EN 12697-11:2020
(Main)Bituminous mixtures - Test methods - Part 11: Determination of the affinity between aggregate and bitumen
Bituminous mixtures - Test methods - Part 11: Determination of the affinity between aggregate and bitumen
This document specifies procedures for the determination of the affinity between aggregate and bitumen and its influence on the susceptibility of the combination to stripping. This property is intended to be of assistance to the designer for mixture design rather than as a type test. Susceptibility to stripping, as determined by these procedures, is an indirect measure of the power of a binder to adhere to various aggregates, or of various binders to adhere to a given aggregate. The procedures can also be used to evaluate the effect of moisture on a given aggregate-binder combination with or without adhesion agents including liquids, such as amines, and fillers, such as hydrated lime or cement.
In the rolling bottle method, the affinity is expressed by visual registration of the degree of bitumen coverage on uncompacted bitumen-coated mineral aggregate particles after influence of mechanical stirring action in the presence of water.
NOTE 1 The rolling bottle test is a simple but subjective test and suitable for routine testing. It is not appropriate for aggregates that are highly abrasive.
In the static test method, the affinity is expressed by visual registration of the degree of bitumen coverage on uncompacted bitumen-coated mineral aggregate particles after storage in water.
NOTE 2 The static test is a simple, though subjective test that is generally less precise, but that can cope with high PSV-aggregates.
In the boiling water stripping test method, the affinity is expressed by determining the degree of bitumen-coverage on uncompacted bitumen-coated aggregate after immersion in boiling water under specified conditions.
NOTE 3 The boiling water stripping test is an objective test and has a high precision. However, it is a more specialist test because it requires greater skill of the operatives and uses chemicals as reagent. The latter point might also imply extra health and safety considerations.
NOTE 4 The boiling water stripping test procedure can be used for any binder-aggregate combinations in which the mineral aggregate is calcareous, silico-calcareous or siliceous by nature.
Asphalt - Prüfverfahren - Teil 11: Bestimmung der Affinität von Gesteinskörnungen und Bitumen
Dieses Dokument legt Verfahren zur Bestimmung der Affinität von Gesteinskörnungen und Bitumen und des Einflusses dieser Affinität auf die Anfälligkeit für das Ablösen des Bindemittels von der Gesteinskörnung fest. Diese Eigenschaft ist in erster Linie als Hilfestellung für Entwickler von Mischgutrezepturen und nicht als Eignungsprüfung gedacht. Die nach diesen Verfahren bestimmte Anfälligkeit für das Ablösen des Bindemittels von der Gesteinskörnung ist ein indirektes Maß für das Haftvermögen dieses Bindemittels an verschiedenen Gesteinskörnungen oder für das Haftvermögen verschiedener Bindemittel an einer bestimmten Gesteinskörnung. Diese Verfahren können auch zur Beurteilung der Auswirkung von Feuchte auf bestimmte Kombinationen aus Gesteinskörnung und Bindemittel mit oder ohne Haftvermittler einschließlich Flüssigkeiten, wie z. B. Aminen, und Zusätzen, wie z. B. hydratisierter Kalk oder Zement, herangezogen werden.
Bei Anwendung des Flaschen-Rollverfahrens wird die Affinität durch visuelle Beurteilung des Umhüllungs¬grades unverdichteter bitumenumhüllter Gesteinskörner nach Beanspruchung durch mechanisches Rühren in Anwesenheit von Wasser angegeben.
ANMERKUNG 1 Die Flaschen-Rollprüfung ist eine einfache, aber subjektive Prüfung, die für Routineüberprüfungen geeignet ist. Sie ist nicht auf stark abriebanfällige Gesteinskörnungen anwendbar.
Bei Anwendung des statischen Prüfverfahrens wird die Affinität durch visuelle Beurteilung des Umhüllungsgrades unverdichteter bitumenumhüllter Gesteinskörner nach Lagerung in Wasser angegeben.
ANMERKUNG 2 Die statische Prüfung ist eine einfache, aber subjektive Prüfung, die grundsätzlich weniger genau ist, aber auch auf Gesteinskörnungen mit hohem Polierwert angewendet werden kann.
Bei Anwendung des Prüfverfahrens des Ablösens in siedendem Wasser wird die Affinität durch Bestimmung des Umhüllungsgrades unverdichteter bitumenumhüllter Gesteinskörnungen nach erfolgtem Eintauchen in siedendem Wasser unter festgelegten Bedingungen angegeben.
