oSIST prEN 12697-22:2013

SLOVENSKI STANDARD
oSIST prEN 12697-22:2013
01-december-2013
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Bituminous mixtures - Test methods for hot mix asphalt - Part 22: Wheel tracking
Asphalt - Prüfverfahren für Heißasphalt - Teil 22: Spurbildungstest
Mélanges bitumineux - Méthodes d'essai pour mélange hydrocarboné à chaud - Partie
22 : Essai d’orniérage
Ta slovenski standard je istoveten z: prEN 12697-22
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
oSIST prEN 12697-22:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12697-22:2013

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oSIST prEN 12697-22:2013


EUROPEAN STANDARD
DRAFT
prEN 12697-22
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2013
ICS 93.080.20 Will supersede EN 12697-22:2003+A1:2007
English Version
Bituminous mixtures - Test methods for hot mix asphalt - Part
22: Wheel tracking
Mélanges bitumineux - Méthodes d'essai pour mélange Asphalt - Prüfverfahren für Heißasphalt - Teil 22:
hydrocarboné à chaud - Partie 22 : Essai d'orniérage Spurbildungstest
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
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12697-22:2013: E
worldwide for CEN national Members.

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Contents
Page
Foreword .4
1 Scope .7
2 Normative references .7
3 Terms and definitions .7
4 Symbols and abbreviated terms .8
5 Principle .9
6 Apparatus .9
6.1 Large size devices .9
6.1.1 Device simulating a rolling load which shall include .9
6.1.2 Mould(s) . 10
6.1.3 Depth gauge . 10
6.1.4 Ventilated enclosure . 10
6.1.5 Temperature sensors . 10
6.1.6 Temperature monitoring indicator . 10
6.1.7 Steel supporting plate . 10
6.1.8 Non-stick chemical . 10
6.2 Extra large Devices . 10
6.2.1 Device simulating a rolling load which shall include . 10
6.2.2 Moulds . 11
6.2.3 Depth gauge . 11
6.2.4 Ventilated enclosure . 11
6.2.5 Temperature sensors . 11
6.2.6 Temperature monitoring indicator . 11
6.3 Small size devices . 11
6.3.1 Wheel-tracking apparatus . 11
6.3.2 Means for temperature control . 12
6.3.3 Straightedge . 12
6.3.4 Callipers . 12
6.3.5 Moulds . 12
6.4 Small-size devices for use with cores . 12
6.4.1 General . 12
6.4.2 Abrasive disc circular saw . 12
6.4.3 Core clamping assembly . 13
6.4.4 Cleansing solvent . 13
6.4.5 Holding medium . 13
6.4.6 Containers . 13
6.4.7 Spirit level . 13
7 Sampling and sample preparation . 13
7.1 Sampling and manufacture . 13
7.1.1 Laboratory prepared samples . 13
7.1.2 Specimen extracted from pavements . 14
7.2 Thickness and surface regularity. 15
7.2.1 Large and extra-large size devices . 15
7.2.2 Small size devices . 15
7.3 Transport and storage of unmounted specimens . 15
7.4 Sample preparation . 16
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7.4.1 Laboratory-prepared specimen . 16
7.4.2 Specimen extracted from pavements . 16
7.5 Storage . 16
8 Procedure for carrying out a single measurement . 17
8.1 Large size devices . 17
8.1.1 Pneumatic tyre . 17
8.1.2 Conditioning run . 17
8.1.3 Initial readings . 17
8.1.4 Temperature conditioning . 17
8.1.5 Execution of test . 17
8.1.6 Temperature monitoring . 17
8.1.7 Repeat runs . 17
8.2 Extra-large size device . 18
8.2.1 Pneumatic tyre . 18
8.2.2 Temperature conditioning . 18
8.2.3 Execution of test . 18
8.2.4 Temperature monitoring . 18
8.2.5 Repeat runs . 18
8.3 Small size devices . 18
8.3.1 Temperature conditioning . 18
8.3.2 Specimen fixing . 18
8.3.3 Conditioning runs . 19
8.3.4 Procedure A . 19
8.3.5 Procedure B . 19
9 Calculation and expression of results . 19
9.1 Large size devices . 19
9.1.1 Calculation of the measured proportional rut depth . 19
9.1.2 Graph . 20
9.1.3 Calculation of the mean value P . 20
9.1.4 Calculation of the test temperature . 20
9.2 Extra-large size device . 20
9.2.1 Calculation of the measured proportional rut depth . 20
9.2.2 Calculation of the mean value P . 20
XL
9.2.3 Calculation of the test temperature . 20
9.3 Small size devices . 21
9.3.1 Procedure A . 21
9.3.2 Procedure B in air . 22
9.3.3 Procedure B in water . 23
10 Test report . 23
10.1 Obligatory information . 23
10.1.1 Obligatory information for each test specimen . 23
10.1.2 Obligatory information for laboratory prepared test specimens. 24
10.1.3 Obligatory information for test specimens taken from a pavement by coring . 24
10.1.4 Obligatory information for test specimens tested on large or extra large devices . 24
10.1.5 Obligatory information for test specimens tested on small size devices . 24
10.2 Complementary information . 25
11 Precision. 25
11.1 General . 25
11.2 Laboratory prepared samples, proportional rut depth, large size devices . 25
11.3 Samples cored from a pavement and laboratory prepared samples, wheel-tracking rate,
small-size devices, conditioning in air . 25
Bibliography . 30


