 8Annex A (informative) Content and release of dangerous substances .9Annex B (normative) Bleed and Volume Change test 10B.1 Principle . 10B.2 Apparatus 10B.3 Procedure 10B.4 Reporting results 10B.4.1 Bleeding . 10B.4.2 Volume change . 11Annex ZA (
17、informative) Provisions for the CE marking of admixtures for concrete under the EU Construction Products Directive . 12ZA.1 Clauses of this European Standard addressing the provisions of the EU Construction Products Directive 12ZA.2 Procedure for attestation of conformity of admixtures for grout for
18、 prestressing tendons 14ZA.2.1 System of attestation of conformity . 14ZA.2.2 EC certification and declaration of conformity 15ZA.3 CE marking and labelling . 16Bibliography . 19DIN EN 934-4:2009-09 EN 934-4:2009 (E) 3 Foreword This document (EN 934-4:2009) has been prepared by Technical Committee C
19、EN/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 November 2009, and conflicting national standards shall be withd
20、rawn at the latest by November 2009. This document supersedes EN 934-4:2001. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s),
21、 see informative Annex ZA, which is an integral part of this document. This standard is a part of the series EN 934 “Admixtures for concrete, mortar and grout“ which additionally comprises the following parts Part 1: Common requirements Part 2: Concrete admixtures Definitions, requirements, conformi
22、ty, marking and labelling Part 3: Admixtures for masonry mortar Definitions, requirements, conformity, marking and labelling Part 5: Admixtures for sprayed concrete Definitions, requirements, conformity, marking and labelling Part 6: Sampling, conformity control and evaluation of conformity This Eur
23、opean Standard is used with the standards of the EN 480 series which comprises test methods for admixtures. The annexes A and ZA are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European St
24、andard: 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. D
25、IN EN 934-4:2009-09 EN 934-4:2009 (E) 4 1 Scope This European Standard defines and specifies requirements and conformity criteria for admixtures for the use in grouts for prestressing tendons according to EN 447. It covers admixtures for use in site1)mixed grout only. Provisions for the use of grout
26、 admixtures are not part of this standard but are covered by EN 447. 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 do
27、cument (including any amendments) applies. EN 196-2, Methods of testing cement Part 2: Chemical analysis of cement EN 196-6, Methods of testing cement Determination of fineness EN 197-1, Cement Part 1: Composition, specifications and conformity criteria for common cements EN 445, Grout for prestress
28、ing tendons Test methods EN 934-1:2008, Admixtures for concrete, mortar and grout Part 1: Common requirements EN 934-6:2001, Admixtures for concrete, mortar and grout Part 6: Sampling, conformity control and evaluation of conformity EN 1008, Mixing water for concrete Specification for sampling, test
29、ing and assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for concrete 3 Terms and definitions For the purposes of this document, the terms and definitions in EN 934-1:2008 and the following apply. 3.1 admixture for grout material
30、which improves the characteristics of grouts to be injected into ducts for prestressing tendons by influencing their properties such as fluidity, expansion, volume change and bleeding, individually or in combination 3.2 expanding grout admixture admixture for use in grout which is intended to ensure
31、 that the initial volume of the liquid grout has not reduced after hardening 3.3 compliance dosage dosage of an admixture, quoted by the manufacturer in % by mass of cement, which will meet the requirements of this standard and which is within the recommended range of dosage 1) For this standard sit
32、e includes precast concrete factories. DIN EN 934-4:2009-09 EN 934-4:2009 (E) 5 3.4 recommended range of dosage dosages between limits, which the manufacturer recommends for the product and are expressed in % by mass of cement, based on experience on site NOTE The use of the recommended dosage does
33、not imply that compliance with this standard will be met over the whole range. Trial tests should be carried out with the materials to be used on site to find the dosage necessary to achieve the required result (see EN 446). 3.5 test mix prescribed mix of cement, water and admixture 4 Composition an
34、d preparation of test mix 4.1 Constituent materials a) Cement type CEM I strength classes 42,5 and 52,5 complying with EN 197-1, C3A content 7 % to 11 % by mass calculated from chemical analysis in accordance with EN 196-2 and a specific surface of 320 m2/kg to 400 m2/kg determined in accordance wit
