Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 3: RFT method

This part of EN 12607 specifies a method for measuring the combined effects of heat and air on a thin moving 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.
The method is referred to as RFT, i.e. Rotating Flask 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 cut-back 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 3: RFT-Verfahren

Dieser Teil von EN 12607 legt ein Verfahren zur Bestimmung der kombinierten Wirkungen von Wärme und Luft auf einen rollierenden dünnen Film aus Bitumen oder bitumenhaltigem Bindemittel fest, mit dem die Ver-härtung der meisten bitumenhaltigen Bindemittel während des Mischvorgangs in einer Asphaltmischanlage simuliert wird. Das Verfahren eignet sich für andere bitumenhaltige Bindemittel als Straßenbaubitumen, die festgelegte Referenztemperatur kann jedoch zu übermäßiger Verhärtung führen, die keine Ähnlichkeit mit den während des Mischvorgangs in einer Asphaltmischanlage tatsächlich auftretenden Bedingungen hat. Das Ver-fahren kann eine Verhärtung, wie sie während des Mischens von warmen Mischbindemitteln auftritt, mögli-cherweise nicht wiedergeben.
Die Prüfung wird als RFT-Verfahren (en: Rotating Flask Test) bezeichnet, d. h. Prüfung im rotierenden Kolben.
WARNUNG — Die Anwendung dieser Europäischen Norm kann den Umgang mit gefährlichen Sub-stanzen und Ausrüstungsteilen und die Ausführung gefährlicher Arbeitsgänge einschließen. Diese Europäische Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitspro-bleme anzusprechen. Es liegt in der Verantwortung des Anwenders dieser Europäischen Norm, geeig-nete Verhaltensregeln zur Sicherheit und Gesundheit festzulegen und vor der Anwendung festzustel¬len, ob einschränkende Vorschriften einzuhalten 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 Produkte 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 3: Méthode RFT

Cette partie de l’EN 12607 prescrit 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.
L'essai est désigné par RFT, c’est-à-dire Rotating Flask Test, essai au ballon tournant.
AVERTISSEMENT — L'utilisation de la présente Norme européenne peut nécessiter des produits, des opérations et des équipements dangereux. La présente norme européenne n’est pas censée aborder tous les problèmes de sécurité concernés par son utilisation. 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 si des restrictions réglementaires sont applicables avant son 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 - 3. del: Metoda RFT

Ta del standarda EN 12607 določa metodo merjenja skupne vplive toplote in zraka na tanko premikajočo se 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.
Metoda se imenuje RFT.
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

Status
Published
Public Enquiry End Date
19-May-2013
Publication Date
24-Nov-2014
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Nov-2014
Due Date
15-Jan-2015
Completion Date
25-Nov-2014

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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 3: RFT-VerfahrenBitumes et liants bitumineux - Détermination de la résistance au durcissement sous l'effet de la chaleur et de l'air - Partie 3: Méthode RFTBitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 3: RFT 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 12607-3:2014SIST EN 12607-3:2014en,fr,de01-december-2014SIST EN 12607-3:2014SLOVENSKI
STANDARDSIST EN 12607-3:20071DGRPHãþD



SIST EN 12607-3:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12607-3
November 2014 ICS 75.140; 91.100.50 Supersedes EN 12607-3:2007English Version
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 3: RFT method
Bitumes et liants bitumineux - Détermination de la résistance au durcissement sous l'effet de la chaleur et de l'air - Partie 3: Méthode RFT
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Beständigkeit gegen Verhärtung unter Einfluss von Wärme und Luft - Teil 3: RFT-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
CEN-CENELEC Management Centre:
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 12607-3:2014 ESIST EN 12607-3:2014



EN 12607-3:2014 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Principle .4 4 Apparatus .5 5 Sampling .6 6 Procedure .6 7 Calculation .8 8 Expression of results .8 9 Precision .8 10 Test report .9 Annex A (informative)
Characteristics of thermometer. 10 Bibliography . 11
SIST EN 12607-3:2014



EN 12607-3:2014 (E) 3 Foreword This document (EN 12607-3:2014) 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 12607-3:2007. 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 12607-3:2007, the following significant changes have been made: — changed/added wording of the Warning in the Scope; — EN 13302, Bitumen and bituminous binders - Determination of dynamic viscosity of bituminous binder using a rotating spindle apparatus has been added to Clause 2; — the reference to mercury thermometer has been deleted (see subclause 4.4) and Annex A is informative; — subclause 5.2: reference to RFT instead of RTFOT. 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. 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 12607-3:2014



EN 12607-3:2014 (E) 4 1 Scope This part of EN 12607 specifies a method for measuring the combined effects of heat and air on a thin moving 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. The method is referred to as RFT, i.e. Rotating Flask 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 1426, Bitumen and bituminous binders - Determination of needle penetration EN 1427, Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method EN 12594, Bitumen and bituminous binders - Preparation of test samples EN 12596, Bitumen and bituminous binders - Determination of dynamic viscosity by vacuum capillary EN 13302, Bitumen and bituminous binders - Determination of dynamic viscosity of bituminous binder using a rotating spindle apparatus 3 Principle A moving film of bituminous binder is heated in a rotating flask of a rotary evaporator at a specified temperature for a given period of time. The effect of rotation is that material forming on the surface of the sample in the flask is constantly replaced, preventing the formation of a skin. The effects of heat and air are determined based on the change in mass (expressed as a percentage) or as a change in the bituminous binders’ characteristics such as penetration according to EN 1426, softening point SIST EN 12607-3:2014



EN 12607-3:2014 (E) 5 ring and ball according to EN 1427 or dynamic viscosity according to EN 12596 or EN 13302, before and after hardening. 4 Apparatus Usual laboratory apparatus and glassware, together with the following: 4.1 Rotary evaporator, capable of maintaining a rotational speed of (20 ± 5) r/min, used in conjunction with a 1 000 ml round bottom flask with a 29/32 ground cone socket. NOTE Cooler and receiver are not required. 4.2 Flow control device, capable of maintaining an air flow rate of (500 ± 10) ml/min at ambient temperature. NOTE To eliminate the effects of oxidation reactions, the air can be replaced with inert gases such as nitrogen. 4.3 Flowmeter, capable of measuring the airflow at a rate of 500 ml/min with a maximum indication error of ± 5 ml/min. 4.4 Temperature measuring device A temperature measuring device (combining sensor and reading unit) shall: — have a range from at least 30 °C to 200 °C, — be readable to 0,1 °C or less, and — have an accuracy of 0,5 °C or better. Sensors based on platinum resistance thermome
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