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Foreword
This document (prEN 12697-22:2013) 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 12697-22:2003+A1:2007.
The following is a list of significant technical changes since the previous edition:
 vibratory compactor excluded as a method of sample preparation;
 units of development of ruts unified to µm/cycle for both procedures using the small device;
 moulds added to the list of equipment;
 requirement added for storing samples on a flat surface;
 range of time for conditioning prior to testing extended;
 Equation (7) corrected;
 type of roller compactor required to be reported.
This European Standard is one of a series of standards as listed below:
EN 12697-1, Bituminous mixtures — Test methods for hot mix asphalt — Part 1: Soluble binder content
EN 12697-2, Bituminous mixtures — Test methods for hot mix asphalt — Part 2: Determination of particle size
distribution
EN 12697-3, Bituminous mixtures — Test methods for hot mix asphalt — Part 3: Bitumen recovery: Rotary
evaporator
EN 12697-4, Bituminous mixtures — Test methods for hot mix asphalt — Part 4: Bitumen recovery:
Fractionating column
EN 12697-5, Bituminous mixtures — Test methods for hot mix asphalt — Part 5: Determination of the
maximum density
EN 12697-6, Bituminous mixtures — Test methods for hot mix asphalt — Part 6: Determination of bulk density
of bituminous specimens
EN 12697-7, Bituminous mixtures — Test methods for hot mix asphalt — Part 7: Determination of bulk density
of bituminous specimens by gamma rays
EN 12697-8, Bituminous mixtures — Test methods for hot mix asphalt — Part 8: Determination of void
characteristics of bituminous specimens
EN 12697-10, Bituminous mixtures — Test methods for hot mix asphalt — Part 10: Compactibility
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EN 12697-11, Bituminous mixtures — Test methods for hot mix asphalt — Part 11: Determination of the
affinity between aggregates and bitumen
EN 12697-12, Bituminous mixtures — Test methods for hot mix asphalt — Part 12: Determination of the water
sensitivity of bituminous specimens
EN 12697-13, Bituminous mixtures — Test methods for hot mix asphalt — Part 13: Temperature
measurement
EN 12697-14, Bituminous mixtures — Test methods for hot mix asphalt — Part 14: Water content
EN 12697-15, Bituminous mixtures — Test methods for hot mix asphalt — Part 15: Determination of the
segregation sensitivity
EN 12697-16, Bituminous mixtures — Test methods for hot mix asphalt — Part 16: Abrasion by studded tyres
EN 12697-17, Bituminous mixtures — Test methods for hot mix asphalt — Part 17: Particle loss of porous
asphalt specimen
EN 12697-18, Bituminous mixtures — Test methods for hot mix asphalt — Part 18: Binder drainage
EN 12697-19, Bituminous mixtures — Test methods for hot mix asphalt — Part 19: Permeability of specimen
EN 12697-20, Bituminous mixtures — Test methods for hot mix asphalt — Part 20: Indentation using cube or
cylindrical specimen
EN 12697-21, Bituminous mixtures — Test methods for hot mix asphalt — Part 21: Indentation using plate
specimens
EN 12697-22, Bituminous mixtures — Test methods for hot mix asphalt — Part 22: Wheel tracking
EN 12697-23, Bituminous mixtures — Test methods for hot mix asphalt — Part 23: Determination of the
indirect tensile strength of bituminous specimens
EN 12697-24, Bituminous mixtures — Test methods for hot mix asphalt — Part 24: Resistance to fatigue
