EN 14769:2012
(Main)Bitumen and bituminous binders - Accelerated long-term ageing conditioning by a Pressure Ageing Vessel (PAV)
Bitumen and bituminous binders - Accelerated long-term ageing conditioning by a Pressure Ageing Vessel (PAV)
This European Standard specifies an accelerated ageing/conditioning procedure for bituminous binders. The procedure involves ageing trays of binder at elevated temperatures under pressurised conditions in a pressure ageing vessel (PAV).
NOTE For binders to be used in hot asphalt applications, the pre-conditioning of the sample would typically be done using one of the methods in the EN 12607 series. For binders to be used in bituminous emulsion and cut-back or fluxed applications, the stabilising of the sample should be such that there are no volatiles remaining.
WARNING — The use of this European Standard can involve hazardous materials, operations and equipment, in particular, the use of a high pressure ageing vessel. 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 health and safety practices and determine the applicability of regulatory limitations prior to use. If there is the likelihood of volatile components being present in a binder, this procedure shall not be used.
Bitumen und bitumenhaltige Bindemittel - Beschleunigte Langzeit-Alterung mit einem Druckalterungsbehälter (PAV)
Diese Europäische Norm legt ein Konditionierungsverfahren mit beschleunigter Alterung/Konditionierung für bitumenhaltige Bindemittel fest. Das Verfahren beschreibt die Alterung von Bindemitteln in Schalen bei erhöhten Temperaturen in einem Druckalterungsbehälter (PAV, en: pressure ageing vessel) unter Überdruck-Bedingungen. ANMERKUNG Bei Bindemitteln, die für Heißasphaltanwendungen vorgesehen sind, würde die Vorbehandlung der Probe üblicherweise nach einem der in EN 12607 festgelegten Verfahren erfolgen. Bei Bindemitteln, die in Anwendungen mit Bitumenemulsionen und verschnittenen oder gefluxten Bitumen verwendet werden sollen, sollte die Stabilisierung der Probe so erfolgen, dass keine flüchtigen Bestandteile zurückbleiben. WARNUNG — Die Anwendung dieser Europäischen Norm kann den Umgang mit gefährlichen Substanzen und Ausrüstungsteilen – speziell die Verwendung eines Hochdruckalterungsbehälters – und die Ausführung gefährlicher Arbeitsgänge einschließen. Diese Europäische Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme anzusprechen. Es liegt in der Verantwortung des Anwenders dieser Europäischen Norm, geeignete Verhaltensregeln für den Arbeits- und Gesundheitsschutz festzulegen und vor der Anwendung zu klären, ob einschränkende Vorschriften zu berücksichtigen sind. Ist es wahrscheinlich, dass flüchtige Bestandteile in einem Bindemittel vorhanden sind, darf dieses Verfahren nicht angewendet werden.
Bitumes et liants bitumineux - Vieillissement long-terme accéléré réalisé dans un récipient de vieillissement sous pression (PAV)
La présente Norme européenne décrit une méthode de vieillissement/conditionnement accéléré des liants bitumineux. La méthode repose sur le vieillissement sous pression de coupelles de liant à des températures élevées dans un récipient de vieillissement sous pression (PAV). NOTE Pour les liants destinés à être utilisés dans des applications d'enrobés à chaud, le pré-conditionnement de l’échantillon est typiquement effectué selon une des méthodes de la série des EN 12607. Pour les liants destinés à être utilisés dans des émulsions bitumineuses et des applications de liants fluidifiés ou fluxés, il est recommandé que la stabilisation de l’échantillon soit telle que plus aucun composé volatil ne soit présent. AVERTISSEMENT — L'utilisation de la présente norme européenne implique l'intervention de produits, d'opérations et d'équipements à caractère dangereux, en particulier, l’utilisation d’un récipient de vieillissement à haute pression. 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 consulter et d'établir des règles d'hygiène et de sécurité appropriées et de déterminer l'applicabilité des restrictions réglementaires avant utilisation. Si des composés volatils sont suspectés être présents dans le liant, cette procédure ne doit pas être utilisée.
Bitumen in bitumenska veziva - Pospešeno staranje v tlačni posodi (PAV)
Ta evropski standard določa postopek pospešenega staranja in pogoje za bitumenska veziva. Postopek zajema staranje vložkov veziva pri zvišanih temperaturah v tlačnih pogojih v tlačnih posodi (PAV).
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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 - Beschleunigte Langzeit-Alterung mit einem Druckalterungsbehälter (PAV)Bitumes et liants bitumineux - Vieillissement long-terme accéléré réalisé dans un récipient de vieillissement sous pression (PAV)Bitumen and bituminous binders - Accelerated long-term ageing conditioning by a Pressure Ageing Vessel (PAV)91.100.50Veziva. Tesnilni materialiBinders. Sealing materials75.140Voski, bitumni in drugi naftni proizvodiWaxes, bituminous materials and other petroleum productsICS:Ta slovenski standard je istoveten z:EN 14769:2012SIST EN 14769:2012en,fr,de01-september-2012SIST EN 14769:2012SLOVENSKI
STANDARDSIST EN 14769:20051DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14769
May 2012 ICS 75.140; 91.100.50 Supersedes EN 14769:2005English Version
Bitumen and bituminous binders - Accelerated long-term ageing conditioning by a Pressure Ageing Vessel (PAV)
Bitumes et liants bitumineux - Vieillissement long-terme accéléré réalisé dans un récipient de vieillissement sous pression (PAV)
Bitumen und bitumenhaltige Bindemittel - Beschleunigte Langzeit-Alterung mit einem Druckalterungsbehälter (PAV)This European Standard was approved by CEN on 7 April 2012.
