1、January 2015 Translation by DIN-Sprachendienst.English price group 12No 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 75.140; 91.100.50!%?DF“2283335www.din.deDDIN EN 12596Bitumen and bituminous binders Determination of dynamic viscosity by vacuum capillary;English version EN 12596:2014,English translation of DIN EN 12596:2015-01Bitumen und bitumenhaltige Bindemittel Bestimmung der dynamischen Viskositt mit Vakuum
3、-Kapillaren;Englische Fassung EN 12596:2014,Englische bersetzung von DIN EN 12596:2015-01Bitumes et liants bitumineux Dtermination de la viscosit dynamique par viscosimtre capillaire sous vide;Version anglaise EN 12596:2014,Traduction anglaise de DIN EN 12596:2015-01SupersedesDIN EN 12596:2007-06www
4、.beuth.deDocument comprises 21 pagesIn case of doubt, the German-language original shall be considered authoritative.12.14DIN EN 12596:2015-01 2 A comma is used as the decimal marker. National foreword This document (EN 12596:2014) has been prepared by Technical Committee CEN/TC 336 “Bituminous bind
5、ers” (Secretariat: AFNOR, France). The responsible German bodies involved in its preparation were the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing) and the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Joint Committee NA 062-0
6、3-32 GA Bitumen; Prfverfahren und Anforderungen fr die Bindemittel. Where the International Standards referred to are not also DIN EN ISO Standards, there are no national standards available, except for the following: EN ISO 3696 DIN ISO 3696 Amendments This standard differs from DIN EN 12596:2007-0
7、6 as follows: a) requirements for the temperature measuring device have been revised; b) the standard has been editorially revised. Previous editions DIN EN 12596: 2000-04, 2007-06 National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and test m
8、ethods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12596 November 2014 ICS 75.140; 91.100.50 Supersedes EN 12596:2007English Version Bitumen and bituminous binders - Determination of dynamic viscosity by vacuum capillary Bitumes et liants bitumineux - Dtermination de la viscosit dynamique p
9、ar viscosimtre capillaire sous vide Bitumen und bitumenhaltige Bindemittel - Bestimmung der dynamischen Viskositt mit Vakuum-Kapillaren This European Standard was approved by CEN on 16 August 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio
10、ns 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 European Standard exists in
11、 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 are the national standard
12、s 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, Romania, Slovakia, Sloven
13、ia, 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 by any means reserved w
14、orldwide for CEN national Members. Ref. No. EN 12596:2014 EEN 12596:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 5 5 Apparatus .5 6 Preparation of test samples 7 7 Procedure .7 8 Calculation 8 9 Expression of results 8 10 Precision .8
15、11 Test report 9 Annex A (normative) Specifications of viscometers 10 Annex B (informative) Calibration of viscometers 16 Annex C (informative) Characteristics of thermometer 18 Bibliography . 19 DIN EN 12596:2015-01 EN 12596:2014 (E) 3 Foreword This document (EN 12596:2014) has been prepared by Tec
16、hnical 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 or by endorsement, at the latest by May 2015 and conflicting national standards shall be wi
17、thdrawn at the latest by May 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 patent rights. This document supersedes EN 12596:2007. This docume
18、nt has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. In comparison with EN 12596:2007, the following significant changes have been made: the possibility to measure at other temperatures than 60 C has been added to the Scope; changed/ad
19、ded wording of the Warning in the Scope; the reference to mercury thermometer has been deleted (see subclause 5.2) and Annex C is informative; subclause 7.2: an upper time limit for applicable viscometer has been added. According to the CEN-CENELEC Internal Regulations, the national standards organi
20、zations of the following countries are bound to implement this European Standard: 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, M
21、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12596:2015-01 EN 12596:2014 (E) 4 1 Scope This European Standard specifies a method for the determination of the dynamic viscosity of bituminous binders by mean
22、s of a vacuum capillary viscometer at 60 C in a range between 0,003 6 Pas and 580 000 Pas. Other temperatures are possible if calibration constants are known. Bituminous emulsions are not within the scope of this method. NOTE 1 Emulsions containing bituminous binders are not considered to be covered
23、 by this method. This method can be used for recovered and/or stabilized binders obtained from emulsions. NOTE 2 The viscosity behaviour of some polymer modified bitumens (PMB) is not demonstrated in a vacuum capillary viscometer. Other methods are more relevant. WARNING Use of this European Standar
24、d can involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this European Standard to identify the hazards and assess the risks involved in performing this
25、test method and to implement sufficient control measures to protect individual operators (and the environment). This includes appropriate safety and health practices and determination of the applicability of regulatory limitations prior to use. 2 Normative references The following documents, in whol
26、e 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 58, Bitumen and bituminous binders -
27、 Sampling bituminous binders EN 12594, Bitumen and bituminous binders - Preparation of test samples EN ISO 3696:1995, 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 ap
28、ply. 3.1 dynamic viscosity ratio between the applied shear stress and the velocity gradient Note 1 to entry: Dynamic viscosity is a measure of the resistance to the flow of a liquid and is commonly called the viscosity of the liquid. For the purposes of this European Standard, the word viscosity mea
29、ns the dynamic viscosity of a liquid. Note 2 to entry: The SI unit of dynamic viscosity is Pa.s. 3.2 Newtonian liquid liquid with a viscosity that is independent of the rate of shear Note 1 to entry: The constant ratio of the shear stress to the velocity gradient is the dynamic viscosity of the liqu
30、id. If this ratio is not constant, the liquid is non-Newtonian. DIN EN 12596:2015-01 EN 12596:2014 (E) 5 3.3 density mass of a liquid divided by its volume Note 1 to entry: When reporting density, the unit of density used, together with the temperature, is stated explicitly, for example kilogram per
31、 cubic metre. Note 2 to entry: The SI unit of density is kg/m3. 3.4 kinematic viscosity ratio between the dynamic viscosity and the density of a liquid at the temperature of viscosity measured Note 1 to entry: Kinematic viscosity is a measure of the resistance to flow of a liquid under gravity. Note
32、 2 to entry: The Sl unit of kinematic viscosity is m2/s; for practical use, a sub-multiple (mm2/s) is more convenient. 4 Principle To determine the time for a fixed volume of the liquid to be drawn up through a capillary tube by means of a vacuum, under closely controlled conditions of vacuum and te
33、mperature. The viscosity is calculated by multiplying the flow time in s by the viscometer calibration factor. 5 Apparatus 5.1 Viscometer, capillary-type and made of borosilicate glass as described in 5.1.2 to 5.1.4. 5.1.1 General Calibrated viscometers are available from commercial suppliers. Detai
34、ls regarding the calibration of viscometers are given in Annex B. 5.1.2 Cannon-Manning vacuum capillary viscometer (CMVV) The CMVV is available in eleven sizes (see Table A.1), covering a range between 0,003 6 Pas to 8 000 Pas. Details of the design and construction of CMVV are shown in Figure A.1.
