3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 1

RILEM Technical Comity TC HPB

Physical Properties and behavior of High-Performance Concrete at high temperature

Pierre Pimienta

3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 2

RILEM

RILEM

International Union of Laboratories and Experts in Construction Materials, Systems and Structures

Réunion Internationale des Laboratoires et Experts des Matériaux, systèmes de construction et ouvrages

Founded: 1947 in Paris (after the war) Promote scientific cooperation

The mission:• Develop scientific knowledge• Encourage transfer and application

3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 3

RILEM

1 200 experts70 countries

- Technical committees (about 50)

- Symposia and workshops

- Publication - Materials and Structures- STARs- Recommendations

3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 4

RILEM technical committee TC HPB

RILEM TC HPB (2007 – 2013)Physical Properties and behavior of High-Performance Concrete at high temperature

ACTIVE MEMBERS• 29 active members• 18 countries pays :

Austria, Australia, Belorussia, China, Finland, France, Germany, Greece, Italy, Japan, Poland, Portugal, Russia, Spain, Sweden, The Netherlands, United Kingdom, USA

BUREAU• Chairman: Pr Ulrich Schneider Pierre Pimienta (2010)• Secretary: Robert Jansson

2 MEETINGS / year

3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 5

Activity of the TC

State of the Art

o HPC properties

o Spalling

o Modeling

Article on Pore pressure measurements

• Physical background 

• Influencing parameters

•Test methods for spalling

• Fire safety design

•Measures to prevent spalling

In connection with fib TG 4.3

• Engineering modelling

•Advanced modelling

• Transfert modelling

• Mechanical behaviour

• Constitutive parameter relationships

•Degradation reactions

•Transport properties 

•Thermal properties

•Mechanical properties

Finalization: end 2013 – Next meeting: next week in CERIB

Previous RILEM TC HTC• 11 recommendations : mechanical

test methods at high temperature• 1 STAR on Ordinary Concrete

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Krakow, 2012

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New technical comity SPF

RILEM TC SPF (2014 – 2018)SPalling of Concrete due to Fire: testing and modelling

• STAR on spalling tests methods• Collecting new data and non-published results• Fire resistance sensitivity to spalling• Recommendations on testing• Useful material properties and test methods• Modelling / simulations• Round-robin tests (if finance)

Open to experts from all over the word• Active members• Participation to the meetings

2 MEETINGS / year

3rd International RILEM Workshop on Concrete Spalling due to Fire Exposure – Paris 25-27 September 2013 PAGE 8

MFPA, Leipzig, 2009

Thank you for your attention