SIST EN 12607-2:2014
(Main)Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 2: TFOT method
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 2: TFOT method
This part of EN 12607 describes a method for measuring the combined effects of heat and air on a film of bitumen or bituminous binder, simulating the hardening which most bituminous binders undergo during mixing in an asphalt mixing plant. The method is suitable for other bituminous binders than paving grade bitumen, but the reference temperature might give excessive hardening that do not resemble real conditions during mixing at the plant. The method may not represent the hardening that occurs during mixing of warm mix binders.
Additionally, this part of EN 12607 specifies a method for the determination of the change in mass of oxidised bitumens and hard industrial bitumens after heating. The method is used to detect volatile components, and in EN 13304 and EN 13305, it will be reported as loss in mass.
The method is referred to as TFOT, i.e. Thin Film Oven Test.
WARNING - Use of this European Standard 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 establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
If there is a likelihood of volatile components being present in a binder, this procedure should not be used. It should not be used for cutback bitumen or bituminous emulsions before these products have been stabilised, e.g. in accordance with EN 13074-2.
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Beständigkeit gegen Verhärtung unter Einfluss von Wärme und Luft - Teil 2: TFOT-Verfahren
Dieser Teil von EN 12607 beschreibt ein Verfahren zur Messung der kombinierten Wirkungen von Wärme und Luft auf eine dünne Schicht aus Bitumen oder bitumenhaltigem Bindemittel, mit dem die Verhärtung der meis¬ten bitumenhaltigen Bindemittel während des Mischvorgangs in einer Asphaltmischanlage simuliert wird. Das Verfahren eignet sich für andere bitumenhaltige Bindemittel als Straßenbaubitumen, die festgelegte Referenz¬temperatur kann jedoch zu übermäßiger Verhärtung führen, die keine Ähnlichkeit mit den während des Misch¬vorgangs in einer Asphaltmischanlage tatsächlich auftretenden Bedingungen hat. Das Verfahren kann eine Verhärtung, wie sie während des Mischens von warmen Mischbindemitteln auftritt, möglicherweise nicht wiedergeben.
Darüber hinaus legt dieser Teil von EN 12607 ein Verfahren zur Bestimmung der Masseänderung von oxidier¬tem Bitumen und harten Industriebitumen nach Erwärmung fest. Das Verfahren dient zum Nachweis flüchtiger Bestandteile und wird in EN 13304 und EN 13305 als Masseverlust bezeichnet werden.
Die Prüfung wird als TFOT-Verfahren (en: Thin Film Oven Test) bezeichnet, d. h. Prüfung in dünner Schicht.
WARNUNG — Die Anwendung dieser Norm kann den Umgang mit gefährlichen Substanzen und Aus¬rüstungsteilen und die Ausführung gefährlicher Arbeitsgänge einschließen. Diese Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme anzusprechen. Es liegt in der Verantwortung des Anwenders dieser Norm, geeignete Verhaltensregeln zur Sicherheit und Gesundheit festzulegen und vor der Anwendung festzustellen, ob einschränkende Vorschriften einzu¬halten sind.
Falls die Wahrscheinlichkeit besteht, dass ein Bindemittel flüchtige Bestandteile enthält, sollte dieses Verfahren nicht angewendet werden. Bei verschnittenem Bitumen und Bitumenemulsionen sollte es nicht angewendet werden, bevor diese z. B. nach EN 14895 stabilisiert wurden.
Bitumes et liants bitumineux - Détermination de la résistance au durcissement sous l'effet de la chaleur et de l'air - Partie 2: Méthode TFOT
Cette partie de l’EN 12607 décrit une méthode qui permet de mesurer les effets combinés de la chaleur et de l'air sur un film mince de bitume ou de liant bitumineux en simulant le durcissement que la plupart des liants bitumineux subissent au cours du malaxage dans une centrale d'enrobage. La méthode est applicable à d’autres liants bitumineux que les bitumes routiers, mais la température de référence pourrait conduire à un durcissement excessif qui ne ressemble pas aux véritables conditions pendant l’enrobage en usine. La méthode peut ne pas représenter le durcissement qui advient pendant l’enrobage des liants à chaud.
De plus, cette partie de l’EN 12607 prescrit une méthode pour déterminer le changement de masse des bitumes oxydés et des bitumes industriels durs après chauffage. La méthode est utilisée pour détecter les composés volatils et, dans l’EN 13304 et l’EN 13305, cela sera reporté comme une perte de masse.
