prEN 15626

SLOVENSKI STANDARD
01-julij-2024
Bitumen in bitumenska veziva - Določanje obstojnosti rezanih in fluksiranih
bitumenskih veziv s preskusom potapljanja v vodo - Metoda z agregatom
Bitumens and bituminous binders - Determination of adhesivity of cut-back and fluxed
bituminous binders by water immersion test - Aggregate method
Bitumen und bitumenhaltige Bindemittel - Bestimmung des Haftverhaltens von
verschnittenen und gefluxten bitumenhaltigen Bindemitteln bei Wasserlagerung -
Verfahren mit Gesteinskörnung
Bitumes et liants bitumineux - Détermination de l'adhésivité des liants bitumineux
fluidifiés et fluxés par l'essai d'immersion dans l'eau - Méthode utilisant des granulats
Ta slovenski standard je istoveten z: prEN 15626
ICS:
75.140 Voski, bitumni in drugi naftni Waxes, bituminous materials
proizvodi and other petroleum products
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2024
ICS 93.080.20 Will supersede EN 15626:2016
English Version
Bitumens and bituminous binders - Determination of
adhesivity of cut-back and fluxed bituminous binders by
water immersion test - Aggregate method
Bitumes et liants bitumineux - Détermination de Bitumen und bitumenhaltige Bindemittel -
l'adhésivité des liants bitumineux fluidifiés et fluxés Bestimmung des Haftverhaltens von verschnittenen
par l'essai d'immersion dans l'eau - Méthode utilisant und gefluxten bitumenhaltigen Bindemitteln bei
des granulats Wasserlagerung - Verfahren mit Gesteinskörnung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 336.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15626:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Reagents and materials . 5
6 Apparatus . 5
7 Sampling . 6
8 Procedure. 6
8.1 Preparation of aggregates and binders . 6
8.2 Procedure for “high viscosity” binders . 8
8.3 Procedure for “low viscosity” cut-back and fluxed bituminous binders. 8
9 Expression of results . 9
10 Precision . 9
11 Test report . 10
Annex A (informative) Guidance for the marking of coated surface area . 11
Bibliography . 12

European foreword
This document (prEN 15626:2024) has been prepared by Technical Committee CEN/TC 336 “Bitumens
and bituminous binders”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15626:2016.
In comparison with the previous edition, the main technical changes are:
— normative references were updated throughout the text (reference to EN 13702 was deleted in 8.1.3,
8.2.1 and 8.3.1);
— removal of the use of a heating plate or heating device when mixing aggregates with binder in 8.2.2
and 8.3.2;
— the binder is now poured onto the aggregates and the procedure including prior mixing shall be done
in less than 90 s (see 8.2.2 and 8.3.2);
— curing and conditioning of the coated aggregate is conducted within a heat resistant glass dish and
in the form of a monolayer of materials instead of being placed into a beaker (see 8.2.2, 8.3.3 and
8.3.4);
— assessment is conducted under water (which can be replaced if dirty) and with the help of an
appropriate lamp (see 8.3.5);
— tolerance on the conditioning time (see 8.2.3, 8.3.3 et 8.3.4) is reduced from ±4 h to ±2 h.
1 Scope
This document specifies a method for the determination of the adhesivity of cut-back and fluxed
bituminous binders coated onto aggregate when immersed in water.
The method can be used with a reference aggregate. In that case, it measures the intrinsic adhesion
behaviour of a cut-back and fluxed bituminous binder. The method can also be used with a specific
aggregate as used on a job site.
WARNING — The use of this document can involve hazardous materials, operations and equipment. This
document does not purport to address all of the safety problems associated with its use. It is the
responsibility of the user of this document to establish appropriate safety and health practices and to
determine the applicability of regulatory limitations prior to use. For environmental reasons and to
reduce emissions to air, water and soil, it is recommended to limit the use of products, solvents and
energy to the minimum required for a valid test result.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. 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 12594, Bitumen and bituminous binders — Preparation of test samples
EN 12597, Bitumen and bituminous binders — Terminology
EN 12846-2, Bitumen and bituminous binders — Determination of efflux time by the efflux viscometer - Part
2: Cut-back and fluxed bituminous binders
EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other
trafficked areas
EN 13302, Bitumen and bituminous binders — Determination of dynamic viscosity of bituminous binder
using a rotating spindle apparatus
EN 15322, Bitumen and bituminous binders — Framework for specifying cut-back and fluxed bituminous
binders
EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12597 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org
3.1
adhesion
ability of a binder to coat the surface of an aggregate and to remain bonded over time in the presence of
water
3.2
adhesivity
qualitative assessment of the adhesion (3.1)
3.3
ambient temperature
temperature between 18 °C and 28 °C
4 Principle
The binder is mixed thoroughly with a dry and clean aggregate under specified temperature conditions.
