Bitumen and bituminous binders - Determination of efflux time of bituminous emulsions using the Redwood No. II Viscometer

This European Standard specifies a method for the determination of the efflux time (in seconds) of a bituminous emulsion at 85 °C using the Redwood No. II Viscometer.
WARNING - The 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.

Bitumen und bitumenhaltige Bindemittel - Bestimmung der Ausflusszeit von Bitumenemulsionen mit dem Redwood Nr. II-Viskosimeter

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Ausflusszeit (Viskosität in Sekunden) von Bitumenemulsionen mit dem Redwood Nr. II-Viskosimeter bei 85 °C fest.
WARNUNG - Die Anwendung dieser Europäischen Norm kann den Umgang mit gefährlichen Substanzen und Aus¬rüstungsteilen 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 einschränkenden Vorschriften zu berücksichtigen sind.

Bitumes et liants bitumineux - Mesure du temps d'écoulement des émulsions bitumineuses avec le Viscosimètre Redwood No. II

La présente Norme européenne spécifie une méthode permettant de déterminer le temps d’écoulement (en secondes) d’une émulsion bitumineuse à 85 °C au moyen d’un viscosimètre Redwood no. II.
AVERTISSEMENT - L'utilisation de la présente Norme européenne peut impliquer l’intervention de produits, d'opérations et d'équipements à caractère 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 consulter et d'établir des règles de sécurité et d'hygiène appropriées et de déterminer l'applicabilité des restrictions réglementaires avant utilisation.

Bitumen in bitumenska veziva - Ugotavljanje viskoznosti bitumenskih emulzij z viskozimetrom po Redwoodu, št. II

Ta evropski standard določa metodo za ugotavljanje viskoznosti (v sekundah) pri 85 °C z viskozimetrom po Redwoodu, št. II.

General Information

Status
Published
Public Enquiry End Date
31-Mar-2012
Publication Date
26-Sep-2012
ICS
75.140 - Waxes, bituminous materials and other petroleum products
 
91.100.50 - Binders. Sealing materials
Technical Committee
VLA - Water proofing
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Aug-2012
Due Date
06-Oct-2012
Completion Date
27-Sep-2012
Directive
305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
89/106/EEC - Construction products
Mandate
M/124 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on road construction products
Ref Project
EN 16345:2012 - Bitumen and bituminous binders - Determination of efflux time of bituminous emulsions using the Redwood No. II Viscometer

Overview

EN 16345:2012 is the CEN test method for measuring the efflux time (a form of pseudo‑viscosity) of bituminous emulsions using the Redwood No. II Viscometer. The standard defines how to determine the time (in seconds) for a specified volume of emulsion to flow through the viscometer orifice at a reference temperature of 85 °C. It is intended for laboratories, manufacturers and quality‑control teams working with bitumen and bituminous binders.

Key topics and technical requirements

  • Scope and principle: Measures efflux time of a 50 ml sample through a 3.8 mm orifice at 85 °C (Redwood No. II).
  • Apparatus: Standard Redwood No. II viscometer (including ball‑valve, oil cup and agate jet), calibrated thermometer (Annex A), receiver (50 ± 0.5 ml Kohlrausch flask or 100 ml graduated cylinder), timing device accurate to 0.1% and readable to 0.2 s, and water/oil bath.
  • Thermometer specification (Annex A): range 76–122 °C, immersion 65 mm, scale subdivisions 0.2 °C, maximum scale error 0.2 °C.
  • Sampling and sample prep: Sampled and prepared in accordance with EN 58 and EN 12594; about 200 ml of specimen is pre‑heated (no direct flame) to slightly above test temperature before testing.
  • Procedure controls: Maintain specimen at 85 °C, avoid stirring during run, ensure surface touches filling point, start timing on valve lift, stop when 50 ml mark is reached. Reject runs if specimen temperature varies by more than 0.3 °C during efflux.
  • Results and precision: Report efflux time to the nearest 0.5 s. Repeatability and reproducibility limits are defined (for example: for efflux time <20 s, repeatability 2 s; for 20–50 s, repeatability 2 s and reproducibility 10% of mean; >50 s, repeatability 5% and reproducibility 10%).
  • Test report: Must include sample ID, reference to EN 16345:2012, test temperature, orifice diameter, result in seconds, deviations from procedure and test date.
  • Safety notice: Standard warns about hazardous materials and operations - users must apply appropriate health and safety practices.

Applications and users

  • Quality control of bituminous emulsions used in road surfacing, tack coats, sealing materials and asphalt mixtures.
  • Routine laboratory testing in bitumen production plants, independent testing labs and construction material test facilities.
  • Procurement, compliance testing and product development teams assessing emulsion flow behavior and batch consistency.
  • Useful where a rapid, repeatable measure of emulsion pseudo‑viscosity at elevated temperature is required.

Related standards (normative/bibliography)

  • EN 58 - Sampling bituminous binders
  • EN 12594 - Preparation of test samples
  • EN 13302 - Dynamic viscosity by rotating spindle (related viscosity methods)
  • EN ISO 4788, BS 593 (laboratory glassware / thermometers)

Keywords: EN 16345:2012, Redwood No. II, efflux time, bituminous emulsions, viscometer, viscosity test, bitumen binders, quality control, asphalt emulsions.

Frequently Asked Questions

SIST EN 16345:2012 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Bitumen and bituminous binders - Determination of efflux time of bituminous emulsions using the Redwood No. II Viscometer". This standard covers: This European Standard specifies a method for the determination of the efflux time (in seconds) of a bituminous emulsion at 85 °C using the Redwood No. II Viscometer. WARNING - The 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.

This European Standard specifies a method for the determination of the efflux time (in seconds) of a bituminous emulsion at 85 °C using the Redwood No. II Viscometer. WARNING - The 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.

SIST EN 16345:2012 is classified under the following ICS (International Classification for Standards) categories: 75.140 - Waxes, bituminous materials and other petroleum products; 91.100.50 - Binders. Sealing materials. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 16345:2012 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/124. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

SIST EN 16345:2012 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bitumen in bitumenska veziva - Ugotavljanje viskoznosti bitumenskih emulzij z viskozimetrom po Redwoodu, št. IIBitumen und bitumenhaltige Bindemittel - Bestimmung der Ausflusszeit von Bitumenemulsionen mit dem Redwood Nr. II-ViskosimeterBitumes et liants bitumineux - Mesure du temps d'écoulement des émulsions bitumineuses avec le Viscosimètre
Redwood No. IIBitumen and bituminous binders - Determination of efflux time of bituminous emulsions using the Redwood No. II Viscometer91.100.50Veziva. Tesnilni materialiBinders. Sealing materials75.140Voski, bitumni in drugi naftni proizvodiWaxes, bituminous materials and other petroleum productsICS:Ta slovenski standard je istoveten z:EN 16345:2012SIST EN 16345:2012en,fr,de01-oktober-2012SIST EN 16345:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16345
July 2012 ICS 75.140; 91.100.50 English Version
Bitumen and bituminous binders - Determination of efflux time of bituminous emulsions using the Redwood No. II Viscometer
Bitumes et liants bitumineux - Mesure du temps d'écoulement des émulsions bitumineuses avec le Viscosimètre
Redwood No. II
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Ausflusszeit von Bitumenemulsionen mit dem Redwood Nr. II-Viskosimeter This European Standard was approved by CEN on 25 May 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, 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
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 16345:2012: ESIST EN 16345:2012

Specifications of thermometer .8Bibliography .9 SIST EN 16345:2012
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