L’essai est désigné par TFOT c’est-à-dire Thin Film Oven Test, essai d’un film fin à l’étuve.
AVERTISSEMENT — L'utilisation de la présente Norme européenne peut impliquer le recours à de produits, des opérations et des équipements à caractères dangereux. La présente Norme européenne n'est pas censée aborder tous les problèmes de sécurité concernés par son usage. Il est de la responsabilité de l'utilisateur de la présente Norme européenne de consulter et d'établir des règles de sécurité et d'hygiène appropriées et de déterminer l'applicabilité des restrictions réglementaires avant utilisation.
Si la présence de composés volatils dans le liant est probable, il convient de ne pas utiliser le présent mode opératoire. Il convient de ne pas l'utiliser pour les bitumes fluidifiés ou les émulsions bitumineuses, avant la stabilisation de ces produits, réalisées, par exemple, conformément à l’EN 13074-2.
Bitumen in bitumenska veziva - Določanje odpornosti proti otrjevanju pod vplivom toplote in zraka - 2. del: Metoda TFOT
Ta del standarda EN 12607 opisuje metodo merjenja skupne vplive toplote in zraka na plast bitumna ali bitumenskega veziva s simulacijo otrjevanja, ki ga med mešanjem v asfaltnem obratu prestane večina bitumenskih veziv. Metoda je primerna za vsa bitumenska veziva, razen za cestnogradbene bitumne, vendar lahko referenčna temperatura povzroči prekomerno otrjevanje, ki ni podobno otrjevanju pod pravimi pogoji med mešanjem v asfaltnem obratu. Metoda morda ne predstavlja otrjevanja, ki nastane med mešanjem toplih veziv.
Ta del standarda EN 12607 določa tudi metodo določanja spreminjanje mase oksidiranih bitumnov in trdih industrijskih bitumnov po segrevanju. Metoda se uporablja za odkrivanje hlapnih komponent ter v standardih EN 13304 in EN 13305, bo to opisano kot izguba mase.
Metoda se imenuje TFOT.
OPOZORILO – pri uporabi tega evropskega standarda so lahko prisotni nevarni materiali, postopki in oprema. Ta evropski standard ne obravnava vseh varnostnih težav, ki se nanašajo na njegovo uporabo. Za vzpostavitev ustreznih varnostnih in zdravstvenih praks ter za določitev uporabnosti regulativnih omejitev pred uporabo je odgovoren uporabnik tega evropskega standarda.
Če obstaja verjetnost prisotnosti hlapnih komponent v vezivu, se tega postopka ne sme uporabiti. Ne sme se uporabljati za rezani bitumen ali bitumenske emulzije, preden so ti produkti stabilizirani, npr. v skladu s standardom EN 13074-2.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bitumen und bitumenhaltige Bindemittel - Bestimmung der Beständigkeit gegen Verhärtung unter Einfluss von Wärme und Luft - Teil 2: TFOT-VerfahrenBitumes et liants bitumineux - Détermination de la résistance au durcissement sous l'effet de la chaleur et de l'air - Partie 2: Méthode TFOTBitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 2: TFOT method91.100.50Veziva. Tesnilni materialiBinders. Sealing materials75.140Voski, bitumni in drugi naftni proizvodiWaxes, bituminous materials and other petroleum productsICS:Ta slovenski standard je istoveten z:EN 12607-2:2014SIST EN 12607-2:2014en,fr,de01-december-2014SIST EN 12607-2:2014SLOVENSKI
STANDARDSIST EN 12607-2:20071DGRPHãþD
SIST EN 12607-2:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12607-2
November 2014 ICS 75.140; 91.100.50 Supersedes EN 12607-2:2007English Version
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 2: TFOT method
Bitumes et liants bitumineux - Détermination de la résistance au durcissement sous l'effet de la chaleur et de l'air - Partie 2: Méthode TFOT
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Beständigkeit gegen Verhärtung unter Einfluss von Wärme und Luft - Teil 2: TFOT-Verfahren 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 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 Standard 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 national 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12607-2:2014 ESIST EN 12607-2:2014
EN 12607-2:2014 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Principle .4 4 Apparatus .5 5 Sampling .6 6 Procedure .7 7 Calculation .7 8 Expression of results .8 9 Precision .8 10 Test report .9 Annex A (informative)
Characteristics of thermometers. 10 Bibliography . 11
SIST EN 12607-2:2014
EN 12607-2:2014 (E) 3 Foreword This document (EN 12607-2:2014) 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 or by endorsement, at the latest by May 2015 and conflicting national standards shall be withdrawn 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 12607-2:2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. In comparison with EN 12607-2:2007, the following significant changes have been made: — changed/added wording of the Warning in the Scope; — EN 12595, Bitumen and bituminous binders — Determination of kinematic viscosity has been added to Clause 2;