After specified pre-conditioning procedures depending on the viscosity of the binder, the mixture is
immersed in water. After a given time under specified conditions, the percentage of the aggregate surface
covered with binder is assessed visually.
Conformity to the adhesivity requirement, in accordance with EN 15322, shall be assessed while
measuring the binder adhesion with a reference aggregate.
5 Reagents and materials
5.1 Aggregate, as light in colour as possible, being either a reference aggregate or an aggregate to be
used on a specific job site. This aggregate shall either pass through:
— a sieve (see Reference [1]) having a mesh size of 10 mm and be retained on a sieve having a mesh
size of 6,3 mm (sieve sizes belonging to the [basic set plus set 2] sizes specified in EN 13043);
— a sieve having a mesh size of 11 mm and be retained on a sieve having a mesh size of 8 mm (sieve
sizes belonging to the [basic set plus set 1] sizes specified in EN 13043).
NOTE Each country can define petrographically its own reference aggregates, for instance, in a national
informative annex.
5.2 Water, distilled or deionized, conforming to quality 3 of EN ISO 3696:1995.
5.3 Cleaning agents, conventionally used in a laboratory.
6 Apparatus
6.1 Ventilated oven, capable of maintaining a temperature of 60 °C with a maximum permissible
measurement error of ±3 °C.
Temperature shall be checked in the surroundings of the sample(s).
6.2 Ventilated oven, capable of maintaining any temperature in the range of [30 to 150] °C with a
maximum permissible measurement error of ±5 °C.
Temperature shall be checked in the surroundings of the sample(s).
6.3 Spatula.
6.4 Heat resistant dishes, approximately 150 mm to 200 mm in diameter.
6.5 Two heat resistant glass dishes with cover, with a minimum surface area of 300 cm and a
minimum inner height of 20 mm.
NOTE A 200 mm diameter Petri dish with a minimum inner height of 20 mm satisfies these conditions.
6.6 Balance, having a suitable measuring range and having a maximum permissible measurement
error of ±1 g within the testing range.
6.7 Lid or Aluminium foil, suitable for use as a loose cover.
7 Sampling
Sample the test material in accordance with EN 58. Prepare the test samples in accordance with
EN 12594.
8 Procedure
8.1 Preparation of aggregates and binders
8.1.1 Wash the aggregate (5.1) with water (5.2) and dry it in the ventilated oven (6.2) at (110 ± 5) °C
until constant mass has been achieved.
8.1.2 The quantities of aggregates needed for the tests to be carried out under 8.2 and 8.3 shall be
weighed into heat resistant dish(es) (6.4) by batches of (200 ± 2) g or (400 ± 4) g.
Depending on the binder to be tested, bring the aggregates in the dish(es) to be used for the mixing
procedure to the temperature indicated in Table 1 and maintain this temperature in the ventilated oven
(6.2) for about 2 h.
8.1.3 A binder sample of a minimum amount of 200 g shall be prepared in accordance with EN 12594
and brought to the temperature indicated in Table 1. The efflux time shall be determined in accordance
with EN 12846-2 and dynamic viscosity at 60 °C in accordance with EN 13302.
For well-known binders, it is not necessary to measure the efflux time or the dynamic viscosity to
determine the heating temperature prior testing.
Cover the container with aluminium foil or a loose fitting lid (6.7) to minimize the loss of volatiles during
heating.
Leave the binder in the ventilated oven (6.2) long enough to ensure that it reaches the temperature given
in Table 1. Care shall be taken to avoid local overheating.
Binder formulated with an adhesion improver should be tested under the representative conditions of
its use.
NOTE The conditions of use of this binder can be, for example, a binder stored one or several days in a closed
container at its typical storage temperature, taking all precautions so that the evolution of the binder for the test is
representative of factory storage.
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