CEN/TR 15352:2006
(Main)Bitumen and bituminous binders - Development of performance-related specifications: status report 2005
Bitumen and bituminous binders - Development of performance-related specifications: status report 2005
TC 336/WG 1 has agreed to produce a Technical Report (CEN-TR) to summarise and illustrate the ongoing work in the standardisation area with reference to the process of developing from traditional "empirical" based specifications to new "performance-related" specifications for paving bitumens, as required by the Mandate M/124. It was decided that it would be better to maintain such a report as an ‘informative’ document, which can be regularly amended and updated by TC 336/WG 1 as appropriate.
Bitumen und bitumenhaltige Bindemittel - Entwicklung von auf das Gebrauchsverhalten bezogenen Spezifikationen: Statusbericht 2005
TC 336 WG 1 hat beschlossen, einen Technischen Bericht (CEN-TR) zu erstellen, um die laufende Arbeit im
Bereich der Normung in Bezug auf den Entwicklungsprozess von traditionellen „empirisch“ basierten Spezifi-kationen
hin zu neuen „gebrauchstauglichkeitsbezogenen“ Spezifikationen für Straßenbaubitumen, wie sie
nach dem Mandat M/124 gefordert sind, zusammenzufassen und zu erläutern. Es wurde entschieden, dass
es besser sei, einen derartigen Bericht als ,informatives‘ Dokument zu behandeln, das von TC 336/WG 1 je
nach Bedarf in regelmäßigen Abständen geändert und aktualisiert werden kann.
Bitumes et liants bitumineux - Elaboration de spécifications reliées aux performances : rapport d'avancement 2005
Le TC 336/WG 1 a donné son accord pour produire un rapport technique (CEN-TR) visant à récapituler et à illustrer les travaux de normalisation en cours qui concernent le processus de transformation des spécifications traditionnelles « empiriques » en nouvelles spécifications « reliées aux performances » portant sur les bitumes routiers, selon les exigences du mandat M/124. Il a été décidé de laisser à ce rapport sa nature de document informatif, pouvant être régulièrement amendé et mis à jour par le TC 336/WG 1 en fonction des besoins.
Bitumen in bitumenska veziva – Razvoj specifikacij za lastnosti, ki so povezane z obnašanjem: poročilo o statusu 2005
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2006
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Bitumen and bituminous binders - Development of performance-related specifications:
status report 2005
Bitumen und bitumenhaltige Bindemittel - Entwicklung von auf das Gebrauchsverhalten
bezogenen Spezifikationen: Statusbericht 2005
Bitumes et liants bitumineux - Elaboration de spécifications reliées aux performances :
rapport d'avancement 2005
Ta slovenski standard je istoveten z: CEN/TR 15352:2006
ICS:
75.140
91.100.50
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT
CEN/TR 15352
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
April 2006
ICS 75.140; 91.100.50
English Version
Bitumen and bituminous binders - Development of performance-
related specifications: status report 2005
Bitumes et liants bitumineux - Elaboration de spécifications Bitumen und bitumenhaltige Bindemittel - Entwicklung von
axées sur les performances : rapport d'avancement 2005 auf das Gebrauchsverhalten bezogenen Spezifikationen:
Statusbericht 2005
This Technical Report was approved by CEN on 27 November 2005. It has been drawn up by the Technical Committee CEN/TC 336.
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, Romania,
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
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15352:2006: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Executive summary.4
2 Scope of the report .5
3 Introduction.5
4 Motivation and expected benefits.5
5 From pavement perfomanced requirements to binder properties .6
6 Preliminary phase (1999 – 2003) .6
7 Detailed review of binder properties and their potentially associated test methods .7
7.1 General.7
7.2 Elevated service temperature property .8
7.3 Intermediate service temperature property.9
7.4 Low service temperature property.10
7.5 Durability (or ageing simulation / conditioning) .11
7.6 Fatigue.13
7.7 Cohesion.13
7.8 Adhesion.13
7.9 Other properties.13
8 Validation of test methods .14
8.1 General.14
8.2 BiTVal Project.14
8.3 Data Collection.15
9 Summary and conclusion - Development of P- R specifications .16
Annex A First generation specifications.18
Annex B EAPA binder evaluation.22
Annex C Detailed review of binder properties and associated test methods .24
C.1 TASK GROUP 1 - Elevated service temperature property .24
C.2 TASK GROUP 2 - Low service temperature property.26
C.3 TASK GROUP 3 - Durability (or ageing simulation / conditioning) .29
Annex D FEHRL validation project.33
D.1 Introduction.33
D.2 Project methodology.33
D.3 Project organisation.34
D.4 Project timetable.35
D.5 Outputs.35
Annex E Data collection framework – Version 2005 .37
Annex F GLOSSARY.39
F.1 Organisations.39
F.2 Equipment, test methods and associated parameters.39
F.3 Product related acronyms.40
F.4 Standardisation acronyms.40
Foreword
This Technical Report (CEN/TR 15352:2006) has been prepared by Technical Committee CEN/TC 336
“Bituminous binders”, the secretariat of which is held by AFNOR.
