EN 12274-7:2005

SLOVENSKI STANDARD
01-julij-2005
Obnovitev površine z emulzijo – 7. del: Preskus obrabe s tresenjem
Slurry surfacing - Test methods - Part 7: Shaking abrasion test
Dünne Asphaltschichten in Kaltbauweise - Prüfverfahren - Teil 7: Schüttel-Abriebprüfung
Matériaux bitumineux coulés a froid - Méthodes d'essai - Partie 7 : Essai d'abrasion par
agitation
Ta slovenski standard je istoveten z: EN 12274-7:2005
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.

EUROPEAN STANDARD
EN 12274-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2005
ICS 93.080.20
English version
Slurry surfacing - Part 7: Shaking abrasion test
Matériaux bitumineux coulés à froid - Partie 7 : Essai Dünne Asphaltschichten in Kaltbauweise - Teil 7: Schüttel-
d'abrasion par agitation Abriebprüfung
This European Standard was approved by CEN on 17 April 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12274-7:2005: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Principle.4
4 Materials and equipment .4
5 Preparation for the test.8
5.1 Preparation of specimens .8
5.1.1 General .8
5.1.2 Grading curve for aggregates .8
5.1.3 Binder content of the mix.8
5.2 Production of the mix .9
5.3 Production of test specimens .10
6 Test procedure .10
6.1 Determination of water absorption.10
6.1.1 Water absorption test .10
6.1.2 Equations for water absorption test.11
6.2 Determination of abrasion.12
6.2.1 Abrasion test .12
6.2.2 Equation for abrasion test.13
7 Record of results.13
Annex A (informative) Test record and report expression of results .14

