Controlling the sensitivity of concrete to spalling during fire exposure is one of the major issues in the design and construction of concrete structures and infrastructure today.
Real fire scenarios indicate that the fire-induced spalling of concrete could have serious consequences, and is a phenomenon that should be considered when designing for fire. Recent achievements in concrete mix design have led to new types of concrete which, apart from an increased performance at ambient temperature, have also shown a different sensitivity towards fire spalling. However, the fire spalling of concrete is far from being fully understood and more research is needed to control its risk.
The 6th International Workshop on Concrete Spalling due to Fire Exposure concentrates on real-world experiences and observations, practical applications, experimental and numerical advances, as well as structural design. The aim of the workshop is to obtain an overview of the current level of knowledge and to stimulate discussion between researchers and representatives from industry, authorities and code-making bodies in order to promote further understanding.
Workshop topics will cover recent achievements in experimental research and testing for determining key material properties and underlying processes and its contribution to understanding global spalling behaviour under various conditions. Of further interest will be actual advances in numerical modelling of spalling processes and structural design when spalling needs to be considered. Finally, the workshop will be the platform for practical applications of projects to avoid spalling of concrete.
The Workshop has been approved by the Institution of Fire Engineers as providing 10.5 hours of CPD Activity.
“An update on the revisions of Eurocode 1992-1-2”
Jenny Burridge, The Concrete Centre, UK.
Jenny Burridge (MA CEng MICE MIStructE) is a chartered civil and structural engineer with more than 30 years’ experience in the construction industry. She has worked for Arup and AECOM designing award winning buildings in both the UK and mainland Europe. As Head of Structural Engineering she leads a team of engineers advising clients, engineers and architects on the most efficient and effective uses of concrete. She is the UK representative on the CEN task group looking at revisions to the fire part of Eurocode 2 and chairs the BSI Advisory Committee for Engineering Design and Construction. She contributed to the Concrete Centre publication “Performance of Concrete Structures in Fire” and has been the UK member of the European Concrete Platform task-group on Fire and Eurocode 2 since 2010.
“Experimental investigations into the spalling of high strength concrete and the fire performance of tunnel linings”
Tom Lennon, BRE Group, UK.
Tom Lennon has worked at BRE for over 35 years. He was responsible for the programme of full-scale fire tests carried out at BRE’s large-scale test facility at Cardington on steel, concrete and timber framed buildings. Mr Lennon has extensive experience of the Structural Eurocodes. He is a prominent member of British Standards committee B525/-/32 the mirror group for the fire part of EC1 responsible for the implementation of the code in the UK. Mr Lennon was a member of the project team responsible for developing the National Annex for use with EN 1991-1-2. He is author of a number of papers, design guides and journal articles on the subject of structural fire engineering design. Mr Lennon is co-author of the Thomas Telford handbook on the fire design parts of EC1, EC2, EC3 and EC4 and is the author of a book on Structural Fire Engineering.
“An overview of the RILEM State-Of-The-Art Report on the modelling of concrete behaviour at high temperature.”
Dr Alain Millard, CEA, France.
Dr Alain Millard graduated for the French civil engineering school ‘Ecole Nationale des Ponts et Chaussées’. He joined the French Atomic Energy Authorities in 1978 in the Department of Thermal and Mechanical studies. There, Dr Millard specialized in the Thermo-Hydro-Mechanical behavior of geomaterials (concrete, soils, rocks). He actively participates to the development of the in-house FE code Cast3M. The Cast3m software is a multi-physics finite element code, which can be used, among many other things, to predict the evolution of the temperature, water and gas pressures and displacements and stress distributions in a structure subjected to high temperatures, and thus to construct various criteria in order to predict the possible development of spalling.
“Fire spalling theories – Realistic and more exotic ones.”
Dr Robert Jansson McNamee, BRANDSKYDDSLAGET, Sweden.
Dr Robert Jansson McNamee is the research manager of the Swedish consultancy company Brandskyddslaget. He has been active in different RILEM committees on concrete behaviour at high temperatures as secretary/co-chairman since 2006. Further on, he is the president of the Swedish chapter of SFPE and the Swedish representative in CEN/TC250/SC02/WG01/TG5 working with the revision of the Eurocode on concrete and fire EN 1992-1-2.
“An update on the activities of the RILEM Technical Committee 256-SPF: Spalling of concrete due to fire: testing and modelling.”
Dr Pierre Pimienta, CSTB, France.
