• The International Federation for Structural Concrete

    The International Federation for Structural Concrete

    A Bridge between Research and Practice



    The knowledge developped and shared by the fib (fib Bulletins, fib events, fib workshops, fib courses, etc.) is entirely the result of the volunteer work provided by the fib members.

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  • fib President's address

    fib President's address

    Introductory Video by Tor Ole Olsen, fib President 2019-2020.

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  • fib Symposium in Shanghai, China

    fib 2020 Symposium

    The fib International Symposium will take place from 27 to 29 April 2020 in Shanghai, China.

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Motivation

The overall motivation of fib Commission 4 (COM4) is to make theoretical and practical developments in the field of concrete and concrete technology, and to present these developments in an understandable and code-type formulated manner. COM4 positions itself at the forefront of new technologies and techniques by considering both fundamental research and practical issues.

Scope and objective of technical work

The aim of COM4 is to collect and to validate information on the properties and behaviour of concrete for structural applications subjected to various types of loading and environmental conditions. The commission focuses its attention both on traditional types of concrete, in particular under unusual conditions, and on new types of concrete and cementitious composites under all types of loading and condition. The properties of the concrete types considered should be formulated in such a way that it is possible to derive behavioural models and design recommendations for practical applications.

 

Frank DennCommission Chair
Frank Dehn
Tor Arne Martius HammerDeputy Chair
Tor Arne Martius-Hammer

First name Last name Country Affiliation
Dehn Frank Germany KIT Karlsruher Institut für Technologie
Ferrara Liberato Italy Politecnico di Milano
Justnes Harald Norway SINTEF Building and Infrastructure
Helland Steinar Norway S Helland Konsult
Walraven Joost Netherlands Delft University of Technology
Geiker Mette Norway NTNU - Trondheim Norwegian Univ.
Mechtcherine Viktor Germany Technical Univ. Dresden
Grünewald Steffen Netherlands Sustainable Concrete Centre
Fernández-Ordóñez David Switzerland fib
Beushausen Hans-Dieter South Africa University of Cape Town
Müller Harald Germany Karlsruhe Institute of Technology
Grünewald Steffen Netherlands Sustainable Concrete Centre
de Schutter Geert Belgium Ghent University
Ueda Tamon Japan Hokkaido University
Lohaus Ludger Germany Leibniz Universität Hannover
Vandewalle Lucie Belgium KULeuven
Martius-Hammer Tor Arne Norway SINTEF Building and Infrastructure

  • TG4.1 - Fibre-reinforced concrete

    Fibre concrete is more than 50 years old and the design rules have undergone developments over the years. TG4.1 will make theoretical and practical developments in the field of fibre-reinforced concrete materials technology, rheology and materials characterisation and modelling and to present these developments in code-type formulations.

    The task group collects and validates information on the behaviour of fibre-reinforced concrete materials, subjected to various types of loading and environmental conditions.

    TG4.1 is currently finalising a bulletin on the background to the design rules in MC2010.


    Lucie VandewalleConvener
    Lucie Vandewalle

    First name Last name Country Affiliation
    Vandewalle Lucie Belgium KULeuven
    Fernández-Ordóñez David Switzerland fib
    Dehn Frank Germany KIT Karlsruher Institut für Technologie
    Rossi Pierre France IFSTTAR
    Gettu Ravindra India Indian Institute of Technology Madras
    Mobasher Barzin United States Arizona State University
    Plizzari Giovanni Italy University of Brescia
    Barros Joaquim Portugal Universidade do Minho
    Balázs György L. Hungary Budapest Univ. of Techn. & Economics
    di Prisco Marco Italy Politecnico di Milano
    Dancygier Avraham Israel Technion-Israel Institute of Technology
    Parra-Montesinos Gustavo United States University of Michigan
    Soetens Tim Belgium -
    Löfgren Ingemar United Kingdom -
    Destree Xavier Belgium -
    Kusterle Wolfgang Germany OTH Regensburg
    Falkner Horst Germany Retired
    Banthia Nemkumar Canada Univ. of British Columbia

  • TG4.2 - Ultra high-performance fibre-reinforced concrete

    Task Group 4.2 (TG4.2) will make theoretical and practical developments for concretes with strength > 120 N/mm2 in the field of fibre-reinforced concrete materials technology, rheology and materials characterisation and modelling to present these developments in code-type formulations. Work is applicable to concrete with fibres of various types, such as steel, polymeric or combinations thereof.

