DIN EN 480-13-2015 Admixtures for concrete mortar and grout - Test methods - Part 13 Reference masonry mortar for testing mortar admixtures German version EN 480-13 2015《混凝土 灰浆和薄泥浆.pdf

1、August 2015 Translation by DIN-Sprachendienst.English price group 7No part of this translation 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

2、91.100.10!%E7“2342920www.din.deDDIN EN 480-13Admixtures for concrete, mortar and grout Test methods Part 13: Reference masonry mortar for testing mortar admixtures;English version EN 480-13:2015,English translation of DIN EN 480-13:2015-08Zusatzmittel fr Beton, Mrtel und Einpressmrtel Prfverfahren T

3、eil 13: Referenz-Baumrtel fr die Prfung von Zusatzmitteln fr Mauerwerksmrtel;Englische Fassung EN 480-13:2015,Englische bersetzung von DIN EN 480-13:2015-08Adjuvants pour bton, mortier et coulis Mthodes dessai Partie 13: Mortier maonner de rfrence pour les essais mens sur les adjuvants demortier;Ver

4、sion anglaise EN 480-13:2015,Traduction anglaise de DIN EN 480-13:2015-08SupersedesDIN EN 480-13:2011-09www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.07.15DIN EN 480-13:2015-08 2 A comma is used as the decimal marker. National

5、foreword This document (EN 480-13:2015) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineerin

6、g), Working Committee NA 005-07-23 AA Betonzusatzmittel (SpA CEN/TC 104/SC 3). Amendments This standard differs from DIN EN 480-13:2011-09 as follows: a) Subclause 3.1 “Cement” has been updated with regard to requirements for the specific surface of cement used; b) the standard has been editorially

7、revised. Previous editions DIN EN 480-13: 2002-12, 2010-01, 2011-09 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 480-13 June 2015 ICS 91.100.10 Supersedes EN 480-13:2009+A1:2011English Version Admixtures for concrete, mortar and grout - Test methods - Part 13: Reference masonry mortar for te

8、sting mortar admixtures Adjuvants pour bton, mortier et coulis - Mthodes dessai -Partie 13: Mortier maonner de rfrence pour les essais mens sur les adjuvants de mortier Zusatzmittel fr Beton, Mrtel und Einpressmrtel - Prfverfahren - Teil 13: Referenz-Baumrtel fr die Prfung von Zusatzmitteln fr Mauer

9、werksmrtel This European Standard was approved by CEN on 10 April 2015. 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 bibliograp

10、hical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 responsibili

11、ty of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic o

12、f Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATI

13、ON EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 480-13:2015 EEN 480-13:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normativ

14、e references 4 3 Constituent materials 4 3.1 Cement 4 3.2 Sand 4 3.3 Mixing water .5 4 Reference masonry mortar .5 5 Production of reference mortar with standard consistence .5 5.1 Mix proportions 5 5.2 Mixing procedure .6 5.3 Mortar for test after standing 6 5.4 Mortar for test after extended mixin

15、g 6 6 Calculation of water reduction (air entraining/plasticizing admixtures) 6 7 Test report 7 DIN EN 480-13:2015-08 EN 480-13:2015 (E) 3 Foreword This document (EN 480-13:2015) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, the secretariat of which is held by

16、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 December 2015, and conflicting national standards shall be withdrawn at the latest by December 2015. Attention is drawn to the possibility that

17、 some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 480-13:2009+A1:2011. This standard differs from EN 480-13:2009+A1:2011 as follows: a) Subclause 3.1

18、has been updated with regard to requirements for the specific surface of cement used. b) It has been revised editorially. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium

19、, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerla

20、nd, Turkey and the United Kingdom. DIN EN 480-13:2015-08 EN 480-13:2015 (E) 4 1 Scope This European Standard specifies the constituent materials, the composition and the mixing procedure to produce a reference masonry mortar with a prescribed consistence for testing mortar admixtures as defined in E

21、N 934-3. It also describes the determination of the water reduction of the test mix compared to the control mix. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the

22、edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement - Part 1: Determination of strength EN 196-2, Method of testing cement - Part 2: Chemical analysis of cement EN 196-6, Methods of testi

23、ng cement - Part 6: Determination of fineness EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for common cements EN 934-3, Admixtures for concrete, mortar and grout Part 3: Admixtures for masonry mortar Definitions, requirements, conformity, marking and labelling EN 10

24、08, 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 concrete EN 1015-4, Methods of test for mortar for masonry - Part 4: Determination of consistence of fres