EN 12697-25, Bituminous mixtures — Test methods for hot mix asphalt — Part 25: Cyclic compression test
EN 12697-26, Bituminous mixtures — Test methods for hot mix asphalt — Part 26: Stiffness
EN 12697-27, Bituminous mixtures — Test methods for hot mix asphalt — Part 27: Sampling
EN 12697-28, Bituminous mixtures — Test methods for hot mix asphalt — Part 28: Preparation of samples for
determining binder content, water content and grading
EN 12697-29, Bituminous mixtures — Test methods for hot mix asphalt — Part 29: Determination of the
dimensions of a bituminous specimen
EN 12697-30, Bituminous mixtures — Test methods for hot mix asphalt — Part 30: Specimen preparation by
impact compactor
EN 12697-31, Bituminous mixtures — Test methods for hot mix asphalt — Part 31: Specimen preparation by
gyratory compactor
EN 12697-32, Bituminous mixtures — Test methods for hot mix asphalt — Part 32: Laboratory compaction of
bituminous mixtures by vibratory compactor
EN 12697-33, Bituminous mixtures — Test methods for hot mix asphalt — Part 33: Specimen prepared by
roller compactor
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EN 12697-34, Bituminous mixtures — Test methods for hot mix asphalt — Part 34: Marshall test
EN 12697-35, Bituminous mixtures — Test methods for hot mix asphalt — Part 35: Laboratory mixing
EN 12697-36, Bituminous mixtures — Test methods for hot mix asphalt — Part 36: Determination of the
thickness of a bituminous pavement
EN 12697-37, Bituminous mixtures — Test methods for hot mix asphalt — Part 37: Hot sand test for the
adhesivity of binder on pre-coated chippings for HRA
EN 12697-38, Bituminous mixtures — Test methods for hot mix asphalt — Part 38: Common equipment and
calibration
EN 12697-39, Bituminous mixtures — Test methods for hot mix asphalt — Part 39: Binder content by ignition
EN 12697-40, Bituminous mixtures — Requirements — In situ drainability
EN 12697-41, Bituminous mixtures — Test methods for hot mix asphalt — Part 41: Resistance to deicing
fluids
EN 12697-42, Bituminous mixtures — Test methods for hot mix asphalt — Part 42: Amount of coarse foreign
matter in reclaimed asphalt
EN 12697-43, Bituminous mixtures — Test methods for hot mix asphalt — Part 43: Resistance to fuel
EN 12697-44, Bituminous mixtures – Test methods for hot mix asphalt – Part 44: Crack propagation by
semi-circular bending test
EN 12697-45, Bituminous mixtures – Test methods for hot mix asphalt – Part 45: Saturation ageing tensile
stiffness (SATS) conditioning test
EN 12697-46, Bituminous mixtures — Test methods for hot mix asphalt — Part 46: Low temperature cracking
and properties by uniaxial tension tests
EN 12697-47, Bituminous mixtures — Test methods for hot mix asphalt — Part 47: Determination of the ash
content of natural asphalt
prEN 12697-48, Bituminous mixtures — Test methods for hot mix asphalt — Part 48: Inter-layer bond
1)
strength
prEN 12697-49, Bituminous mixtures — Test methods for hot mix asphalt — Part 49: Determination of friction
1)
after polishing
prTS 12697-50, Bituminous mixtures — Test methods for hot mix asphalt — Part 50: Scuffing resistance of
1)
surface course
For the small-size device, the use of a wheel fitted with a solid rubber tyre is specified. Depending on the
result of on-going research, the use of a steel wheel may be accepted.
This document includes a bibliography.