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, 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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14769:2012: ESIST EN 14769:2012
point 3.2, 3.3 and addition of 3.4 plus Notes; b) Note added in 5.1 and sub-clauses
5.5, 5.7 and 5.8 restructured; c) Note 4 introduced, Note 5 improved and new paragraph added about conditioning temperatures and warning added in Clause 6; d) references to EN 14895 withdrawn. 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, 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 14769:2012
WARNING — The use of this European Standard can involve hazardous materials, operations and equipment, in particular, the use of a high pressure ageing vessel. 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 health and safety practices and determine the applicability of regulatory limitations prior to use. If there is the likelihood of volatile components being present in a binder, this procedure shall not be used. 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 12607-1:2007, Bitumen and bituminous binders — Determination of the resistance to hardening under the influence of heat and air — Part 1: RTFOT method EN 12607-2:2007, Bitumen and bituminous binders — Determination of the resistance to hardening under the influence of heat and air — Part 2: TFOT method EN 12607-3:2007, Bitumen and bituminous binders — Determination of the resistance to hardening under the influence of heat and air — Part 3: RFT method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 short-term ageing short-term conditioning conditioning that the binder experiences during the method described in EN 12607-1:2007, EN 12607-2:2007 and EN 12607-3:2007 3.2 stabilisation conditioning of the binders from bituminous emulsions, cut-backs or fluxed bitumens to produce residual binders for further determination of their characteristics EXAMPLE The procedure described in EN 13074-2:2007. 3.3 long-term ageing ageing that the binder experiences during its service life SIST EN 14769:2012
accelerated long-term conditioning simulated long-term ageing that the binder goes through during the accelerated pressure ageing procedure
Note 1 to entry: In the case of hot mix asphalt binders, the long-term ageing is carried out on binders that have already been conditioned through short-term ageing/conditioning. Note 2 to entry: In the case of bituminous emulsion and cut-back, the long-term ageing is carried out on binders after a stabilisation procedure. 4 Principle A static film of binder is heated to a specified temperature under a specified air pressure for a given period of time. This is done in order to simulate the changes occurring to the binder within the pavement during use. The effects of this ageing procedure are evaluated on the residual binder after the test. NOTE The ageing of binders during service is affected by ambient temperature and air pressure as well as by a mixture of associated variables such as volumetric mixture proportions, mixture permeability, aggregate properties and other factors. This test is intended to provide an evaluation of the relative ageing behaviour of binders under specified conditions, but it cannot account entirely for bituminous application variables or provide relative resistance to ageing at in-service conditions. 5 Apparatus Usual laboratory apparatus and glassware, together with the following: 5.1 Pressure/temperature vessel, designed to operate at (2,1 ± 0,1) MPa between 80 °C and 115 °C. Either 5.1.1 and 5.1.2 or 5.1.3 is applicable (see Figure 1). 5.1.1 Pressure vessel, which shall be made from stainless steel and shall have internal dimensions adequate to contain a pan holder capable of holding a number of containers (as per requirements and dimensions given in EN 12607-2:2007).
The bottom of the pressure vessel shall be such that the containers are held in a horizontal position with the binder film thickness evenly distributed across the diameter of the container. A diagram showing a possible configuration of the vessel pan holder and containers and specifying dimensional requirements is shown in Figure 2. NOTE 1 Most pan holder assemblies hold up to 10 containers. NOTE 2 Other pressure vessels of different internal dimensions may be used provided that the operating conditions can be satisfied. In such cases, the containers used may differ from the standard dimensions given in EN 12607-2:2007.
5.1.2 Forced-draft oven, to be used with 5.1.1 and which is capable of e) bringing the loaded pressurised vessel to the desired conditioning temperature ± 0,5 °C, as recorded by a suitable thermometer inside the vessel, within two hours after loading the pressure vessel into the oven, f) maintaining the temperature at all points within the vessel at the ageing temperature ± 0,5 °C. The oven shall have sufficiently large interior dimensions to allow forced air to freely circulate within the oven and around the pressure vessel. The oven shall contain a stand or a shelf, which supports the loaded pressure vessel in a level position above the lower surface of the oven. SIST EN 14769:2012
(1) where d1
is the normal container diameter (140 ± 1) mm, d2
is the actual container diameter in millimetres with a tolerance of ± 1 mm, and M
is the mass of binder at ambient temperature for the actual container. 5.6 Balance, which shall be capable of weighing to an accuracy of ± 0,1 g. SIST EN 14769:2012
The vacuum system shall be capable of maintaining pressures below (15,0 ± 2,5) kPa absolute. Alternatively, the pressure vessel itself may be used in lieu of the vacuum oven if it is capable of maintaining a temperature of 180 °C and a vacuum of (15,0 ± 2,5) kPa. 5.8 Commercial bottled air, which is suitable for the purpose of providing a sufficient supply of pressurized air to carry out the test. (Only bottled air is suit
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