DIN EN 480-1-2015 Admixtures for concrete mortar and grout - Test methods - Part 1 Reference concrete and reference mortar for testing German version EN 480-1 2014《混凝土 灰浆和薄泥浆用混合物 试.pdf

1、January 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; 91.100.30!%?D#“2283300www.din.deDDIN EN 480-1Admixtures for concrete, mortar and grout Test methods Part 1: Reference concrete and reference mortar for testing;English version EN 480-1:2014,English translation of DIN EN 480-1:2015-01Zusatzmittel fr Beton, Mrtel und Einpressmrtel Prfverfa

3、hren Teil 1: Referenzbeton und Referenzmrtel fr Prfungen;Englische Fassung EN 480-1:2014,Englische bersetzung von DIN EN 480-1:2015-01Adjuvants pour bton, mortier et coulis Mthodes dessais Partie 1: Bton et mortier de rfrence pour essais;Version anglaise EN 480-1:2014,Traduction anglaise de DIN EN 4

4、80-1:2015-01SupersedesDIN EN 480-1:2011-09www.beuth.deDocument comprises 12 pagesIn case of doubt, the German-language original shall be considered authoritative.12.14DIN EN 480-1:2015-01 2 A comma is used as the decimal marker. National foreword This document (EN 480-1:2014) has been prepared by Te

5、chnical 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 Engineering), Working Committee NA 005-07-23 AA Betonzusatzmittel, SpA zu

6、 CEN/TC 104/SC 3. Amendments This standard differs from DIN EN 480-1:2011-09 as follows: a) the cement range has been modified; b) the standard has been editorially revised according to CEN Internal Regulations. Previous editions DIN EN 480-1: 1998-03, 2007-01, 2011-09 EUROPEAN STANDARD NORME EUROPE

7、NNE EUROPISCHE NORM EN 480-1 October 2014 ICS 91.100.10; 91.100.30 Supersedes EN 480-1:2006+A1:2011English Version Admixtures for concrete, mortar and grout - Test methods - Part 1: Reference concrete and reference mortar for testing Adjuvants pour bton, mortier et coulis - Mthodes dessai -Partie 1:

8、 Bton et mortier de rfrence pour essais Zusatzmittel fr Beton, Mrtel und Einpressmrtel - Prfverfahren - Teil 1: Referenzbeton und Referenzmrtel fr Prfungen This European Standard was approved by CEN on 14 September 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which

9、 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 standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This Euro

10、pean 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 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members ar

11、e the national standards bodies of Austria, Belgium, 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, Ro

12、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and

13、by any means reserved worldwide for CEN national Members. Ref. No. EN 480-1:2014 EEN 480-1:2014 (E) 2 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Constituent materials 5 3.1 Cement 5 3.2 Aggregate .6 3.2.1 Aggregate for reference concrete 6 3.2.2 Aggregate for reference mortar 6 3.

14、3 Mixing water .6 4 Reference concrete .6 5 Reference mortar .7 6 Production of reference concrete 7 6.1 Mix proportion 7 6.2 Mixing and testing .7 7 Production of reference mortar 8 7.1 Mix proportions 8 7.2 Mixing and testing .8 8 Test report 9 DIN EN 480-1:2015-01 EN 480-1:2014 (E) 3 Foreword Thi

15、s document (EN 480-1:2014) 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 lates

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

17、tent rights. This document supersedes EN 480-1:2006+A1:2011. The main changes with respect to the previous edition are listed below: a) amendment of the cement range; b) editorial revision according to CEN Internal Regulations. This European Standard is part of the series EN 480 Admixtures for concr

18、ete, mortar and grout Test methods which comprises the following: Part 1: Reference concrete and reference mortar for testing Part 2: Determination of setting time Part 4: Determination of bleeding of concrete Part 5: Determination of capillary absorption Part 6: Infrared analysis Part 8: Determinat

19、ion of the conventional dry material content Part 10: Determination of water soluble chloride content Part 11: Determination of air void characteristics in hardened concrete Part 12: Determination of the alkali content of admixtures Part 13: Reference masonry mortar for testing mortar admixtures Par

20、t 14: Determination of the effect on corrosion susceptibility of reinforcing steel by potentiostatic electro-chemical test Part 15: Reference concrete and method for testing viscosity modifying admixtures This standard is applicable together with the standards of the series EN 934 Admixtures for con

21、crete, mortar and grout. DIN EN 480-1:2015-01 EN 480-1:2014 (E) 4 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, Croatia, Cyprus, Czech Republic, Denmark, Es

22、tonia, 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, Switzerland, Turkey and the United Kingdom. DIN EN 480-1:2015-01

23、EN 480-1:2014 (E) 5 1 Scope This European Standard specifies the constituent materials, the composition and the mixing method to produce reference concrete and reference mortar for testing the efficacy and the compatibility of admixtures in accordance with the series EN 934. 2 Normative references T

24、he following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1

25、, 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 testing cement - Part 6: Determination of fineness EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for common c

26、ements EN 413-2, Masonry cement - Part 2: Test methods EN 934 (all parts), Admixtures for concrete, mortar and grout 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

27、mixing water for concrete EN 12350-2, Testing fresh concrete - Part 2: Slump-test EN 12350-5, Testing fresh concrete - Part 5: Flow table test EN 12350-6, Testing fresh concrete - Part 6: Density EN 12350-7, Testing fresh concrete - Part 7: Air content - Pressure methods EN 12390-1, Testing hardened

28、 concrete - Part 1: Shape, dimensions and other requirements for specimens and moulds EN 12390-2, Testing hardened concrete - Part 2: Making and curing specimens for strength tests EN 12620, Aggregates for concrete 3 Constituent materials 3.1 Cement The reference concrete and mortar shall be made wi

