1、July 2009DEUTSCHE NORM English price group 6No part of this standard 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 75.140; 91.100.50!$XO“1534
2、404www.din.deDDIN EN 12848Bitumen and bituminous binders Determination of mixing stability with cement of bituminous emulsionsEnglish version of DIN EN 12848:2009-07Bitumen und bitumenhaltige Bindemittel Bestimmung der Mischstabilitt von Bitumenemulsionen mit ZementEnglische Fassung DIN EN 12848:200
3、9-07SupersedesDIN EN 12848:2002-08www.beuth.deDocument comprises 9 pagesDIN EN 12848:2009-07 2 National foreword This standard has been prepared by Technical Committee CEN/TC 336 “Bituminous binders” (Secretariat: AFNOR, France). The responsible German bodies involved in its preparation were the Nor
4、menausschuss Materialprfung (Materials Testing Standards Committee) and the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Joint Technical Committee NA 062-03-32 GA Bitumen; Prfverfahren und Anforderungen fr die Bindemittel. Amendments This standard differs from DIN E
5、N 12848:2002-08 as follows: a) In the German version the term Zementvertrglichkeit (mixing stability with cement) has been changed to Mischstabilitt mit Zement (see 3.1). b) The procedure of sieving the cement (see 8.2) has been described in more detail. c) The standard has been editorially revised.
6、 Previous editions DIN EN 12848: 2002-08 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12848March 2009ICS 75.140; 91.100.50 Supersedes EN 12848:2002 English VersionBitumen and bituminous binders - Determination of mixingstability with cement of bituminous emulsionsBitumes et liants bitumineux -
7、Dtermination de la stabilitdes mulsions de bitume en mlange avec du cimentBitumen und bitumenhaltige Bindemittel - Bestimmung derMischstabilitt von Bitumenemulsionen mit ZementThis European Standard was approved by CEN on 17 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal
8、 Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.Th
9、is European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are th
10、e national standards bodies of 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
11、and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12848:2009
12、: EEN 12848:2009 (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 DIN EN 12848:2
13、009-07 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 status of a national standard, either by publication of an identical text o
14、r 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 rights. CEN and/or CENELEC shall not be held respons
15、ible 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: Austria, Belgium, Bulgaria, Cyprus, Czech Repu
16、blic, 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. DIN EN 12848:2009-07 EN 12848:2009 (E) 4 1 Scope Th
17、is European Standard specifies a method for the determination of mixing stability of bituminous emulsions with cement. It applies to overstabilized cationic bituminous emulsions and to slow-setting and overstabilized anionic bituminous emulsions. WARNING The use of this standard can involve hazardou
18、s materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations pr
19、ior to use. 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 referenced document (including any amendments) applies. EN 58, Bitumen
20、 and bituminous binders - Sampling bituminous binders EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for common cements EN 12594, Bitumen and bituminous binders - Preparation of test samples EN ISO 3696, Water for analytical laboratory use - Specification and test met
21、hods (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 mass of coagulated material (bitumen + cement) which is produced when a bituminous emulsion is mixed with cement under the test conditions defin
22、ed 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 amount of material retained on the sieve is weighed. 5 Reagents and materials Use only reagents of recognised analytical grade and water conformin
23、g 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, 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.
24、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. DIN EN 12848:2009-07 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 cylin
25、der, 250 ml capacity. 6.6 Balance, capable of weighing 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
26、300 s. 7 Sampling The material under test shall be 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 m
27、m sieve specified in sub-clause 6.2. Take the cement 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 dessi
28、ccator and weigh the sieve and pan together (m1). 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 m
29、in at the same rate. Pour the mixture through the 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
30、 this from a height of (150 5) mm until the washings 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 mixin
31、g stability with cement, Sc, of the test sample, in grams, by means of the following equation: SC= m2- m1where: m1is the mass of the sieve and pan, in grams; DIN EN 12848:2009-07 EN 12848:2009 (E) 6 m2is the mass of the sieve and pan and sample after drying, in grams. 10 Expression of results Expres
32、s 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 difference between two succes
33、sive 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 Reproducibility The difference between
34、 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 test report shall contain at le
35、ast 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, date of sample preparation and d
36、ate of the test. DIN EN 12848:2009-07 EN 12848:2009 (E) 7 Bibliography 1 EN ISO 4259, Petroleum products Determination and application of precision data in relation to methods 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 DIN EN 12848:2009-07
