1、August 2013 Translation by DIN-Sprachendienst.English price group 10No 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).ICS
2、 93.080.20!%m“2047493www.din.deDDIN EN 12697-3Bituminous mixtures Test methods for hot mix asphalt Part 3: Bitumen recovery: Rotary evaporator;English version EN 12697-3:2013,English translation of DIN EN 12697-3:2013-08Asphalt Prfverfahren fr Heiasphalt Teil 3: Rckgewinnung des Bindemittels: Rotati
3、onsverdampfer;Englische Fassung EN 12697-3:2013,Englische bersetzung von DIN EN 12697-3:2013-08Mlanges bitumineux Mthodes dessai pour enrobs chaud Partie 3: Extraction des bitumes lvaporateur rotatif;Version anglaise EN 12697-3:2013,Traduction anglaise de DIN EN 12697-3:2013-08SupersedesDIN EN 12697
4、-3:2005-04www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages 07.13 DIN EN 12697-3:2013-08 2 A comma is used as the decimal marker. National foreword This document (EN 12697-3:2013) has been prepared by Technical Committee CEN/TC 2
5、27 “Road materials” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-10-10 AA Asphalt. Amendments This standard differs from DIN EN 12697-3:2005-04 as f
6、ollows: a) the scope of the standard has been rendered more precise; b) the definitions for precision and associated terms have been deleted; c) “remaining solvent” has been redefined as “solvent residue”; d) the minimum evaporation capacity of solvent of the evaporator has been reduced from 1,0 l/h
7、 to 0,8 l/h; e) the container no longer has to be made of glass; f) the warning note about solvent has been clarified; g) silicon grease is now permitted as a seal; h) the specification concerning silica gel has been corrected; i) the pouring of bitumen solution has been editorially revised; j) the
8、reference to EN 12697-1 concerning the ash content has been corrected; k) the maximum time for bitumen recovery distillation has been reduced; l) the check for air leaks has been deleted; m) first phase temperature and second phase pressure with dichloromethane have been changed; n) the minimum fina
9、l pressure has been made relevant to first phase pressure instead of being a fixed value for all solvents; o) a note about the use of nitrogen to prevent the bitumen from ageing has been added; p) the note on the expected time for distillation has been deleted. Previous editions DIN EN 12697-3: 2001
10、-04, 2005-04 5EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-3 May 2013 ICS 93.080.20 Supersedes EN 12697-3:2005English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 3: Bitumen recovery: Rotary evaporator Mlanges bitumineux - Mthodes dessai pour enrobs chaud - Par
11、tie 3: Extraction des bitumes lvaporateur rotatif Asphalt - Prfverfahren fr Heiasphalt - Teil 3: Rckgewinnung des Bindemittels: Rotationsverdampfer This European Standard was approved by CEN on 28 March 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
12、he 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-CENELEC Management Centre or to any CEN member. This European Standar
13、d 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-CENELEC Management Centre has the same status as the official versions. CEN members are the nation
14、al standards 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, Slova
15、kia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved wo
16、rldwide for CEN national Members. Ref. No. EN 12697-3:2013: EEN 12697-3:2013 (E) 2 Contents Page Foreword 3 1 Scope 7 2 Normative references 7 3 Terms and definitions .7 4 Principle 7 5 Apparatus .7 5.1 Apparatus for the extraction of the soluble bitumen .7 5.2 Apparatus for the clarification of the
17、 bitumen solution.8 5.3 Distillation apparatus 8 6 Solvent and other materials 9 7 Procedure .9 7.1 Extraction of the bitumen and removal of insoluble matter 9 7.2 Assembling the apparatus . 10 7.3 Distillation procedure . 10 8 Preparation of the bitumen for testing . 12 9 Test report . 12 10 Precis
18、ion 13 Bibliography . 15 DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 3 Foreword This document (EN 12697-3:2013) has been prepared by Technical Committee CEN/TC 227 “Road materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, eithe
19、r by publication of an identical text or by endorsement, at the latest by November 2013, and conflicting national standards shall be withdrawn at the latest by November 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and
20、/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12697-3:2005. The significant changes from that document include: The Scope is clarified. The definitions for precision and associated terms have been removed. Remaining solvent is re
21、defined as solvent residue. The minimum evaporation capacity of solvent has been reduced from 1,0 l/h to 0,85 l/h. The container no longer has to be made of glass. The warning note about solvent is clarified. Silicon grease is permitted as a seal. Silica gel has been corrected. Pouring of bitumen so
22、lution has been edited. Ash content reference to EN 12697-1 has been corrected. Maximum time for bitumen recovery distillation is reduced. Check for air leaks has been removed. First phase temperature and second phase pressure with dichloromethane has been changed. The minimum final pressure has bee
23、n made relevant to first phase pressure instead of fixed value for all solvents. The use of nitrogen to prevent the bitumen from ageing has been added. The note on expected time for distillation has been removed. This part of EN 12697, Bituminous mixtures Test methods for hot mix asphalt, is one of
24、a series of standards as listed below: Part 1: Soluble binder content DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 4 Part 2: Determination of particle size distribution Part 3: Bitumen recovery: Rotary evaporator Part 4: Bitumen recovery: Fractionating column Part 5: Determination of the maximum densi
25、ty Part 6: Determination of bulk density of bituminous specimens Part 7: Determination of bulk density of bituminous specimens by gamma rays Part 8: Determination of void characteristics of bituminous specimens Part 9: Determination of the reference density Part 10: Compactibility Part 11: Determina
26、tion of the affinity between aggregate and bitumen Part 12: Determination of the water sensitivity of bituminous specimens Part 13: Temperature measurement Part 14: Water content Part 15: Determination of the segregation sensitivity Part 16: Abrasion by studded tyres Part 17: Particle loss of porous