— the reference to mercury thermometer has been deleted (see subclause 4.2) and Annex A is informative. EN 12607 consists of the following parts under the general title “Bitumen and bituminous binders – Determination of the resistance to hardening under the influence of heat and air”: — Part 1: RTFOT method; — Part 2: TFOT method; — Part 3: RFT method. The scope of this standard has been enlarged by adding oxidized bitumens and hard industrial bitumens that are not used for paving applications. The reason is to facilitate that EN 13303, Bitumen and bituminous binders – Determination of the loss of mass after heating of industrial bitumen can be replaced in product standards by EN 12607-2 at the next revision of EN 13303. It is to be noted that this – if so decided – will change the property from loss in mass into change in mass in EN 13304, Bitumen and bituminous binders – Framework for specification of oxidized bitumens and in EN 13305, Bitumen and bituminous binders – Framework for specification of hard industrial bitumens. 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, 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, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 12607-2:2014
EN 12607-2:2014 (E) 4 1 Scope This part of EN 12607 specifies a method for measuring the combined effects of heat and air on a film of bitumen or bituminous binder, simulating the hardening which most bituminous binders undergo during mixing in an asphalt mixing plant. The method is suitable for other bituminous binders than paving grade bitumen, but the reference temperature might give excessive hardening that does not resemble real conditions during mixing at the plant. The method may not represent the hardening that occurs during mixing of warm mix binders. Additionally, this part of EN 12607 specifies a method for the determination of the change in mass of oxidized bitumens and hard industrial bitumens after heating. The method is used to detect volatile components. The method is referred to as TFOT, i.e. Thin Film Oven Test. WARNING — Use of this European Standard 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 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. If there is a likelihood of volatile components being present in a binder, this procedure should not be used. It should not be used for cut-back bitumen or bituminous emulsions before these products have been stabilized, e.g. in accordance with EN 13074-2. 2 Normative references The following documents, in whole 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 - Sampling bituminous binders EN 1425, Bitumen and bituminous binders - Characterization of perceptible properties EN 12594, Bitumen and bituminous binders - Preparation of test samples EN 12595, Bitumen and bituminous binders - Determination of kinematic viscosity 3 Principle A film of bituminous binder is heated in an oven at a specified temperature for a given period of time. For bituminous binders for paving applications, the effects of heat and air are determined based on the change in mass (expressed as a percentage) and on the change in the bituminous binder's properties such as kinematic viscosity according to EN 12595, before and after the period in the oven. For bituminous binders for industrial applications, the combined effects of heat and air and loss of volatiles are determined based on the change in mass (expressed as a percentage). This will be the value from this conditioning method that will be utilized in EN 13304 and EN 13305 as loss in mass (change in sign). NOTE Penetration according to EN 1426 and softening point according to EN 1427 can be measured on harder grades before and after oven treatment at 163 °C. SIST EN 12607-2:2014
EN 12607-2:2014 (E) 5 4 Apparatus Usual laboratory apparatus and glassware, together with the following: 4.1 Oven, electrically heated and conforming to the performance requirements indicated in Table 1 for operating temperatures up to 180 °C. The oven shall be rectangular with a minimum interior height, width and depth of 330 mm. The front door shall be hinged and tightly fitted, and have a clear opening of the same height and width as the interior of the oven. The window on the door shall be at least 100 mm by 100 mm, with two sheets of glass separated by an air space. The window shall permit an unobstructed view of the interior of the oven so that the control thermometer, located as specified in 6.1 may be read without opening the door. NOTE 1 The oven can alternatively be provided with an inner glass door through which the thermometer can be read upon opening the outer door momentarily. The oven shall be ventilated by convection currents of air; the oven shall have air inlets and outlets evacuating hot gases meeting the requirements of Table 1. NOTE 2 These inlets and outlets can be of different size and
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