ANMERKUNG 3 Die Prüfung des Ablösens in siedendem Wasser ist eine objektive Prüfung und von hoher Präzision. Es handelt sich dabei jedoch um eine recht spezielle Prüfung, die höhere Anforderungen an die Fähigkeiten der Prüfer stellt und die Verwendung von Chemikalien als Reagenzien erfordert. Letzteres könnte auch bedeuten, besondere Vorsichts¬maßnahmen im Hinblick auf die Einhaltung der Gesundheits und Sicherheitsvorschriften treffen zu müssen.
ANMERKUNG 4 Das Prüfverfahren des Ablösens in siedendem Wasser ist auf alle Kombinationen aus Bindemittel und Gesteinskörnung anwendbar, deren Gesteinskörnung im natürlichen Zustand kalkreich, silicium kalkreich oder siliciumreich ist.
Mélanges bitumineux - Méthodes d'essai - Partie 11 : Détermination de l'affinité granulat-bitume
Ce document spécifie des modes opératoires pour déterminer l’affinité entre granulat et bitume et son influence sur la susceptibilité de la combinaison au désenrobage. Cette propriété est plutôt destinée à aider le concepteur à formuler le mélange qu’à représenter un essai pour épreuve de formulation. La susceptibilité au désenrobage, telle que déterminée par ces modes opératoires, est une mesure indirecte de la capacité du liant à adhérer à différents granulats ou de différents liants à adhérer à un granulat donné. Les modes opératoires peuvent également être utilisés pour évaluer l’effet de l’eau sur une combinaison granulats-liant avec ou sans dope d’adhésivité que ce soit des liquides comme les amines, des fillers comme la chaux hydratée ou le ciment.
Dans la méthode « de la bouteille tournante », l’affinité est exprimée par le degré d’enrobage de bitume, déterminé visuellement, de granulats minéraux enrobés de bitume, non compactés, après une agitation mécanique en présence d’eau.
NOTE 1 L’essai « de la bouteille tournante » est simple mais subjectif et approprié pour des essais de routine. Il ne convient pas pour les granulats hautement abrasifs.
Dans la méthode de l’essai statique, l’affinité est exprimée par le degré d’enrobage de bitume, déterminé visuellement, de granulats minéraux enrobés de bitume, non compactés après stockage dans l’eau.
NOTE 2 L’essai statique est simple quoique subjectif ; il est généralement moins précis mais il est approprié aux granulats à haut coefficient de polissage accéléré.
Dans la méthode de l’essai de désenrobage à l’eau bouillante, l’affinité est exprimée par le degré d’enrobage de bitume de granulats minéraux enrobés de bitume, non compactés après immersion dans l’eau bouillante dans des conditions spécifiées.
NOTE 3 L’essai de désenrobage à l’eau bouillante est objectif et très précis. Toutefois, il s’agit d’un essai plus spécialisé car il exige un personnel plus qualifié et il utilise des réactifs chimiques. Ce dernier point peut aussi impliquer des considérations supplémentaires en matière d’hygiène et de sécurité.
NOTE 4 Le mode opératoire de l’essai de désenrobage à l’eau bouillante peut être utilisé pour toute combinaison granulats-liant dans laquelle les granulats minéraux sont de nature calcaire, silico-calcaire ou siliceuse.
Bitumenske zmesi - Preskusne metode - 11. del: Ugotavljanje sprijemljivosti med agregatom in bitumnom
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 12697-11:2012
Bitumenske zmesi - Preskusne metode - 11. del: Ugotavljanje sprijemljivosti med
agregatom in bitumnom
Bituminous mixtures - Test methods - Part 11: Determination of the affinity between
aggregate and bitumen
Asphalt - Prüfverfahren - Teil 11: Bestimmung der Affinität von Gesteinskörnungen und
Bitumen
Mélanges bitumineux - Essais pour - Partie 11 : Détermination de la affinité entre
granulation et bitume
Ta slovenski standard je istoveten z: EN 12697-11:2020
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12697-11
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-11:2012
English Version
Bituminous mixtures - Test methods - Part 11:
Determination of the affinity between aggregate and
bitumen
Mélanges bitumineux - Méthodes d´essai - Partie 11 : Asphalt - Prüfverfahren - Teil 11: Bestimmung der
Détermination de l'affinité granulat-bitume Affinität von Gesteinskörnungen und Bitumen
This European Standard was approved by CEN on 18 November 2019.