27、 asphalt specimen Part 18: Binder drainage Part 19: Permeability of specimen Part 20: Indentation using cube or cylindrical specimens (CY) Part 21: Indentation using plate specimens Part 22: Wheel tracking Part 23: Determination of the indirect tensile strength of bituminous specimens Part 24: Resis
28、tance to fatigue Part 25: Cyclic compression test Part 26: Stiffness Part 27: Sampling Part 28: Preparation of samples for determining binder content, water content and grading Part 29: Determination of the dimensions of a bituminous specimen DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 5 Part 30: Spe
29、cimen preparation by impact compactor Part 31: Specimen preparation by gyratory compactor Part 32: Laboratory compaction of bituminous mixtures by vibratory compactor Part 33: Specimen prepared by roller compactor Part 34: Marshall test Part 35: Laboratory mixing Part 36: Determination of the thickn
30、ess of a bituminous pavement Part 37: Hot sand test for the adhesivity of binder on precoated chippings for HRA Part 38: Common equipment and calibration Part 39: Binder content by ignition Part 40: In situ drainability Part 41: Resistance to de-icing fluids Part 42: Amount of foreign matter in recl
31、aimed asphalt Part 43: Resistance to fuel Part 44: Crack propagation by semi-circular bending test Part 45: Saturation Ageing Tensile Stiffness (SATS) conditioning test Part 46: Low temperature cracking and properties by uniaxial tension tests Part 47: Determination of the ash content of natural asp
32、halts Part 48:Interlayer bonding (Torque bond test TBT, Shear bond test SBT, Tensile Adhesion Test - TAT)1) Part 49: Determination of friction after polishing1) Part 50: Resistance to scuffing1)WARNING The method described in this European Standard may require the use of dichloromethane (methylene c
33、hloride), 1.1.1-trichlorethane, benzene, trichlorethylene, xylene, toluene, tetrachloroethylene or other solvent capable of dissolving bitumen. These solvents are hazardous to health and are subject to occupational exposure limits as detailed in relevant legislation and regulations. Exposure levels
34、are related to both handling procedures and ventilation provision and it is important that adequate training be given to staff employed in the usage of these substances. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to im
35、plement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech 1)In preparation. DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 6 Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
36、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 7 1 Scope This document describes a test method for the recovery of soluble bitumen from bituminous mixtures us
37、ed in road, airfield or similar pavements in a form suitable for further testing. The test can be undertaken on either loose or compacted asphalt materials. The procedure is suitable for the recovery of paving grade bitumens, for which materials this European Standard is the reference method. The fr
38、actionating column procedure (see EN 12697-4) is the reference method for mixtures containing volatile matter such as cut-back bitumen. For recovery of polymer modified bitumens, the rotary evaporator procedure is recommended. 2 Normative references The following documents, in whole or in part, are
39、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 12594, Bitumen and bituminous binders Preparation of t
40、est samples EN 12697-1:2012, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content EN 12697-38, Bituminous mixtures Test methods for hot mix asphalt Part 38: Common equipment and calibration 3 Terms and definitions For the purposes of this document, the terms and defini
41、tions given in EN 12697-1:2012 and the following apply. 3.1 soluble binder content proportion of extractable binder in an anhydrous sample determined by extracting the binder from the sample Note 1 to entry: Extraction can be followed by binder recovery. Note 2 to entry: The soluble binder content i
42、s expressed in percent by mass. 3.2 insoluble binder content proportion of binder that adheres to the aggregate after extraction Note 1 to entry: The insoluble binder content is expressed in percent by mass. 4 Principle The bitumen is separated from the sample by dissolving in dichloromethane (or ot
43、her suitable solvent). After removal of undissolved solids from the bitumen solution, the bitumen is recovered from it by vacuum distillation using a rotary evaporator. The bitumen is in solution for less than 24 h. 5 Apparatus 5.1 Apparatus for the extraction of the soluble bitumen A suitable conta
44、iner with stopper in which the sample and solvent can be agitated together, an asphalt analyser or other apparatus for the extraction of soluble bitumen defined in EN 12697-1. DIN EN 12697-3:2013-08 EN 12697-3:2013 (E) 8 NOTE The use of the hot extraction methods in EN 12697-1 may harden the binder
45、and hence affect the results from subsequent tests. However, this hardening is usually approximately equivalent to the softening resulting from any solvent residue. 5.2 Apparatus for the clarification of the bitumen solution For clarification of the bitumen solution, a sample-tube centrifuge, a cont
46、inuous centrifuge or a filtration system may be used. Centrifuges are suitable for separation of solids from any bitumen solutions and are the recommended apparatus for use with this method. The filtration apparatus may not be suitable for the separation of solids from all types of bituminous soluti
47、ons but it has been included in this method because of the general availability of this equipment in asphalt testing laboratories. If difficulties are experienced using a pressure filter the centrifuge technique should be used. NOTE If an asphalt analyser is used for the extraction of soluble bitume
48、n, the use of a centrifuge is not required. 5.2.1 Sample tube centrifuge, capable of developing an acceleration of at least 15 000 m/s2in accordance with the formula: a = 1,097 n2 r 105(1) where a is the acceleration, expressed in metres per second squared (m/s2); n is the number of revolutions, expressed as revolution per minute (r/min); r is the radius to the bottom of the
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