25、h mortar (by plunger penetration) EN 1015-7, Methods of test for mortar for masonry - Part 7: Determination of air content of fresh mortar 3 Constituent materials 3.1 Cement The reference masonry mortar shall be made with CEM I cement of strength class 42,5 or 52,5, conforming to EN 197-1. The cemen

26、t used shall have a C3A content of 7 % to 11 % by mass calculated from chemical analysis according to EN 196-2 and a specific surface of (3 200 to 4 600) cm2/g determined according to EN 196-6. 3.2 Sand A natural sand of normal density (relative density 2,5 2,8) shall be used. The size fractions of

27、the sand shall comply with Table 1. The sand shall be used in an oven dry condition. DIN EN 480-13:2015-08 EN 480-13:2015 (E) 5 Table 1 Sand for reference masonry mortar Aperture size (mm) Percentage by mass passing the test sieve 4,0 100 2,0 90 100 1,0 60 90 0,5 40 75 0,25 25 50 0,125 10 30 0,063 0

28、 10 3.3 Mixing water Water according to EN 1008 shall be used as mixing water.1)4 Reference masonry mortar Where specified, tests on reference mortar are performed as comparative tests. That is comparing the performance of the reference mortar containing an admixture (test mix) with the performance

29、of the reference mortar without an admixture (control mix). The air content of the control mix shall not exceed 5 % by volume when determined in accordance with EN 1015-7, method A. 5 Production of reference mortar with standard consistence 5.1 Mix proportions The control and test mixes shall be in

30、accordance with Table 2. Table 2 Mix details Control mix Test mix Sand 3 440 g 3 440 g Cement 640 g 640 g Admixture Nil Compliance Dose Water As required As required Consistence measured according to EN 10154 (40 5) mm Within 3 mm of consistence of control mix Record to the nearest 1 g the total qua

31、ntity of water required (including any contributed by the admixture). For test mix mortars, the quantity of admixture added shall be sufficient to produce the required air content and retardation time if appropriate. The dose of admixture shall be recorded. 1) Distilled or deionised water can be use

32、d for special tests. DIN EN 480-13:2015-08 EN 480-13:2015 (E) 6 5.2 Mixing procedure Prior to mixing, each of the constituents shall be conditioned to a temperature of (20 2) C. Place all the sand and then the cement in the mixing bowl of a mixer complying with EN 196-1 and mix for 30 s at low speed

33、. Continue mixing and add half of the mixing water during the next 30 s and mix for a further 60 s. During a further 30 s of mixing, add the third quarter of the water and the admixture2). During a further 30 s of mixing, add the final quarter of the mixing water. If necessary, the quantity of water

34、 shall be adjusted to obtain the required consistence. Continue mixing at low speed for 60 s after all the water has been added. Stop the mixer for 60 s and during this time remove any unmixed material from the sides and bottom of the bowl using the mixer paddle. Restart the mixer at high speed and

35、mix for 60 s. Total mixing process time shall be 6 min. Immediately after completion of mixing, the consistence shall be determined in accordance with EN 1015-4 and the air content in accordance with EN 1015-7, method A. If the required consistence and air content are not achieved, the mix shall be

36、discarded. A new test mix shall be prepared with the water content adjusted. 5.3 Mortar for test after standing Prepare a test mix as described in 5.1 and 5.2. Cover the mixing bowl to prevent loss of water by evaporation and allow to stand for the period of time prescribed in EN 934-3. After the re

37、quired standing period from completion of mixing, remix the mortar in the bowl for 10 s using a palette knife. 5.4 Mortar for test after extended mixing Prepare a test mix as described in 5.1 and 5.2. Then continue mixing at low speed for a further 15 min. 6 Calculation of water reduction (air entra

38、ining/plasticizing admixtures) Calculate the percentage water reduction, W, resulting from inclusion of the admixture, from the following formula: ( )100=CTCW where C is the water requirement of the control mix in g; T is the water requirement of the test mix in g. The water reduction shall be repor

39、ted to the nearest 1 %. 2) If recommended by the manufacturer, admixtures can be added at a different time in the mixing sequence. DIN EN 480-13:2015-08 EN 480-13:2015 (E) 7 7 Test report The test report shall include the following information for control and test mixes: Cement: Factory where produced; Type; C3A content; Specific surface area; Sand: Source; Type; Grading; Consistence; Air content; Water content of each mix; Water reduction of test mix (for air entraining/plasticizing admixtures); Admixture name, batch/reference number and dose in g. DIN EN 480-13:2015-08