prEN 13108-9

SLOVENSKI STANDARD
01-junij-2010
Bitumenske zmesi - Specifikacije materialov - 9. del: Zelo tanke plasti
bitumenskega betona (UTLAC)
Bituminous mixtures - Material specifications - Part 9: Bituminous mixture for Ultra-thin
layer Asphalt Concrete (UTLAC)
Asphaltmischgut - Mischgutanforderungen - Teil 9: Asphaltmischgut für extrem dünne
Asphaltbetonschichten (UTLAC)
Mélanges bitumineux - Spécifications des matériaux - Partie 9: Béton bitumineux ultra-
mince (BBUM)
Ta slovenski standard je istoveten z: prEN 13108-9
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
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2010
ICS 93.080.20
English Version
Bituminous mixtures - Material specifications - Part 9:
Bituminous mixture for Ultra-thin layer Asphalt Concrete
(UTLAC)
Mélanges bitumineux - Spécifications des matériaux - Asphaltmischgut - Mischgutanforderungen - Teil 9:
Partie 9: Béton bitumineux ultra-mince (BBUM) Asphaltmischgut für extrem dünne Asphaltbetonschichten
(UTLAC)
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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13108-9:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms, definitions, symbols and abbreviations .7
3.1 Terms and definitions .7
3.2 Symbols and abbreviations .8
4 Requirements for constituent materials .8
4.1 General .8
4.2 Binder .8
4.2.1 General .8
4.2.2 Selection of binder.9
4.2.3 Binder in mixtures with reclaimed asphalt .9
4.3 Aggregate .9
4.3.1 Coarse aggregate.9
4.3.2 Fine aggregate .9
4.3.3 All-in aggregates .9
4.3.4 Added filler .9
4.4 Reclaimed asphalt . 10
4.5 Additives . 10
5 Requirements for the mixture . 10
5.1 General . 10
5.2 Composition, grading, binder content and additives . 10
5.2.1 Composition . 10
5.2.2 Grading . 11
5.2.3 Binder content . 12
5.2.4 Additives . 13
5.3 Coating and homogeneity . 13
5.4 Void content . 13
5.5 Water sensitivity . 14
5.6 Resistance to abrasion by studded tyres . 14
5.7 Reaction to fire . 15
5.8 Resistance to fuel for application on airfields . 15
5.9 Resistance to de-icing fluid for application on airfields . 15
5.10 Temperature of the mixture . 16
5.11 Durability . 16
6 Evaluation of conformity . 16
7 Identification . 17
Annex A (normative) Calculations of the penetration or the softening point of the binder of a
mixture when reclaimed asphalt is used . 18
A.1 General . 18
A.2 Calculation of the penetration of the binder of a mixture. 18
A.3 Calculation of the softening point of the binder of a mixture . 18
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Construction Products Directive . 20
ZA.1 Scope and relevant characteristics . 20
ZA.2 Procedure(s) for attestation of conformity of Bituminous mixtures for Ultra-thin layer
Asphalt Concrete . 21
ZA.2.1 System(s) of attestation of conformity. 21
ZA.2.2 EC Certificate and Declaration of conformity . 22
Foreword
This document (prEN 13108-9:2010) 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 is one of a series of standards as listed below:
EN 13108-1, Bituminous mixtures  Material specifications  Part 1: Asphalt Concrete
EN 13108-2, Bituminous mixtures  Material specifications  Part 2: Asphalt Concrete for very thin layers
EN 13108-3, Bituminous mixtures  Material specifications  Part 3: Soft Asphalt
EN 13108-4, Bituminous mixtures  Material specifications  Part 4: Hot Rolled Asphalt
EN 13108-5, Bituminous mixtures  Material specifications  Part 5: Stone Mastic Asphalt
EN 13108-6, Bituminous mixtures  Material specifications  Part 6: Mastic Asphalt
EN 13108-7, Bituminous mixtures  Material specifications  Part 7: Porous Asphalt
EN 13108-8, Bituminous mixtures  Material specifications  Part 8: Reclaimed Asphalt
EN 13108-20, Bituminous mixtures  Material specifications  Part 20: Type Testing
EN 13108-21, Bituminous mixtures  Material specifications  Part 21: Factory Production Control
No existing European Standard is superseded.
Annex A, which is normative, details the calculation of the penetration or the softening point in mixtures
containing reclaimed asphalt from the penetrations or softening points of the added binder and the recovered
binder from the reclaimed asphalt.
Annex ZA, which is informative, contains provisions in accordance with the CPD.
Introduction
The ultimate aim is to specify the required fundamental properties of the bituminous mixtures. However, as
specifications for Asphalt Concrete for Ultra-thin layers have traditionally been based empirically on
compositional recipes combined with specifications for the constituent materials with additional requirements
based on performance related tests and as insufficient experience is available with fundamental testing of
Asphalt Concrete for Ultra-thin layers, this document for the moment specifies empirical requirements only.
