29 - Roofing applications of bitumen - other binders and uses (clear binders,...)

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From the course by École des Ponts ParisTech

Mastering bitumen for better roads and innovative applications

82 ratings

École des Ponts ParisTech

Mastering bitumen for better roads and innovative applications

82 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

Modifications of bitumen and applications (roads, roofing,…)

Modifications using polymers. Performance of PmB. Elastic recovery test. | of types of modifications of bitumen: CRMB, warm mix asphalt, temperature reduction | Bitumen emulsions, their components, manufacture, storage, handling, properties, classification, uses | surface treatments | design of pavements and types of aggregates | fundamental tests, the simulative tests (fatigue test, rutting test, giratory compactor,…) | interest of full scale testing of asphalt mix: example of IFSTTAR carousel | Hot mix plants, transport, laying and compaction of asphalt mix | physical characteristics and industrial applications for sealing.

21 - Polymer modified bitumens8:00

22 - Other types of modifications of bitumen: CRMB, temperature reduction6:15

23 - Bitumen emulsions9:45

24 - Surface treatments7:44

25 - Understanding design of flexible pavements and types of aggregates7:59

26 - Laboratory testing of asphalt mix9:06

27 - Full scale testing of asphalt mix: IFSTTAR carousel6:44

28 - Hot mix plants, transport, laying and compaction of asphalt mix6:52

29 - Roofing applications of bitumen - other binders and uses (clear binders,...)5:23

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

Dear participants, hello.

It's my pleasure to meet you again in this new technical presentation.

In this video, the objective is to introduce you to what the key

characteristics of bitumen are used for industrial applications.

According to the European standard EN 12597

dealing with the terminology of bitumen and bituminous binders,

it concerns bitumen used in other applications than construction and

maintenance of roads or assimilated structures.

The American Society for Testing and Materials,

ASTM, produces also standard specifications for

coating bitumens used in the roofing market in ASTM D312-00.

For roofing felts, industrial bitumen is expected to play its

function of binder between support and waterproofing systems,

such as shingles, built-up roofing, membranes and underlay.

All these systems with bitumen inside are intended to

protect the buildings against water damage.

The expected lifetime of such protections is at least ten years,

the minimum warranty period required by regulation, and

industrial bitumen plays an essential role on that.

It is therefore necessary to carry out performance tests,

including durability tests and tests where industrial bitumen

is in combination with the exact materials it is supposed to bind.

Please note there are some other industrial applications

such as thermal insulation with glass fibers impregnated, mastics,

paints and coatings and so on.

The performances which are required for roofing felts are the following:

High elongation at break,

low temperature flexibility.

Good flow resistance.

Indentation or footprint resistance.

Adhesion on the support.

Why specific grades are required for bitumen in industrial applications?

On roofs, there is a large and quick change of temperatures,

depending on the country and the weather conditions.

It requires increasing temperature range of use of bitumen.

To meet this requirement, two possible ways allow getting that.

One is using oxidation process.

The second way is the modification of the bitumen with polymers.

The oxidation process leads to produce oxidized bitumens for

which you can see in the table different grades and main applications.

Oxidized bitumen is characterized by high softening point.

Its application requires handling temperatures above 200°C.

Its production requires a blowing unit in the refinery or in the plant.

This was detailed in the video on the bitumen manufacturing process.

Other way consists to use additive in the bitumen, such as polymers like SBS or

Atactic Polypropylene from 12% for SBS up to 25% for APP.

For these polymer modification, penetration grade bitumens

are specifically designed for industrial applications.

SBS gives the bitumen rubber-like characteristics and

improved resistance to aging and weathering.

APP is a thermoplastic polymer, which enhances the bitumen's performance by

increasing its UV resistance and improving its creep resistance at high temperatures.

As a conclusion, industrial bitumen concern bitumen used in

other applications than construction and maintenance of roads.

Roofing felts are expected to last more than ten years.

They must protect buildings against water damage.

Industrial applications require increasing temperature range of use of bitumen.

To meet this requirement, 2 types of bitumens are commonly used:

oxidized bitumens and specifically designed penetration grades

mixed with polymers such as SBS or APP.

Thank you for your attention and good luck for the rest of this MOOC!

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