SIST EN 12274-4:2018

SLOVENSKI STANDARD
oSIST prEN 12274-4:2016
01-junij-2016
Tankoplastne prevleke po hladnem postopku - Preskusne metode - 4. del:
Ugotavljanje kohezije zmesi
Slurry surfacing - Test methods - Part 4: Determination of cohesion of the mix
Dünne Asphaltschichten in Kaltbauweise - Prüfverfahren - Teil 4: Bestimmung der
Kohäsion von Schlämmen
Matériaux bitumineux coulés à froid - Méthode d'essai - Partie 4 : Détermination de la
cohésion du mélange
Ta slovenski standard je istoveten z: prEN 12274-4
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
oSIST prEN 12274-4:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12274-4:2016

---------------------- Page: 2 ----------------------
oSIST prEN 12274-4:2016


DRAFT
EUROPEAN STANDARD
prEN 12274-4
NORME EUROPÉENNE

EUROPÄISCHE NORM

April 2016
ICS 93.080.20 Will supersede EN 12274-4:2003
English Version

Slurry surfacing - Test methods - Part 4: Determination of
cohesion of the mix
Matériaux bitumineux coulés à froid - Méthode d'essai Dünne Asphaltschichten in Kaltbauweise -
- Partie 4 : Détermination de la cohésion du mélange Prüfverfahren - Teil 4: Bestimmung der Kohäsion von
Schlämmen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 227.

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, 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.

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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12274-4:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 12274-4:2016
prEN 12274-4:2016 (E)
Contents Page

European foreword . 3
1 Scope . 4
2 Normative References . 4
3 Terms and definitions . 4
4 Principle . 5
5 Materials . 5
5.1 Coarse aggregates and fine aggregates . 5
5.2 Reactive filler . 5
5.3 Emulsion . 5
6 Apparatus . 5
6.1 Apparatus used for preparation of samples . 5
6.2 Apparatus used for testing. 7
6.2.1 Cohesion tester . 7
6.2.2 Air supply, of 700 kPa . 8
7 Calibration of test apparatus (Cohesion Tester) . 9
7.1 Materials . 9
7.2 Procedure for calibration . 10
8 Preparation of sample . 10
8.1 Temperature . 10
8.2 Water . 10
8.3 Aggregates and filler . 10
8.4 Water and additive . 11
8.5 Preparation of the mix . 11
8.6 Sample size . 11
8.7 Curing . 11
9 Test procedure . 12
10 Expression of results . 12
11 Test report . 13
Bibliography . 14


2

---------------------- Page: 4 ----------------------
oSIST prEN 12274-4:2016
prEN 12274-4:2016 (E)
European foreword
This document (prEN 12274-4:2016) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12274-4:2003.
Compared with EN 12274-4:2003, the following changes have been made:
a) The requirement for five samples for test has been removed, permitting the actual number to be
determined in the producer’s method statement. Precision for five and three samples is being
evaluated.
b) The temperature to facilitate drying has been increased from 100 °C to 110 °C.
c) The rubber foot is now specified in terms of IRHD to ISO 48.
d) The possibility of usage of automatic equipment added.
e) Various Notes have been changed to standard text to clarify the requirements and improve
precision.
f) Assessment of the samples (uneven profile, loss of aggregate, etc.) is reported as this affects the
result.
g) Visual assessment of the samples after test is graded according to photographs that have been
added.
This European Standard is one of a series of standards as listed below:
EN 12274-1, Slurry surfacing — Test methods — Part 1: Sampling
EN 12274-2, Slurry surfacing — Test methods — Part 2: Determination of residual binder content
including preparation of samples
EN 12274-3, Slurry surfacing — Test methods — Part 3: Consistency
EN 12274-4, Slurry surfacing — Test methods — Part 4: Determination of cohesion of the mix
EN 12274-5, Slurry surfacing — Test methods — Part 5: Determination of the minimum binder content
and wearing resistance
EN 12274-6, Slurry surfacing — Test methods — Part 6: Rate of application
EN 12274-7, Slurry surfacing — Test methods — Part 7: Shaking abrasion test
EN 12274-8, Slurry surfacing — Test methods — Part 8: Visual assessment of defects
3

---------------------- Page: 5 ----------------------
oSIST prEN 12274-4:2016
prEN 12274-4:2016 (E)
1 Scope
This European Standard specifies a test method for determining the minimum cohesion of a slurry
surfacing mixture, which enables the set time and trafficability time to be determined.
This European Standard applies to slurry surfacing (including microsurfacing) to be used in surface
layers for roads, airfields and other trafficked areas.
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.
ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD
and 100 IRHD)
ISO 6344-2, Coated abrasives — Grain size analysis — Part 2: Determination of grain size distribution of
macrogrits P12 to P220
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
set
end of the non-reversible process in a slurry surfacing when the emulsion coalescence takes place
Note 1 to entry: The coalescence of an emulsion is the non-reversible phase starting from the beginning of the
breaking of the emulsion to the total setting when the bitumen emulsion reverts to bitumen in presence of a
mineral.
Note 2 to entry: After the set of a slurry surfacing: it is not poss
...