Asphalt Concretes for Ultra-thin layers is to be used for surface courses with a thickness of 10 mm to 20 mm.
UTLAC is a hot mix asphalt road surface course laid on a bonding layer, at a nominal thickness between 10
and 20 mm with properties suitable for the intended use. The method of bonding is an essential part of the
process and the final product is a combination of the bonding system and the bituminous mixture.
1 Scope
This document specifies requirements for the bituminous mixtures for Ultra thin layers Asphalt Concrete
(UTLAC) for use on roads, airfields and other trafficked areas.
The grading curve of the bituminous mixture for UTLAC is generally gap graded and the upper sieve size of
the mix is not less than 5 mm and not greater than 11 mm.
This document includes requirements for the selection of the constituent materials. It is designed to be read in
conjunction with EN 13108-20 and EN 13108-21.
NOTE Asphalt Concrete very thin layer mixtures with chemical modified binders not covered by EN 13924 are not
covered by this document.
The method of bonding is out of the scope of this document.
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 1097-6, Test for mechanical and physical properties of aggregates — Part 6: Determination of particle
density and water absorption
EN 1426, Bitumen and bituminous binders — Determination of needle penetration
EN 1427, Bitumen and bituminous binders — Determination of the softening point — Ring and ball method
EN 12591, Bitumen and bituminous binders — Specifications for paving grade bitumen
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 12697-13, Bituminous mixtures — Test methods for hot mix asphalt — Part 13: Temperature
measurement
EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked
areas
EN 13108-4, Bituminous mixtures — Material specifications — Part 4: Hot Rolled Asphalt
EN 13108-8, Bituminous mixtures — Material specifications — Part 8: Reclaimed Asphalt
EN 13108-20, Bituminous mixtures — Material specifications — Part 20: Type Testing
EN 13108-21, Bituminous mixtures — Material specifications — Part 21: Factory Production Control
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using
test data from reaction to fire tests
EN 14023, Bitumen and bituminous binders — Specifications for polymer modified bitumen
ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of
openings
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
pavement
structure, composed of one or more courses, to assist the passage of traffic over terrain
3.1.2
layer
element of a pavement laid in a single operation
3.1.3
course
structural element of a pavement constructed with a single material
NOTE A course may be laid in one or more layers.
3.1.4
surface course
upper course of the pavement, which is in contact with the traffic
3.1.5
binder course
part of the pavement between the surface course and the base
3.1.6
regulating course
course of variable thickness applied to an existing course or surface to provide the necessary profile for a
further course of consistent thickness
3.1.7
base
main structural element of a pavement
NOTE The base may be laid in one or more courses, described as "upper" base, "lower" base, etc.
3.1.8
Bituminous mixture for Ultra-thin layer Asphalt Concrete
BB/UTLAC
asphalt for surface courses with a thickness of 10 mm to 20 mm, in which the aggregate particles are
generally gap-graded to form a stone to stone contact and to provide an open surface texture
3.1.9
mix formulation
composition of a single mixture expressed as a target composition
NOTE A target composition may be expressed in two ways (see 3.1.10 and 3.1.11).
3.1.10
input target composition
expression of a mix formulation in terms of the constituent materials, the grading curve and the percentage of
bitumen added to the mixture
NOTE This will usually be the result of a laboratory mix design and validation.
3.1.11
output target composition
expression of a mix formulation in terms of the constituent materials and the mid point grading and soluble
binder content to be found on analysis
NOTE This will usually be the result of a production validation.
3.1.12
additive
constituent material, which can be added in small quantities to the mixture, e.g. inorganic or organic fibres or
polymers, to influence the mechanical properties, the workability or the colour of the mixture
3.2 Symbols and abbreviations
UTLAC  Asphalt Concrete for Ultra-thin layers
BB/UTLAC  Bituminous mixture for UTLAC
D  upper sieve size of the aggregate in the mixture, in millimetres (mm)
4 Requirements for constituent materials
4.1 General
Only constituent materials with established suitability shall be used.
The establishment of suitability shall result from one or more of the following:
 European Standard;
 European Technical Approval;
 specifications for materials based on a demonstrable history of satisfactory use in asphalt. Evidence shall
be provided on their suitability. This evidence may be based on research combined with evidence from
practice.
NOTE In the European asphalt industry it is common practice to use additives like inorganic or organic fibres,
pigments, waxes etc., which are not covered by a European Standard or ETA. This document allows the use of those
materials.
