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1、BS EN 12848:2009 ICS 75.140; 91.100.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Bitumen and bituminous binders Determination of mixing stability with cement of bituminous emulsions BS 2000-486:2009 Licensed CopyChinese University of Hong Kong, 13/06/200
2、9 05:09, Uncontrolled Copy, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2009 BSI 2009 ISBN 978 0 580 64096 4 Amendments/corrigenda issued since publication DateComments BS EN 12848:2009 National foreword This British Stan
3、dard is the UK implementation of EN 12848:2009. It supersedes BS EN 12848:2002 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PTI/13, Petroleum testing and terminology. A list of organizations represented on this committee can be obtained on request
4、to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Energy Institute, under the brand of IP, publishes and sells
5、 all Parts of BS 2000, and all BS EN petroleum test methods that would be Part of BS 2000, both in its annual publication “Standard methods for analysis and testing of petroleum and related products and British Standard 2000 Parts” and individually. Further information is available from: Energy Inst
6、itute, 61 New Cavendish Street, London W1G 7AR. Tel: 020 7467 7100. Fax: 020 7255 1472. Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12848 March 2009 ICS 75.140; 91.100.50Supersedes EN
7、 12848:2002 English Version Bitumen and bituminous binders - Determination of mixing stability with cement of bituminous emulsions Bitumes et liants bitumineux - Dtermination de la stabilit des mulsions de bitume en mlange avec du ciment Bitumen und bitumenhaltige Bindemittel - Bestimmung der Mischs
8、tabilitt von Bitumenemulsionen mit Zement This European Standard was approved by CEN on 17 February 2009. 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 alteratio
9、n. 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 European Standard exists in three official versions (English, French, German). A version in any other language made by translat
10、ion 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 national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany,
11、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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Mana
12、gement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12848:2009: E Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848
13、:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 4 5 Reagents and materials 4 6 Apparatus .4 7 Sampling .5 8 Procedure .5 9 Calculation 5 10 Expression of results 6 11 Precision .6 12 Test report 6 Bibliography 7 Licensed CopyChinese Univ
14、ersity of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848:2009 (E) 3 Foreword This document (EN 12848:2009) has been prepared by Technical Committee CEN/TC 336 “Bituminous binders”, the secretariat of which is held by AFNOR. This European Standard shall be given the
15、 status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may b
16、e 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 12848:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impl
17、ement 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
18、 and the United Kingdom. Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848:2009 (E) 4 1 Scope This European Standard specifies a method for the determination of mixing stability of bituminous emulsions with cement. It applies to over
19、stabilized cationic bituminous emulsions and to slow-setting and overstabilized anionic bituminous emulsions. WARNING The use of this standard can involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It i
20、s the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated r
21、eferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 58, Bitumen and bituminous binders - Sampling bituminous binders EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for
22、common cements EN 12594, Bitumen and bituminous binders - Preparation of test samples EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 mixing sta
23、bility with cement mass of coagulated material (bitumen + cement) which is produced when a bituminous emulsion is mixed with cement under the test conditions defined in this method 4 Principle The bituminous emulsion is mixed with cement under specified conditions. The mixture is then poured through
24、 a sieve and the amount of material retained on the sieve is weighed. 5 Reagents and materials Use only reagents of recognised analytical grade and water conforming to grade 3 of EN ISO 3696. For cement, use a Portland cement CEM I, type R, conforming to EN 197-1. 6 Apparatus Usual laboratory appara
25、tus and glassware, together with the following: 6.1 Sieve, stainless steel or brass, with a nominal frame diameter from 75 mm to 200 mm and a mesh size of 2,0 mm. 6.2 Sieve, stainless steel or brass, with a nominal frame diameter from 75 mm to 200 mm and a mesh size of 0,16 mm. Licensed CopyChinese
26、University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848:2009 (E) 5 6.3 Sieve pans, to fit 75 mm to 200 mm diameter sieves. 6.4 Round bottomed dish, glass or stainless steel, 500 ml capacity. 6.5 Graduated cylinder, 250 ml capacity. 6.6 Balance, capable of weig
27、hing 500 g, with an accuracy of 0,1 g. 6.7 Glass stirring rod or steel rod, nominally 5 mm in diameter, with rounded ends. 6.8 Oven, thermostatically controlled to (110 5) C. 6.9 Stop watch with an accuracy of 0,2 s or better over a time interval of 300 s. 7 Sampling The material under test shall be
28、 sampled in accordance with EN 58 and prepared in accordance with EN 12594. 8 Procedure 8.1 General Carry out the procedure under normal laboratory conditions, between 18 C and 28 C. 8.2 Sieving of cement Filter the cement (Clause 5) using the 0.16 mm sieve specified in sub-clause 6.2. Take the ceme
29、nt that passed through the sieve, dry it in the oven (6.8) at (110 5) C. Keep in a dessicator or a water tight container before the test. 8.3 Test Wash the 2 mm mesh sieve (6.1) and pan (6.3) and dry them in the oven (6.8) for 30 min. Cool in a dessiccator and weigh the sieve and pan together (m1).