35、h EN 196-6. b) Water in accordance with EN 1008. c) Admixture for grout under test used at its compliance dosage. 4.2 Water/cement ratio This shall be adjusted to provide the fluidity in 4.3 and shall not exceed 0,42. 4.3 Fluidity The fluidity, measured by cone method in accordance with EN 445, at (
36、20 2) C, immediately after mixing shall be (15 3) s 4.4 Mixing This shall be carried out mechanically, with a high shear mixer, to obtain a homogeneous grout. Any recommendations from the manufacturer of the admixture, regarding the mixing sequence, shall be followed. 5 Requirements 5.1 General Admi
37、xtures for grout shall comply with Table 1 and EN 934-1:2008, Table 1, Line 1 to 8 and 10. NOTE For requirements which lead to the CE-marking, see ZA.1 5.2 Specific Test mixes shall comply with Table 1. DIN EN 934-4:2009-09 EN 934-4:2009 (E) 6 Table 1 Requirements for grout admixtures No Property Te
38、st method Requirements 1 Fluidity 30 min after mixingaEN 445 Cone method 25 s 2 Compressive strengthaEN 445 30 MPa at 28 days 3 Bleeding Annex B 2 % of initial volume at 3 h 4 Range of volume change at 24 h Annex B -1 % S 5 % 0 S 5 %, when testing expanding admixtures, where S is the volume change a
39、These requirements correspond with EN 447. 5.3 Release of dangerous substances For content and release of substances from the hardened grout dangerous to health, hygiene and the environment see Annex A (informative). 6 Sampling Requirements for sampling are given in EN 934-6:2001 7 Conformity contro
40、l Requirements for conformity control are given in EN 934-6:2001. The frequency of testing in connection with factory production control is given in Table 2. DIN EN 934-4:2009-09 EN 934-4:2009 (E) 7 Table 2 Minimum frequency of test for factory production control of admixtures for grout for prestres
41、sing tendons Tests Frequency Homogenity, colour B Relative density (for liquids only) B Conventional dry material content B pH value (for liquids only) B Chloride content (Cl)a4 Compressive strength 1 Fluidity A Bleeding A Volume change A Numbers in this table denote minimum frequency of test per ye
42、ar, spread according to production; if the production is less frequent every batch has to be tested. A: means test for every 500 t with a minimum of 2 times a year B: means test for each batch aTotal chlorine content also has to be tested at this frequency if it is significantly different from the w
43、ater soluble chloride content. NOTE Effective component (infra red analysis) need not be included in the programme of factory production control. They shall be included in initial type testing. 8 Evaluation of conformity Requirements for evaluation of conformity are given in EN 934-6:2001. 9 Marking
44、 and labelling 9.1 General When admixtures for grout are supplied in containers they shall be clearly marked with the relevant information. When the material is supplied into a bulk container at the point of delivery, the same information shall be provided in writing at the time of delivery. NOTE Fo
45、r CE-marking and labelling see ZA.3. 9.2 Designation of admixtures Admixtures for concrete shall be designated by: a) Name of type of admixture in the language of one member country, b) Number of standard: EN 934-4:2009, c) Type of admixture (i.e. admixture for grout or expanding admixture for grout
46、; EN 934-4 EXAMPLE Admixture for grout or expanding admixture for grout; EN 934-4: DIN EN 934-4:2009-09 EN 934-4:2009 (E) 8 9.3 Additional Information a) batch number and production plant; b) summary of storage requirements including any special requirements on storage life which shall be clearly ma
47、rked, e. g.: This admixture shall not be taken to comply with EN 934-4:2009 after “date“; c) instructions for homogenisation, before use, when necessary; d) instructions for use and any necessary safety precautions, e. g. if caustic, toxic or corrosive; e) manufacturers recommended range of dosage.
48、DIN EN 934-4:2009-09 EN 934-4:2009 (E) 9 Annex A (informative) Content and release of dangerous substances In the absence of specific requirements for substances dangerous to health, hygiene and environment in this standard, the requirements of ZA.1 (paragraph “Warning“) and ZA.3 apply. DIN EN 934-4
49、:2009-09 EN 934-4:2009 (E) 10 Annex B (normative) Bleed and Volume Change test B.1 Principle The test measures the bleeding and volume change, as a percentage, of the initial volume of the grout between the start and end of the test. The bleeding is assessed at 3 h and the volume change at 24 h resulting from segregation or expansion of the grout. B.2 Apparatus A transparent cylinder of (50 1) mm internal diameter and approximately 200 mm