4.2 Binder
4.2.1 General
The binder shall be a paving grade bitumen or a modified bitumen. The paving grade bitumen shall conform to
EN 12591, the modified bitumen to EN 14023 or to be a hydrocarbon binder declared by the manufacturer.
Natural asphalt conforming to EN 13108-4, Annex B, may be added.
4.2.2 Selection of binder
The grade of the bitumen, the type and grade of the modified bitumen, and the amount and category of natural
asphalt shall be as specified.
In case of a paving grade bitumen the grade shall be selected from the grades between 35/50 and 250/330
inclusively.
NOTE Given the width variety of climates, traffic loads, used materials etc. it can be necessary to select on a regional
level specific binders.
When modified bitumen is used to improve properties that are not covered by the empirical specification
additional proof shall be provided. This proof shall be delivered through investigation using standards in the
EN 12697 series, that the modified bitumen is suitable for improving the desired functional characteristics. The
proof may be based on earlier research.
NOTE EN 14023 is a grading system and is only meant to characterise the modified bitumen. The modified bitumen
specifications are not functionally based, and it is not possible to combine these specifications with empirical asphalt
specifications to demonstrate functional behaviour. The proof required would normally be a Type Testing on a similar
mixture incorporating the modified binder showing fulfilment of the relevant property. The grade of the bitumen, the type
and grade of the modified bitumen, the grade of the hard grade bitumen and the amount and category of natural asphalt
may be selected.
4.2.3 Binder in mixtures with reclaimed asphalt
When using more than 10 % by mass of the total mixture of reclaimed asphalt from mixtures in which mainly
paving grade bitumen has been used and when the binder added to the mixture is a paving grade bitumen
and the grade of the bitumen is specified, the binder shall conform to the following requirements.
 The penetration or the softening point of the binder in the resulting mixture, calculated from the
penetrations or the softening points of the added binder and the recovered binder from the reclaimed
asphalt, shall meet the penetration or softening point requirements of the specified grade. The calculation
shall be executed according to the methods described in Annex A. Either the penetration or the softening
point requirement shall be specified.
4.3 Aggregate
4.3.1 Coarse aggregate
Coarse aggregate shall conform to EN 13043 as appropriate for the intended use.
4.3.2 Fine aggregate
Fine aggregate shall conform to EN 13043 as appropriate for the intended use.
4.3.3 All-in aggregates
All-in aggregate shall conform to EN 13043 as appropriate for the intended use.
4.3.4 Added filler
Filler aggregate shall conform to EN 13043 as appropriate for the intended use. The amount of added filler
shall be as specified.
NOTE 1 Filler includes materials as cement and hydrated lime.
NOTE 2 The expression “as appropriate for the intended use” in 4.3.1 to 4.3.4 means that the selection of the
requirements and the particular category depends on a number of conditions. These conditions will include traffic density,
climatic conditions, the construction of the course in which the mixture will be used, and economic considerations.
4.4 Reclaimed asphalt
The use and the amount of reclaimed asphalt and the mix group from which the reclaimed asphalt has been
or will be derived shall be as specified.
The properties of reclaimed asphalt declared in accordance with prEN 13108-8 shall conform to specified
requirements appropriate to the intended use.
NOTE 1 The expression "appropriate to the intended use" means that the selection of the requirements and the
particular category depends on a number of conditions. These conditions will include traffic density, climatic conditions, the
construction of the course in which the mixture will be used, and economic considerations.
The upper sieve size D of the aggregate in the reclaimed asphalt shall not exceed the upper sieve size D of
the mixture. The aggregate properties of the reclaimed asphalt shall fulfil the requirements specified for the
aggregate for the mixture.
NOTE 2 In general the use of reclaimed asphalt will not be allowed due to the compulsory gap graded grading of the
mixture, which is difficult to control with reclaimed asphalt.
4.5 Additives
The nature and properties of all additives shall be declared and they shall conform to the specifications
required in 4.1.
5 Requirements for the mixture
5.1 General
The target composition of the mixture in terms of its constituent materials, the percentages passing the
specified sieves, the binder content and where relevant the binder content from reclaimed asphalt and/or
natural asphalt and the percentage(s) of additive(s) shall be declared and documented.
At the target composition the mixture shall conform to the specified requirements.
When using reclaimed asphalt from mixtures in which a modified bitumen and/or a modifier additive has been
used, and/or the mixture itself contains a modified bitumen or a modifier, the amount of reclaimed asphalt
shall not exceed 10 % by mass of the total mixture.
5.2 Composition, grading, binder content and additives
5.2.1 Composition
At the target composition the grading shall conform to 5.2.2.
At the target composition the binder content shall conform to 5.2.3.
At the target composition the additive content shall conform to 5.2.4.
The grading shall be expressed in percentages by mass of total aggregate, using the sieves belonging either
to the basic set plus se
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