1、BS EN 12848:2009ICS 75.140; 91.100.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDBitumen andbituminous binders Determination ofmixing stability withcement of bituminousemulsionsBS 2000-486:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009
2、 02:32, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 April2009 BSI 2009ISBN 978 0 580 64096 4Amendments/corrigenda issued since publicationDate CommentsBS EN 12848:2009National forewordThis British Standard is the
3、UK implementation of EN 12848:2009. Itsupersedes BS EN 12848:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PTI/13, Petroleum testing and terminology.A list of organizations represented on this committee can be obtained onrequest to its secretary.
4、This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Energy Institute, under the brand of IP, publishes and sells all Parts of BS 2000,
5、 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 Institute, 61 New Cavendish
6、 Street, London W1G 7AR. Tel: 020 7467 7100. Fax: 020 7255 1472.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12848March 2009ICS 75.140; 91.100.50 Supersedes EN 12848:2002 English V
7、ersionBitumen and bituminous binders - Determination of mixingstability with cement of bituminous emulsionsBitumes et liants bitumineux - Dtermination de la stabilitdes mulsions de bitume en mlange avec du cimentBitumen und bitumenhaltige Bindemittel - Bestimmung derMischstabilitt von Bitumenemulsio
8、nen mit ZementThis 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and biblio
9、graphical 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 made by translationunder the responsibility of a
10、 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, Germany, Greece, Hungary, Iceland, Ireland, I
11、taly, 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 NORMUNGManagement Centre: Avenue Marnix 17, B-1000 B
12、russels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12848:2009: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 12848:2009 (E) 2 Contents Page Foreword 3
13、 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 Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/
14、2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 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 status of a national standar
15、d, 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 be the subject of patent right
16、s. 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 implement this European Standard:
17、 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 the United Kingdom. Lice
18、nsed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 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 overstabilized cationic bi
19、tuminous 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 is the responsibility o
20、f 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 references, only the ed
21、ition 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 common cements EN 1259
22、4, 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 stability with cement mas
23、s 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 a sieve and the amoun
24、t 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 apparatus and glassware, tog
25、ether 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 Copy: Wang Bin, ISO/EXCHANGE CHINA
26、 STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 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 weighing 500 g, wit
27、h 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 sampled in acc
28、ordance 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 cement that passed
29、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). Weigh (50,0 0,1
30、) 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 2 mm mesh sieve
31、 (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 washings are clear. F
32、it 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, in grams, by mea
33、ns of the following equation: SC= m2- m1where: m1is the mass of the sieve and pan, in grams; Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 12848:2009 (E) 6 m2is the mass of the sieve and pan and sample after drying, in grams. 10
34、 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 Repeatability The
35、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. 11.2 Reproduci
36、bility 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 report The te
37、st 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 sampling, dat
38、e of sample preparation and date of the test. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSIBS EN 12848:2009EN 12848:2009 (E) 7 Bibliography 1 EN ISO 4259, Petroleum products Determination and application of precision data in relation to methods o
39、f 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 Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32
40、, Uncontrolled Copy, (c) BSIEnergy InstituteBuying Parts of BS 2000Orders for BS 2000 publications should be addressed to either:Energy Institute Library and Information Service61 New Cavendish StreetLondonW1G 7ARTel: +44 (0)20 7467 7100Fax: +44 (0)20 7255 1472www.energyinst.org.ukOrder standards se
41、curely via:www.energyinstpubs.org.ukor:British Standards Institution Customer Services389 Chiswick High RoadLondonW4 4ALTel: +44 (0)20 8996 9001Fax: +44 (0)20 8996 7001www.bsi-Order hard copy standards securely via:www.bsi- exists in all BS 2000 publications. No part of this publication may be repro
42、duced 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/13BS 2000 SeriesLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2009 02:32, Uncontrolled Copy, (c) BSI
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1