30、Weigh (50,0 0,1) g of cement, into the round bottomed dish (6.4). Add 100 ml of the bituminous emulsion test sample and stir immediately for 1 min in a circular motion at the rate of one turn per second. Add 150 ml of water and stir for a further 3 min at the same rate. Pour the mixture through the
31、2 mm mesh sieve (6.1), ensuring that all of the mixture is removed from the round bottomed dish by repeatedly washing with water. When all of the mixture has been transferred from the round bottomed dish, rinse the sieve with further water by pouring this from a height of (150 5) mm until the washin
32、gs are clear. Fit the sieve onto the pan and dry them in the oven (6.8) for 1 h. Cool in a dessiccator and reweigh. Repeat this procedure until the mass (m2) is constant (less than 0,1 g difference between weighing). 9 Calculation Calculate the mixing stability with cement, Sc, of the test sample, i
33、n grams, by means of the following equation: SC = m2 - m1 where: m1 is the mass of the sieve and pan, in grams; Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848:2009 (E) 6 m2 is the mass of the sieve and pan and sample after drying,
34、 in grams. 10 Expression of results Express the result, obtained in accordance with Clause 9, in grams, rounded to the nearest 0,1 g. 11 Precision NOTE 1 The precision of the method was evaluated in accordance with EN ISO 4259 1. NOTE 2 The precision data are extracted from NF T 66-024 2. 11.1 Repea
35、tability The difference between two successive test results, obtained by the same operator with the same apparatus under constant operating conditions on identical test material would, in the long run, in the normal and correct operation of the test method, exceed 0,2 g in only one case in twenty. 1
36、1.2 Reproducibility The difference between two single and independent results obtained by different operators working in different laboratories on identical test material would, in the long run, in the normal and correct operation of the test method, exceed 0,4 g in only one case in twenty. 12 Test
37、report The test report shall contain at least the following information: a) type and complete identification of the sample under test; b) reference to this European Standard; c) result of the test (see Clause 10); d) any deviation, by agreement or otherwise, from the procedure specified; e) date of
38、sampling, date of sample preparation and date of the test. Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI BS EN 12848:2009 EN 12848:2009 (E) 7 Bibliography 1 EN ISO 4259, Petroleum products Determination and application of precision data in relation to met
39、hods of test (ISO 4259:2006) 2 NF T 66-024:1984, Emulsions de bitume Essai de stabilit au ciment (Bitumen emulsions Test of stability with cement) 3 ASTM D 6935, Standard test method for determining cement mixing of emulsified asphalt Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, U
40、ncontrolled Copy, (c) BSI Energy Institute Buying Parts of BS 2000 Orders for BS 2000 publications should be addressed to either: Energy Institute Library and Information Service 61 New Cavendish Street London W1G 7AR Tel: +44 (0)20 7467 7100 Fax: +44 (0)20 7255 1472 www.energyinst.org.uk Order stan
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42、o part of this publication may be reproduced in any form without the prior permission in writing of BSI and the Energy Institute. Enquiries about copyright should be made to the Secretary of PTI/13 at the Energy Institute. PTI/13 BS 2000 Series Licensed CopyChinese University of Hong Kong, 13/06/2009 05:09, Uncontrolled Copy, (c) BSI