Bibliography.15

Foreword
This document (EN 12274-7:2005) has been prepared by Technical Committee CEN/TC 227 “Road materials”,
the secretariat of which is held by DIN.
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 November 2005, and conflicting national standards shall be withdrawn
at the latest by December 2005.
This document describes a test method for determining the suitability and compatibility of aggregates and
emulsions for slurry surfacings.
This European Standard is one of a series of standards as listed below:
EN 12274-1, Slurry surfacing − Test methods − Part 1: Sampling for binder extraction.
EN 12274-2, Slurry surfacing − Test methods − Part 2: Determination of residual binder content.
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 wearing.
EN 12274-6, Slurry surfacing − Test methods − Part 6: Rate of application.
EN 12274-7, Slurry surfacing − Test methods − Part 7: Shaking abrasion test.
prEN 12274-8, Slurry surfacing − Test methods − Part 8: Visual assessment.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This document specifies a test method for determining the suitability of aggregates and cationic emulsions for
slurry surfacings and, where appropriate, the effect of individual additives.
This document applies to slurry surfacings.
NOTE 1 The procedure uses a standardized mix composition but the method may also be used to assess the effect
of variations in the grading and binder content but this use is not part of the standard.
NOTE 2 Additives affecting the breaking behaviour may also be tested under standardised conditions. The test may
also be used to study the effect of a particular type of bitumen or emulsifier.
2 Normative references
The following referenced documents are indispensable for the application 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 12697-6:2003, Bituminous mixtures — Test methods for hot mix asphalt — Part 6: Determination of bulk
density of bituminous specimens
3 Principle
The shaking abrasion test determines the water sensitivity of mixes for slurry surfacings consisting of 0/2 mm
aggregate and cationic emulsion for slurry surfacing.
The test measures the loss of material from standard specimens when cylinders of compacted material are
placed in water filled cylinders which are rotated end over end in a suitable device.
The test uses mixtures for slurry surfacing using the materials to be used for producing slurry surfacing but
made to a standard grading and binder content prepared at room temperature.
Four 25 mm high cylindrical specimens each with a diameter of 30 mm and prepared using a standardized
mix for slurry surfacing are tested in each set of tests. The specimens are statically compacted and then
conditioned by storage in water in a vacuum prior to testing.
4 Materials and equipment
4.1 Plastic, glass or porcelain containers with capacities of approximately 0,5 l.
4.2 Stirring spatula (or metal fork).
4.3 Balance accurate to ±0,1 g.
4.4 Warm air dryer.
4.5 Compaction moulds with bedplates (at least 4 are required for each test) (see Figure 1).
4.6 Compaction plugs, one for each compaction mould (see Figure 2).
4.7 Funnel (see Figure 3).
Press with a load range of 10 kN and an advance speed of 20 mm/min.
4.8
4.9 Shaking device (see Figure 4).
4.10 Shaking cylinders (see Figure 5).
4.11 Vacuum desiccator
4.12 Vacuum gauge accurate to 0,1 kPa.
4.13 Chamois leather cloths
NOTE Information on accuracy and calibration of equipment may be found in EN 12697-38.
Dimensions in millimetres
Key
1 Marking to show direction of filling
2 Compaction mould
a Drilling, ∅ 30
b Conical widening from ∅30 to ∅31
3 Bed plate
Figure 1 — Compaction mould (tolerances ±±±± 0,1)
Dimensions in millimetres
Figure 2 — Compaction mould plug (tolerances ±± 0,1)
±±
Dimensions in millimetres
Figure 3 — Example for a funnel for filling the mould (many other designs are suitable) (tolerances ±±±±
0,1)
Dimensions in millimetres
Key
1 Axis of rotation
Figure 4 — General view of cylinder construction
NOTE The cylinder will be replaced when the diameter has worn to 61,0 mm.
Dimensions in millimetres
Key
1 Rubber gasket
Figure 5 — Cylinder cap (tolerances ±±±± 0,1)
5 Preparation for the test
5.1 Preparation of specimens
5.1.1 General
The mixture under test shall be composed of 0/2 mm aggregate, emulsion for slurry surfacing, water, cement
as additive and any other additions.
5.1.2 Grading curve for aggregates
The standardized grading of the aggregates in Table 1 shall be used.
Table 1 — Grading curve
Column 1 2 3
Lower size of aggregate Upper size of aggregate Mass of fraction used in the
Line fraction fraction mixture
mm mm % by mass
1 0 0,125
23 ± 0,5
2 0,125 0,25
11 ± 0,5
3 0,25 0,5
27 ± 0,5
4 0,5 1,0 21 ± 0,5
5 1,0 2,0 18 ± 0,5
NOTE  One part cement used in normal production (CEM I 32,5 R is commonly used) shall be added to
100 parts aggregate.
5.1.3 Binder content of the mix
The binder content of the dry mixture depends on the density of the aggregate used. The binder content of the
slurry surfacing after removal of the water shall be selected from Figure 6 (or calculated in accordance with
Equation (1)).
Key
X B = binder content of the dry product, in percentage by mass (%)
Y Density of the aggregate, in grams per cubic centimetre (g/cm )
1 Example for aggregate 1
2 Example for aggregate 2
3 Example for aggregate 3
4 Example for aggregate 4
NOTE The aim is to ensure comparability of the results for different types of aggregate for identical volumetric
ratios as otherwise the properties of the binder will affect those of the mix (especially with regard to affinity and
swelling properties). The diagram shows typical examples of common aggregates.
B = 16,09 – 3,125 × ρ (1)
where
B is the binder content of the dry mixture as a proportion of the density of the dry aggregate, in
percentage by mass (%);
ρ is the density of the aggregate, in grams per cubic centimetre (g/cm ).
Figure 6 — Determination of target binder content as a function of the density of the aggregates
5.2 Production of the mix
The quantity of emulsion-bound 0/2 mix required for a series of four specimens shall be produced manually in
a single operation.
The materials used in the mix shall be the same as those intended for use on site. The quantities to be used
for each set of four specimens are:
 (200 ± 2) g of the dry aggregate prepared to the standard grading, m ;
agg
 (2 ± 0,1) g of cement, m ;
cem
 w g potable water, usually (40 ± 0,5) % of the mass of dry aggregate;
An empirical value for the amount of water to be added to the mix is 40g. The amount is dependent on the
type of emulsion used and shall be determined by preliminary testing. A mixture time of at least 2 min shall be
measured.
m g emulsion for slurry surfacing in accordance with Equation (2):
(m + m ) × B
agg cem
m = × 100 (2)
(100 − B) × B
emuls
where
m is the mass of emulsion for slurry surfacing to be used, in grams (g);
m is the dry mass of aggregate in the mixture, in grams (g);

agg
m is the mass of cement in the mixture, in grams (g);
cem
B is the target binder content of the dry product, in percentage by mass (%);
B is the binder content of the emulsion for slurry surfacing, in percentage by mass (%).
emuls
The materials shall be placed in the stirring vessel in the following order:
Add the cement to the aggregate and mix; add the water
...