35、The size numbers, approximate calibration factors, K, and viscosity ranges for the series of CMVV are given in Table A.1. For all viscometer sizes, the volume of measuring bulb C is approximately three times that of bulb B. Bulb B, bulb C and bulb D are defined by timing marks F, G and H. 5.1.3 Asph
36、alt Institute vacuum capillary viscometer (AIVV) The AIVV is available in seven sizes (see Table A.2) from a range between 4,2 Pas to 580 000 Pas. Sizes 50 to 200 are best suited to viscosity measurements of bituminous binders at 60 C. Details of design and construction of the AIVV are shown in Figu
37、re A.2. The size numbers, approximate capillary radii, approximate calibration factors, K, and viscosity range for the series of AIVV are given in Table A.2. This viscometer has measuring bulb, B, bulb C and bulb D, located on the viscometer arm, M, which is a precision bore glass capillary. The mea
38、suring bulbs are 20 mm long capillary segments defined by timing marks F, G, H and I. DIN EN 12596:2015-01 EN 12596:2014 (E) 6 5.1.4 Modified Koppers vacuum capillary viscometer (MKVV) The MKVV is available in five sizes (see Table A.3) covering a range between 4,2 Pas to 20 000 Pas. Sizes 50 to 200
39、 are best suited to viscosity measurements of bituminous binders at 60 C. Details of design and construction of the MKVV are shown in Figure A.3. The size numbers, approximate capillary radii, approximate calibration factors, K, and viscosity ranges for the series of MKVV are given in Table A.3. Thi
40、s viscometer consists of a separate filling tube, A, and precision-bore glass capillary vacuum tube, M. These two parts are joined by a borosilicate ground glass joint, N, with a 24/40 standard taper. Measuring bulb B, bulb C and bulb D, on the glass capillary are 20 mm long capillary segments, defi
41、ned by timing marks F, G, H and I. 5.1.5 Holder, made by drilling two holes, 22 mm and 8 mm internal diameter, through a No. 11 rubber stopper. The centre-to-centre distance between holes shall be 25 mm. Slit the rubber stopper between the holes and between the 8 mm hole and edge of the stopper. Whe
42、n placed in a 51 mm diameter hole in the bath cover, the stopper shall hold the viscometer in place. For the MKVV the viscometer holder can be made by drilling a 28 mm hole through the centre of a No. 11 rubber stopper and slitting the stopper between the hole and the edge. Such holders are commerci
43、ally available. 5.2 Temperature measuring device A temperature measuring device (combining sensor and reading unit) shall have a range from at least 55 C to 65 C, be readable to 0,05 C or less, have an accuracy of 0,2 C. Sensors based on platinum resistance thermometers have been found suitable but
44、other principles are also allowed. The thermal response time of the sensor shall be comparable with the former used reference (see informative Annex C). The temperature measuring device shall be calibrated regularly. A solid stem mercury thermometer (which used to be the former reference thermometer
45、 as described in Annex C) is also allowed if national regulations permit its use. The specified thermometers shall be standardized at total immersion; that is immersion to the top of the mercury column with the reminder of the stem and the expansion chamber at the top exposed to room temperature. Th
46、e practise of completely submerging the thermometer is not recommended. When thermometers are completely submerged, corrections for each individual thermometer based on calibration under conditions of complete submergence are determined and applied. If the thermometer is completely submerged in the
47、bath during use, the pressure of the gas in the expansion chamber will be higher or lower than during standardization, and can cause a high or low reading on the thermometer. It is essential that liquid-in-glass thermometers are calibrated periodically and those official corrections be adjusted as n
48、ecessary to conform to any changes in temperature readings. The thermometer shall be read, estimating the reading to 0,1 C. Thermometers should be checked at regular intervals. A commonly used procedure given in method ASTM E77 2 applies a correction that is based on changes in the ice point calibra
49、tion. When measuring and controlling nominally constant temperatures, as in this test method, the thermal response time can be rather high (e.g. slow response to a change in temperature). Care shall be taken to consider this aspect since low thermal response time of the sensor can indicate greater cyclic variations than the bituminous material in practise experiences. DIN EN 12596:2015-01 EN 12596:2014 (E) 7 5.3 Bath, suitable for immersion of the viscometer so that the liquid reservoir or the top of the capillary whichever is u