    The work of TG4.2 is coordinated with the work of fib TG4.1 (Fibre-reinforced concrete) that develops recommendations for conventional fibre-reinforced concrete.


    Joost WalravenConvener
    Joost Walraven

    First name Last name Country Affiliation
    Dehn Frank Germany KIT Karlsruher Institut für Technologie
    Gambarova Pietro Italy Politecnico di Milano
    Behloul Mouloud France Lafarge
    Greiner Stefan Germany Bilfinger + Berger AG
    Simon Alain France Eiffage TP
    Bunje Kai Germany IBB Fehling & Jungmann GmbH
    Thibaux Thierry France Eiffage
    Katagiri Makoto Japan Taiheiyo Cement Corporation
    Resplendino Jacques France Setec TPI
    Skazlic Marijan Croatia University of Zagreb
    Leutbecher Torsten Germany Universität Siegen
    Aarup Berndt Denmark CRC Technology ApS
    Graybeal Benjamin United States PSI/FHWA Structures
    Marchand Pierre France IFSTTAR
    Frettlöhr Björn Germany -
    Walraven Joost Netherlands Delft University of Technology
    Fehling Ekkehard Germany IBB Fehling + Jungmann
    Rossi Pierre France IFSTTAR
    Redaelli Dario Switzerland Ecole d’ingénieurs et d’architectes - Fribourg
    Grünewald Steffen Netherlands Sustainable Concrete Centre
    Fernández-Ordóñez David Switzerland fib
    Denarie Emmanuel Switzerland EPF Lausanne
    Grünewald Steffen Netherlands Sustainable Concrete Centre
    Tue Nguyen Viet Austria Technische Universität Graz
    Sato Yasuhiko Japan Waseda University
    Reineck Karl-Heinz Germany Private
    Schmidt Michael Germany Fehling + Jungmann GmbH
    Toutlemonde François France IFSTTAR
    di Prisco Marco Italy Politecnico di Milano

  • TG4.3 - Structural design with flowable concrete

    Flowable concrete (highly flowable, self-compacting and/or self-levelling) has evolved from a special type to a commonly applied building material. fib Task Group 4.3 (TG4.3) considers three aspects of flowable concrete (FC) for structural design: material properties, production effects and structural boundary conditions. The flow of concrete (initiated by some vibration and/or the weight of concrete) can affect the structural characteristics of hardening or hardened concrete. The mixture composition has to be adjusted and optimised in order to obtain a high flowability. TG4.3 aims at promoting the application of flowable concrete, improving and adapting the concrete design and the production technology and its implementation in guidelines and codes.


    Steffen GrünewaldConvener
    Steffen Grünewald
    Liberato FerraraCo-Convener
    Liberato Ferrara

    First name Last name Country Affiliation
    Dehn Frank Germany KIT Karlsruher Institut für Technologie
    Ferrara Liberato Italy Politecnico di Milano
    Behloul Mouloud France Lafarge
    Gettu Ravindra India Indian Institute of Technology Madras
    Obladen Bas Netherlands Strukton Group
    Billberg Peter Sweden Strängbetong
    Martinie Laetitia France INSA
    Roussel Nicolas France IFSTTAR
    Freytag Bernhard Austria Technische Universität Graz
    Sonebi Mohamed Ireland Queen’s University Belfast
    Stähli Patrick Switzerland Concretum Construction Science AG
    Laranjeira Filipe Spain Univ. Politecnica de Catalunya
    Bertram Guido Germany Grawe + Bertram Ingenieure
    Leemann Andreas Switzerland EMPA
    Taylor Susan Ireland Queen's University Belfast
    Nunes Sandra Portugal University of Porto
    Spangenberg On Denmark Technical University of Denmark
    Fischer Gregor Denmark Technical University of Denmark
    Walraven Joost Netherlands Delft University of Technology
    Geiker Mette Norway NTNU - Trondheim Norwegian Univ.
    Kanstad Terje Norway The Norwegian Univ.of Science & Tech
    Stang Henrik Denmark University of Denmark
    Zilch Konrad Germany Private
    Grünewald Steffen Netherlands Sustainable Concrete Centre
    Schmidt Wolfram Germany BAM - Bundesanstalt für - Materialforschung und -prüfung
    Cairns John United Kingdom Heriot-Watt University
    Fernández-Ordóñez David Switzerland fib
    Barragan Bryan France OCV Chambery International
    Den Uijl Joop Netherlands Private
    Grünewald Steffen Netherlands Sustainable Concrete Centre
    Beitzel Harald Germany Inst. für Bauverfahrens- und Umwelttechnik
    Sato Yasuhiko Japan Waseda University
    Vandewalle Lucie Belgium KULeuven
    Barros Joaquim Portugal Universidade do Minho
    di Prisco Marco Italy Politecnico di Milano
    Martius-Hammer Tor Arne Norway SINTEF Building and Infrastructure

