1、December 2010 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).IC
2、S 91.100.30!$ld:“1736523www.din.deDDIN EN 12350-9Testing fresh concrete Part 9: Self-compacting concrete V-funnel testEnglish translation of DIN EN 12350-9:2010-12Prfung von Frischbeton Teil 9: Selbstverdichtender Beton AuslauftrichterversuchEnglische bersetzung von DIN EN 12350-9:2010-12Essai pour
3、bton frais Partie 9: Bton auto-plaant Essai dcoulement lentonnoir en VTraduction anglaise de DIN EN 12350-9:2010-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1012.10 DIN EN 12350-9:2010-12 A comma is used as the decimal marker
4、. National foreword This standard 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 Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Co
5、mmittee NA 005-07-05 AA Prfverfahren fr Beton. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 5725-2 DIN ISO 5725-2 National Annex NA (informative) Bibliography DIN ISO 5725-2, Accuracy (trueness and precision) of measurement methods and
6、results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12350-9 July 2010 ICS 91.100.30 English Version Testing fresh concrete - Part 9: Self-compacting concrete - V-funnel test Es
7、sai pour bton frais - Partie 9: Bton auto-plaant - Essai dcoulement lentonnoir en V Prfung von Frischbeton - Teil 9: Selbstverdichtender Beton - Auslauftrichterversuch This European Standard was approved by CEN on 20 June 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulation
8、s 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 standards may be obtained on application to the CEN Management Centre or to any CEN member. This Europ
9、ean 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 Management Centre has the same status as the official versions. CEN members are the nat
10、ional standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, Switze
11、rland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. E
12、N 12350-9:2010: EEN 12350-9:2010 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Principle 54 Apparatus .55 Test sample 66 Procedure .67 Test report 68 Repeatability and reproducibility .7Bibliography 8DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 3 Foreword This document (EN 12350-9:2
13、010) 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 January 2011, and
14、 conflicting national standards shall be withdrawn at the latest by January 2011. 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 patent rights. This
15、 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 EU Directive(s). This standard is based on the results from the EU-project “Testing-SCC“ under the 5thFrame Programme (GRD2-2000-30024/G
16、6RD-CT-2001-00580). Owing to its significant advantages in the improvement of construction quality and working environment, self-compacting concrete (SCC) has been widely accepted by the construction owners. The use of SCC in practical concrete construction is steadily increasing. Since SCC has to g
17、ive satisfactory in-situ properties (perfect filling of the mould and embedment of the reinforcement, homogeneity and full compaction) without vibration, the proper methods for testing the fresh SCC are very important. These should address three key properties: filling ability, passing ability and r
18、esistance to segregation. It is desirable, especially in the case of new constituents or new concrete compositions, to test the consistence of fresh SCC before casting in place. A number of test methods including this test are available for testing fresh SCC. Most of the commonly used test methods w
19、ere evaluated in the recently closed EU-project “Testing-SCC“ under the 5thFrame Programme (GRD2-2000-30024/G6RD-CT-2001-00580). According to the results from this EU project, it seems no single test method can completely cover all the three key properties. Nevertheless any test method should at lea
20、st be correlated to the practical situation and give consistent results in order to provide reliable data for judgment of concrete workability. This standard is one of a series concerned with testing fresh concrete. EN 12350, Testing fresh concrete, consists of the following parts: Part 1: Sampling
21、Part 2: Slump-test Part 3: Vebe test Part 4: Degree of compactability Part 5: Flow table test Part 6: Density Part 7: Air content Pressure methods Part 8: Self-compacting concrete Slump-flow test DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 4 Part 9: Self-compacting concrete V-funnel test Part 10: Sel
22、f-compacting concrete L box test Part 11: Self-compacting concrete Sieve segregation test Part 12: Self-compacting concrete J-ring test CAUTION When cement is mixed with water, alkali is released. Take precautions to avoid dry cement entering the eyes, mouth and nose whilst mixing concrete. Prevent
23、skin contact with wet cement or concrete by wearing suitable protective clothing. If cement or concrete enters the eye, immediately wash it out thoroughly with clean water and seek medical treatment without delay. Wash wet concrete off the skin immediately. According to the CEN/CENELEC Internal Regu
24、lations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Ma
25、lta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 5 1 Scope This European Standard specifies the procedure for determining the V-funnel flow time for self-compacting concrete. The tes
26、t is not suitable when the maximum size of the aggregate exceeds 22,4 mm. 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 referenc
27、ed document (including any amendments) applies. EN 12350-1, Testing fresh concrete Part 1: Sampling 3 Principle The V-funnel test is used to assess the viscosity and filling ability of self-compacting concrete. A V shaped funnel is filled with fresh concrete and the time taken for the concrete to fl
28、ow out of the funnel is measured and recorded as the V-funnel flow time. 4 Apparatus 4.1 V-funnel, made to the internal dimensions and tolerances in Figure 1, fitted with a quick release, watertight hinged or sliding gate at its base and supported by a frame so that the top of the funnel is horizont
29、al with sufficient clearance beneath the gate to place the container underneath. The V-funnel shall be made from metal which shall be reference material; the surfaces shall be smooth, and not readily attacked by cement paste or be liable to rusting. If the funnel is made from other materials, in-use
30、 performance test data shall be available which demonstrates long-term equivalence with metal. 4.2 Container, to hold the test sample and having a volume not less than 12 l. 4.3 Stop watch, capable of measuring to 0,1 s. 4.4 Straight edge, for striking off concrete level with the top of the funnel.
31、DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 6 Dimensions in millimetres Key 1 Hinged or sliding gate Figure 1 V-funnel 5 Test sample A sample of at least 12 l shall be obtained in accordance with EN 12350-1. 6 Procedure Clean the funnel and bottom gate, then dampen all the inside surface including th
32、e gate. Close the gate and pour the sample of concrete into the funnel in one operation, without any agitation or mechanical compaction, then strike off the top with the straight edge so that the concrete is level with the top of the funnel. Place the container under the funnel in order to collect t
33、he concrete. After a delay of (10 2) s from filling the funnel, open the gate quickly and measure the time tv, to 0,1 s, from opening the gate to when it is possible to see vertically through the funnel into the container below for the first time. The time tv is the V-funnel flow time. The flow of c
34、oncrete from the funnel shall be continuous. If a blockage occurs the test shall be repeated. If a second blockage occurs the concrete lacks the necessary viscosity and filling ability of self-compacting concrete. Report if a blockage has occurred. 7 Test report The test report shall include: a) ide
35、ntification of the test sample; b) location where the test was performed; c) date and time of test; DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 7 d) V-funnel flow time, tv, to the nearest 0,5 s; e) any deviation from the standard test method; f) declaration by the person technically responsible for t
36、he test that it was carried out in accordance with this standard, except as noted in item e). The report may include: g) temperature of the concrete at the time of test; h) age of concrete at time of test (if known). 8 Repeatability and reproducibility The repeatability r and reproducibility R have
37、been determined by a programme including ten laboratories, 20 operators and two replicates, and interpreted in accordance with ISO 5725-2. The resulting values for r and R are given in Table 1. Table 1 Repeatability and reproducibility for typical values of V-funnel flow time V-funnel flow time tvin
38、 seconds 3,0 5,0 8,0 12,0 15,0 Repeatability r in seconds 0,4 1,1 2,1 3,4 4,4 Reproducibility R in seconds 0,6 1,6 3,1 5,1 6,6 DIN EN 12350-9:2010-12 EN 12350-9:2010 (E) 8 Bibliography 1 ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method DIN EN 12350-9:2010-12