Dr Pierre Pimienta belongs to the Scientific and Technical Center for Buildings (CSTB) in France. He is the Vice Head of the Division of the Safety Structures and Fire Department. He is involved in research, expertise and tests on concrete exposed to high temperatures and fire for more than two decades. He is the chairman of the RILEM Technical Committee SPF working on these topics. He co-organized the 3rd International Workshop on Concrete Spalling due to Fire in Paris in 2013. Previously, he did a thesis on mechanical properties of polar ice has made two postdocs in Hokkaido University, Japan and NIST, USA.
The Workshop will take place in the University of Sheffield’s brand new, state-of-the-art engineering building, the Diamond.
Opened in September 2015, The Diamond is home to over 5,000 students from seven engineering departments and three interdisciplinary programmes within the Faculty of Engineering.
The six-storey Diamond boasts specialist teaching facilities including a range of lecture theatres, seminar rooms, open-plan learning spaces, library and IT services, and space for informal study including a cafe.
It won the Design through Innovation award in the 2016 Yorkshire and Humber Region Royal Institute of Chartered Surveyors (RICS) awards.
- Influence of chemical, physical and mechanical processes on spalling of concrete
- Thermal behaviour and thermal stability of concrete ingredients at high temperatures
- Influence of heating on concrete properties
- Pore pressure development
- Transport mechanisms in heated concrete
- Stress-strain behaviour and fracture mechanics of heated concrete
- Spalling mechanisms
- Model selection and multiscale modelling
- Testing requirements and interpretation
- Constitutive material laws
- Structural design models taking into account spalling
- Influence of spalling on fire resistance and residual capacity
- Occurrence of spalling in natural fires
- Damage assessment and repair of heated concrete
- Measures to reduce or prevent spalling
- Case studies
- Pre-normative research and standardization
Dr. Shan-Shan Huang University of Sheffield (Chair)
Prof. Ian Burgess University of Sheffield
Ms. Tracey McNeilly University of Sheffield
Ms. Natalie J Eyre University of Sheffield
Chair: Dr. Shan-Shan Huang
The Scientific Committee includes the members of RILEM TC 256-SPF – Spalling of Concrete due to Fire: Testing and Modelling
- Dr. Cristian Maluk
- Dr. Johannes Kirnbauer
- Dr. Matthias Zeiml
- Dr. MD Jihad Miah
- Prof. Sergei Leonovich
- Prof. Jianzhuang Xiao
- Dr. Lenka Bodnarova
- Prof. Ing. Rudolf Hela
- Mrs. Ulla-Maija Jumppanen
- Dr Hélène Carré
- Dr. Stefano Dal Pont
- Dr. Maxime Lion
- Prof. Fekri Meftah
- Dr. Alain Millard
- Dr. Jean-Christophe Mindeguia
- Ms. Ing. Berenice Moreau
- Dr. Pierre Pimienta
- Dr. Ing. Fabienne Robert
- Prof. Dr. Steffen Anders
- Dr. Ing. Josipa Bosnjak
- Prof. Dr. Ing. Frank Dehn
- Prof. Dr. Ing. Ulrich Diederichs
- Mr. Michael Juknat
- Dr. Manfred Korzen
- Mr. Hitesh Lakhani
- Dr. Klaus Pistol
- Mr. Ludwig Stelzner
- Dr. Ing. Frank Weise
- Associate Prof Kosmas K. Sideris
- Dr. Umesh Kumar Sharma
- Prof. Roberto Felicetti
- Dr. Francesco Lo Monte
- Dr. Ing. Francesco Pesavento
- Dr Associate Prof Mitsuo Ozawa
- Dr. Izabela Hager
- Ms. MSc. Katarzyna Mróz
- Prof. Joao Paulo Correia Rodrigues
- Dr. Tomaž Hozjan
- Dr. Jerneja Kolsek
- Dr. Maria Cruz Alonso
- Dr. Lars Boström
- Dr. Robert Jansson McNamee
- Dr. Benedikt Weber
- Dr. Harris Angelakopoulos
- Prof. Luke Bisby
- Prof. Ian Burgess
- Ms. Jenny Burridge
- Dr. Colin T. Davie
- Dr. Susan Deeny
- Dr. Danny Hopkin
- Dr. Shan–Shan Huang
- Mr. Tom Lennon
- Mr. MSc. Ieuan Rickard
- Dr. Bernice Wong