29、th a CEM I cement of strength class 42,5 or 52,5 conforming to EN 197-1. The cement 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. DIN EN 480-1:2015-01 EN

30、480-1:2014 (E) 6 3.2 Aggregate 3.2.1 Aggregate for reference concrete A natural normal weight aggregate conforming to EN 12620 with low water absorption (less than 2 % by mass) shall be used. The size fractions of the aggregate used in the production of reference concretes shall lie within the limit

31、s given in Table 1. Table 1 Aggregate for reference concrete Aperture size (mm) Percentage by mass passing the test sieve a) b)31,5 100 16,0 75 to 95 8,0 45 to 70 4,0 35 to 50 2,0 25 to 40 1,0 20 to 35 0,5 10 to 25 0,25 4 to 12 0,125 1 to 8 a)The range is selected to accommodate both crushed and unc

32、rushed aggregate. b) The variation in the quantity passing each sieve of the chosen grading for both mixes (control and test mix) shall not exceed 2,0 % by mass. 3.2.2 Aggregate for reference mortar Standard sand according to EN 196-1 shall be used as the aggregate for the reference mortar. 3.3 Mixi

33、ng water Water according to EN 1008 shall be used as mixing water. Distilled or de-ionised water may be used in special cases. It is not allowed to use wash water from concrete production. 4 Reference concrete Unless otherwise specified, tests on reference concrete are performed as comparative tests

34、. That is, the performance of admixtures is determined by comparing the reference concrete containing an admixture (test mix) with the reference concrete made without an admixture (control mix) but otherwise with the same aggregate/cement ratio and constituent materials from the same delivery. The r

35、equirements of reference concretes shall be as given in Table 2. The fresh concrete shall be fully compacted. The air content in the control mix shall not exceed 2 % by volume. DIN EN 480-1:2015-01 EN 480-1:2014 (E) 7 Table 2 Requirements for reference concrete a)Reference concrete Cement content c)

36、kg/m3Consistence at required test temperature b), d)Slump (mm) Flow (mm) I 350 5 70 10 400 20 II 300 5 120 20 450 20 III 350 5 50 10 350 10 IV 350 5 30 10 350 20 a)When testing at equal w/c ratio the requirements for consistence shall only apply to the control mix. b) These consistence tests are alt

37、ernatives and have to be chosen before starting the test. Slump shall be determined in accordance with EN 12350-2 or flow in accordance with EN 12350-5 respectively. c) Control mix only: The resulting cement content of the test mix may change as a result of volume change to concrete caused by water

38、reducing or air entraining effects of the admixture under test. d) For high range water reducing/superplasticising admixture the consistence of the test mix shall be not less the consistence of the control mix with no upper limit on consistence of the test mix. 5 Reference mortar Unless otherwise sp

39、ecified, 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 of the reference mortar without an admixture (control mix). Standard mortar conforming to EN 196-1 shall be used a

40、s the reference mortar. 6 Production of reference concrete 6.1 Mix proportion The cement content shall be in accordance with Table 2. Aggregate shall be used in an oven dry condition ( 105 C) to remove doubts on moisture content variation. If the aggregate is not oven dry, its moisture content shall

41、 be determined and the specific gravity shall be corrected accordingly. In case of dispute, oven dry aggregate shall be used. The test mix shall have the same aggregate:cement ratio as the control mix but the water content shall be adjusted to give a consistence within the limits given in Table 2 fo

42、r the control mix. The water content of the mix shall be calculated from the moisture content of the aggregate, the mixing water and the water content of the admixture. In the case of the plasticised or superplasticised flowing concrete mix and when testing water resisting admixtures at equal w/c ra

43、tio no water reduction shall be made. 6.2 Mixing and testing Prior to mixing, each of the constituents shall be conditioned to a temperature of (20 2) C or when required by the test method, to (5 1) C. The following mixing technique shall be adopted to ensure repeatability of results, and eliminate

44、initial absorption effects on consistence: Use a forced action pan mixer to its minimum of 50 % capacity (maximum 90 % of capacity). Wipe the inside with a damp cloth if dry. DIN EN 480-1:2015-01 EN 480-1:2014 (E) 8 Add all of the aggregate to the pan mixer with half the mixing water. Mix for two mi

45、nutes, then stand for two minutes. Cover the pan mixer during the standing period to minimise evaporation effects. Re-start the mixer for thirty seconds after or whilst adding the cement. Add the remaining water (plus admixture in the test mix) over the next thirty seconds. Mix for two minutes. In t

46、he case of powder admixture, the admixture shall be added to the dry constituents of the concrete unless otherwise specified by the manufacturer. Determine the consistence within five minutes from completion of mixing. Immediately after mixing and initial testing, store the specimens at the required

47、 test temperature, (20 2) C or (5 1) C. If the consistence is outside the limit in Table 2, (except test mixes at equal w/c ratio and in accordance with Table 2 footnote d) discard the mix and repeat at a revised water content. Determine the density according to EN 12350-6 and check whether the ceme

48、nt content conforms to the values given in Table 2. If the cement content is outside the limits discard the mix and repeat with a revised content of cement, aggregate and water. Measure air content according to EN 12350-7 and make specimens within 30 min from completion of mixing. Unless otherwise s

49、pecified in the standards of the series EN 934, three cubes or cylinders shall be taken for compressive strength testing at each test age and results averaged for the assessment of compliance. Prepare and cure the specimens in accordance with EN 12390-2 using moulds conforming to EN 12390-1. If one of the specimens varies from the average for the set by more than 10 %, it shall be discarded and the average recalculated on the remaining two specimens. 7 Production of reference mor