1) In preparation
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1 Scope
This European Standard describes test methods for determining the susceptibility of bituminous materials to
deform under load. The test is applicable to mixtures with upper sieve size less than or equal to 32 mm.
The tests are applicable to specimens that have either been manufactured in a laboratory or cut from a
pavement; test specimens are held in a mould with their surface flush with the upper edge of the mould.
The susceptibility of bituminous materials to deform is assessed by the rut formed by repeated passes of a
loaded wheel at constant temperature. Three alternative types of device can be used according to this
standard: large-size devices, extra large-size devices and small-size devices. With large-size devices and
extra large-size devices, the specimens are conditioned in air during testing. With small-size devices,
specimens are conditioned, in either air or water.
NOTE Large-size and extra large-size devices are not suitable for use with cylindrical cores.
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.
EN 12697-6, Bituminous mixtures — Test methods for hot mix asphalt — Part 6: Determination of bulk density
of bituminous specimens
EN 12697-7, Bituminous mixtures — Test methods for hot mix asphalt — Part 7: Determination of bulk density
of bituminous specimens by gamma rays
EN 12697-27, Bituminous mixtures — Test methods for hot mix asphalt — Part 27: Sampling
EN 12697-33, Bituminous mixtures — Test methods for hot mix asphalt — Part 33: Specimen preparation by
roller compactor
EN 12697-35, Bituminous mixtures — Test methods for hot mix asphalt — Part 35: Laboratory mixing
ISO 48, Rubber, vulcanised or thermoplastic — Determination of hardness (hardness between 10 IRHD and
100 IRHD)
ISO 7619, Rubber — Determination of indentation hardness by means of pocket hardness meters
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
nominal thickness
for laboratory prepared specimens, target thickness, in millimetres, to which the specimens are to be prepared
3.2
rut depth
reduction in the thickness of a test specimen, in millimetres, caused by repeated passes of a loaded wheel
3.3
test surface
surface of the test specimen on which the loaded wheel runs
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3.4
single test result
value obtained by applying this European Standard, once, to a single test portion
3.5
test portion
for this test, a test portion to represent one material shall consist of a set of:
Table 1 — Minimum set of specimen
Device Minimum set of test specimen
Large or extra-large size device 2
Small size model A testing in air 6
Small size model B testing in air 2
Small size model B testing in water 2
3.6
tyre track
impression of the tyre on a flat surface when a vertical load is applied
3.7
load cycle
two passes (outward and return) of the loaded wheel
4 Symbols and abbreviated terms
Table 2 — Symbols and abbreviated terms
Symbol Definition Unit
m local distance between a reference plane and the j specified location of the upper mm

ij
face of the test piece at the time of the i measurement sequence (large device)
NOTE j varies between 1 and 15.
m initial measurement at the j location —

0j
P measured proportional rut depth calculated as the average depth of a rut at the i %

i
measurement sequence measured at predetermined points or the average of
predetermined stretch (large size device) or the average of predetermined
cross-sections (extra-large device) as a proportion of the thickness of the test
specimen
h specimen thickness equal to the thickness of the course or courses of the test piece mm
in which a rut can form
WTR wheel-tracking rate calculated as the average rate at which the rut depth increases µm/cycle
with time under repeated passes of a loaded wheel of a small size device model A in
air
WTS wheel-tracking slope, calculated as the average rate at which the rut depth increases µm/cycle

W
with repeated passes of a loaded wheel of a small size device model B in water
WTS wheel-tracking slope, calculated as the average rate at which the rut depth increases µm/cycle

AIR
with repeat
...