20 - Global view of bitumen products standards and development

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From the course by École des Ponts ParisTech

Mastering bitumen for better roads and innovative applications

84 ratings

École des Ponts ParisTech

Mastering bitumen for better roads and innovative applications

84 ratings

During the four coming weeks, best experts in bitumen will bring you their knowledge and experience to build a strong understanding of today’s realities and new perspectives on the future of bitumen. Total is the European leader on bitumen markets. Innovation has always been the key to sustainability and durability in the products they develop. Their main objective here is to share technical knowledge and experience to insure bitumen are being used in the most effective and efficient ways for their different applications in road works. Ecole des Ponts, France oldest engineering school, remains very much in the present, as it has always been, in training engineers in order to meet the needs of our society and citizens in key areas such as transport housing and urban services, but also in fields like energy, environment, climate sciences, land-use planning and sustainable development. Nineteen world recognized experts on bitumen are contributing to this MOOC. The idea is to provide the broadest prism on this topic area with speakers coming from research, industry and end users.

From the lesson

Constitution, structure and characterization of bitumen - specifications-rheology

Schematic constitution and structure of bitumen, relationship between structure and rheology | Performance tests | Bitumen 3 states | Penetration test EN 1426 & Softening Point EN 142 | viscosity measurement EN 12596, EN 12595, Explanation of breaking point Fraass measurement EN 12593 | testing Binder after RTFOT, after RTFOT and PAV | Euopean specifications and process of revision | Viscosity based standards (ASTM D3381 | Deformation and flow. Elasticity, plasticity, visoc-elasticity. Newtonian, Non-Newtonian behaviour. Stress-strain response, shear modulus and phase angle. | Bending Beam Rheometer (BBR) and Dynamic Shear Rheometer (DSR) | Superpave specifications.

10 - Composition of bitumen8:07

11 - Road-construction bitumens characteristics -1 - generalities6:12

12 - Road-construction bitumens characteristics -2 - Penetrability & Softening Point7:06

13 - Road-construction bitumens characteristics -3 - viscosity & breaking point Fraass6:57

14 - road-construction bitumens characteristics -4 - ageing12:25

15 - Bituminous product standards /Understanding European specifications and process for revision10:01

16 - Viscosity based standards (ASTM D3381)5:17

17 - Rheology of bitumens6:17

18 - Road-construction bitumens characteristics -5- Bending Beam Rheometer and Dynamic shear Rheometer and MSCRT7:43

19 - Superpave bitumen Specifications4:30

20 - Global view of bitumen products standards and development3:07

Meet the Instructors

Eric GOSSE
Vice Président
TOTAL MARKETING SERVICES
Armel de la BOURDONNAYE
Directeur
ECOLE DES PONTS PARISTECH
Sophie LIMBORG
Mission Head
TOTAL MARKETING SERVICES
Mike SOUTHERN
Director
Bituconsult LTD
Clémence QUEFFELEC
Assistant professor
CEISAM laboratory, University of Nantes, France
Gilles GAUTHIER
Technical and Product development manager
TOTAL BITUMEN
Olivier GAMET
Production Pilot
Supply department / TOTAL
John D'ANGELO
Chief Operating Officer
D’Angelo Consulting, LLC.
Gary SCHOFIELD
Technical Manager
Total Bitumen (UK)
Nicolas HAUTIERE
Project Director
IFSTTAR / COSYS Department
Frédéric ANDRZEJEWSKI
Expert bitumen industrial roofing activity
Jean Pascla PLANCHE
Vice President
Asphalt and Petroleum Technologies / Western Research Institute
Virginie MOUILLET
PhD, Senior Researcher, deputy head of chemical Unit
Regional Laboratory of Aix-en-Provence / Cerema Méditerranée
Hélène AZOULAY
Deputy Managing Director
PFC/Ecole des Ponts
Nadège VO VINH
Bitumen Shipping Manager
Supply International Bitumen / TOTAL MARKETING SERVICES
Cécile GIACOBI
Pavement expert
Vinci Autoroutes
Laurence LAPALU
Bitumen Group Manager
TOTAL MARKETING SERVICES - Research Division
Yves BROSSEAUD
senior researcher - road materials expert - materials and Structures Department
IFSTTAR - Nantes - France
Emmanuel CHAILLEUX
Research Director
IFSTTAR
Jean-François CORTE
Member of the Council of Environment and Sustainable Development
French Ministry of Environment, Energy and Sea

Hello again, I'm Mike Southern.

You might remember me from the video on safe handling of bitumen.

This video is intended to provide some background to bitumen specifications and

how they are developed.

These general principles apply to all bitumen specifications.

Specifications are required so that producers and users of bituminous binders

can agree on the functional properties of the binder at the point of sale.

The starting point for development of a specification is the identification

of the characteristics required for performance.

In construction applications, the bitumen confers certain characteristics important

to the performance of the finished product.

It is important that the role played by the binder in the end use is understood, so

that a specification focuses on the relevant characteristics of the binder.

For asphalt mixtures, the pertinent characteristics might include: mechanical

properties and stability, durability and safety in use.

After the important characteristics of the end product have been defined,

bitumen properties that relate to these characteristics can be identified.

For each property, a defined test method is then selected

with specific test conditions which will then provide values or

limits that make up the product specification.

Additional properties are often included in a specification relating to specific

characteristics that might not be directly relevant to performance, but

provide important practical information relating to handling and application.

For example, mixing temperatures or flash-point.

In use, Bitumens are often exposed to a wide temperature range,

covering the daily and seasonal variations.

Most specifications include a property relating to low service temperatures,

generally to address the tendency of a binder to cracking;

a high service temperature property, to address the tendency to permanent

deformation (or rutting), and an intermediate service temperature

property, often used for mixture or pavement design.

In summary, most bitumen specifications contain specified test methods

that measure properties relating to important characteristics of bitumen

for the performance in their intended use.

The properties relate to the main failure modes,

such as low temperature cracking, often measured on laboratory-aged material,

high temperature deformation, often measured on virgin, or

short-term aged material, and properties to assist with the mixture and

pavement design, measured at intermediate temperature.

Thank you for your attention.

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