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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12697-11:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 7
5 Rolling bottle method . 8
5.1 Equipment . 8
5.2 Preparation of test specimens . 11
5.2.1 Aggregate . 11
5.2.2 Bitumen . 12
5.2.3 Mixing aggregate and bitumen . 12
5.3 Conditioning . 13
5.4 Procedure. 14
5.5 Calculation and expression of results . 15
5.6 Test report . 15
5.7 Precision . 16
6 Static method . 17
6.1 Equipment . 17
6.1.1 Flat bottomed container . 17
6.1.2 Mixing bowl . 17
6.1.3 Heating apparatus. 17
6.2 Solvent and other materials . 17
6.3 Preparation of test specimens . 17
6.3.1 Aggregate . 17
6.3.2 Bitumen . 17
6.4 Procedure. 17
6.5 Calculation and expression of results . 18
6.6 Test report . 18
6.7 Precision . 19
7 Boiling water stripping method . 19
7.1 General . 19
7.2 Equipment and materials . 19
7.3 Sample preparation . 21
7.3.1 Aggregate . 21
7.3.2 Bitumen . 21
7.3.3 Mixing aggregate and bitumen . 21
7.4 Conditioning . 22
7.5 Test procedure . 22
7.5.1 Establishing the acid/base equivalence factor . 22
7.5.2 Establishing the calibration curve . 22
7.5.3 Stripping test . 24
7.6 Calculation and expression of results . 25
7.6.1 Determination of the calibration curve . 25
7.6.2 Calculation of the degree of bitumen coverage . 26
7.7 Test report . 26
7.8 Precision . 26
Annex A (informative) Guidance for estimation of the degree of bitumen coverage . 27
Bibliography . 28
European foreword
This document (EN 12697-11:2020) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by BSI.
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 August 2020, and conflicting national standards shall
be withdrawn at the latest by August 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12697-11:2012.
The following is a list of significant technical changes since the previous edition:
— the title no longer makes the method exclusively for hot mix asphalt;
— [ge] editorial update according to current standard template;
— [ge] NOTEs adjusted according to ISO/IEC Directives – Part 2:2016,24.5;
— [3.5] chemical expression for molar concentration updated. The definition “Normality, N” amended
to molarity. Amended description of the definition and change of unit to mol/l;
— [5.1.5] alternative procedure for addition of adhesion agent by using a syringe introduced. Change
of title for 5.1.5. The following clauses renumbered accordingly;
— [5.1.13] clarified that the speed requirements refer to bottle rather than machine rotation;
— [5.2.3.4] clarified procedure for the addition of liquid adhesion agents with time limits including
description for addition of small amounts (less than 0,4 g). Clarified that the weighed amount of
adhesive agent shall be reported in the test report. Description of the evaluation of heat stability of
adhesion agents introduced;
— [5.2.3.6] Formula (1) clarified. Keys added;
— [5.4.1] editorial: clarified and simplified description;
— [5.6] bullet e): completed with “amount”;
— [6.4.5] NOTE clarified that additional procedure has to be mentioned in the test report;
— [7.1 to 7.6.2.1] chemical expressions for concentration, “N”, amended to mol/l in relevant places in
line with changed definition in 3.5;
— [7.2.12] last paragraph clarified regarding concentration;
— [7.6.1.1] Formula (4) clarified. Keys added.
A list of all parts in the EN 12697 series can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document specifies procedures for the determination of the affinity between aggregate and
bitumen and its influence on the susceptibility of the combination to stripping. This property is
intended to be of assistance to the designer for mixture design rather than as a type test. Susceptibility
to stripping, as determined by these procedures, is an indirect measure of the power of a binder to
adhere to various aggregates, or of various binders to adhere to a given aggregate. The procedures can
also be used to evaluate the effect of moisture on a given aggregate-binder combination with or without
adhesion agents including liquids, such as amines, and fillers, such as hydrated lime or cement.
In the rolling bottle method, the affinity is expressed by visual registration of the degree of bitumen
coverage on uncompacted bitumen-coated mineral aggregate particles after influence of mechanical
stirring action in the presence of water.
NOTE 1 The rollin
...
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