1 Executive summary
This Technical Report contains a synthesis of TC 336/WG 1 work on the development of second generation
(performance-related) specifications for paving grade bitumens. It is a CEN Technical Report (TR) and will be
regularly updated by TC 336.
TC 336 Working Groups are completing their work to produce ‘harmonised’ first generation European
specifications and test methods for paving bitumens, including EN 12591 (paving grades), prEN 13924 (hard
grades) and EN 14023 (PMB). These are based on existing (empirical) national standards.
A process, involving industry-wide participation, is being followed to ensure that, for the second generation
standards, the performance relationships of a binder property are assessed before a specification is
developed. The basic sequential steps are as follows:
• Step 1: identify the binder properties linked to the performance requirements of asphalt pavements,
• Step 2: select and standardise appropriate (new) test methods to measure these properties,
• Step 3: collect data and ensure field validation for establishing (new) binder specifications,
• Step 4: review the grading system according to the (new) specification.
The development work has reached Step 3. Although new tests methods, when identified, could still be added,
the main thrust currently is on validation of the test methods selected by WG 1. There are two major tasks
being undertaken;
Literature review.
A project, named “BiTVal”, is being undertaken by FEHRL. The first phase of the project is to
evaluate the published literature on relationships between bitumen characteristics and
asphalt/pavement behaviour. A FEHRL report will make recommendations on use of binder tests by
WG 1, and also identify gaps in the knowledge.
Collection of data for existing bitumens using the selected test methods.
This CEN/TR contains a framework of properties and test methods, which is being used as the basis
for data collection. The intention is to encourage widespread input from member states and the
industry around Europe. As confidence in the validation of the (new) test methods is established it
may be decided to introduce them progressively into the existing specifications according to priority
of need.
It is, of course, recognised that the binder properties alone do not determine pavement performance. Other
parameters, such as aggregate characteristics, mix design, manufacture and laying are also considered as
important. Nevertheless the goal of the work of WG 1 is to propose a framework, which could include levels or
classes, and which can be used in new performance-related specifications for paving grade binders.
The TC 336 business plan recognises that the development of new P-R specifications will be a long-term
process. This Technical Report will be a living document, being regularly updated, to indicate the current state
of progress of the work of WG 1.
2 Scope of the report
TC 336/WG 1 has agreed to produce a Technical Report (CEN-TR) to summarise and illustrate the ongoing work
in the standardisation area with reference to the process of developing from traditional “empirical” based
specifications to new “performance-related” specifications for paving bitumens, as required by the Mandate
M/124. It was decided that it would be better to maintain such a report as an ‘informative’ document, which can
be regularly amended and updated by TC 336/WG 1 as appropriate.
3 Introduction
The European Committee for Standardization (CEN) was formed in the early sixties and was charged with
preparing common rules and standards to be used in all member countries to ensure no barriers to trade.
As part of that programme, new harmonised European specifications for paving grade bitumens are being
developed in two stages:
a) First generation (CEN/TC 19/SC 1, since 1990) – The working groups have completed their work to
produce specifications and test methods for paving bitumens, for use throughout Europe, which were
based on existing national standards. Such specifications (already published in 1999 as EN 12591, and
now under revision after 5 years in use) are well known as empirical tests based specifications.
The first generation standards, including EN 12591, EN 13924 (hard grades) and EN 14023 (PMB), and
their associated test methods, are summarised in Annex A.
b) Second generation (CEN/TC 336, since 2000) – The next task of the working groups is to produce
specifications that are more Performance-Related, to reflect the binder contribution to the performance of
the asphalt pavement, with the inclusion of existing or new properties and test methods, as appropriate.
Bitumen specifications have remained relatively unchanged over the last forty years and the specifications now
being developed represent a very significant step forward for all involved contributors such as producers, asphalt
suppliers, contractors and administrations all over Europe.
4 Motivation and expected benefits
In the EC’s acceptance of the CEN/TC 336 response to the Mandate, it was stated:
”The Commission understand that the standards, which will be developed, are the generation of empirical
specifications. CEN/TC 336 is encouraged to develop new specifications, performance-related, as soon as
possible, after finalisation of the first generation standards. If TC 336 considers there is a need to change
some of the performance characteristics for the second generation of standards, in line with a performance
based approach, a revision of the mandate should be proposed by CEN/TC 336 to the Commission.”
The second generation of standards can be more ‘market-driven’. The aim is good quality asphalt roads that
perform well throughout their lifetime. Specifications and standards should meet both the technical and commercial
needs of the asphalt industry and its customers, and it is important these needs are properly identified and
understood.
The overall purpose of the specification system will be to ensure that binders can be evaluated on a fair and
comparable basis, that the appropriate binder can easily be selected for a particular application and that the binder
can be used with confidence in its quality. Ideally, the system should be suitable throughout Europe, for all types of
climatic and traffic conditions, for a large variety of pavement applications, and applicable to all categories of
binders: conventional, special and modified bitumens.
5 From pavement perfomanced requirements to binder properties
It is important that the market needs are correctly identified and addressed, theref
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