  • TG4.4 - Aesthetics of concrete surfaces

    The notion of exposed concrete is subjective and varies according to the viewer. The motivation of fib Task Group 4.4 (TG4.4) is to show possibilities how to categorise and evaluate visible concrete surfaces and how to point out technical factors of influence.

    TG4.4 will formulate a state-of-the-art technical report on how exposed concrete is defined and built. The final aim is to create a generally accepted recommendation or guidelines for exposed concrete with a homogenous appearance. This generally accepted recommendation or guidelines will be characterised by classifying exposed concrete in different categories. The limit of its objective performance will be considered as well as the consequences on the effort on-site and the planning of structural framework.


    Ludger LohausConvener
    Ludger Lohaus

    First name Last name Country Affiliation
    Dehn Frank Germany KIT Karlsruher Institut für Technologie
    Østnor Tone Anita Norway SINTEF Building and Infrastructure
    Casals Roige Lluis Spain Oficina tecnica d’enginyeria civil
    Goldammer Klaus-R. Germany Deutscher Beton- und Bautechnik-Verein e.V.
    Motzko Christoph Germany TU Darmstadt
    Reinisch Alexander Austria Doka Industrie GmbH
    Boska Erik Germany TU Darmstadt
    Pacios Alvarez Antonia Spain ETS Ingenieros Industriales - UPM
    de Weerdt Klaartje Norway NTNU
    Hofstadler Christian Austria Institut für Baubetrieb und Bauwirtschaft
    Fischer Karen Germany Leibniz Universität Hannover
    Cauberg Nikki Belgium WTCB-CSTC-BBRI
    Hierlein Elisabeth Germany FDB
    Lohaus Ludger Germany Leibniz Universität Hannover
    Fernández-Ordóñez David Switzerland fib
    Barragan Bryan France OCV Chambery International
    Tadros Maher United States University of Nebraska-Lincoln
    Gjerde Morten New Zealand Victoria University of Wellington

  • TG4.6 - Constitutive laws for concretes with supplementary cementitious materials

    The use of Supplementary Cementitious Materials (SCM) as binder in concrete is increasing, mainly driven by the need of the concrete industry to make concrete more environmentally friendly and in particular to meet official requirements for lower CO2 emissions. Here, it is to replace considerable amount of the high emitting Portland cement with low emitting SCM. The fib Model Code for Concrete Structures 2010 (MC2010) covers the use of SCM, but limits the materials and the amount of SCM. The overall motive of fib Task Group 4.6 (TG4.6) is to prepare the basis for an extension of the MC2010 that includes assessment of less known SCM as well as larger replacements.

    TG4.6 aims to prepare a state-of-the-art report addressing the items in chapter 5.1 Materials – Concrete in the MC2010. The constitutive relations can be formulated as in, and assessed in relation to compliance with those given in MC2010.


    tbdConvener
    TBD

    First name Last name Country Affiliation
    Dehn Frank Germany KIT Karlsruher Institut für Technologie
    Ye Guang Netherlands Delft University of Technology
    Hooton Doug Canada University of Toronto
    Lagerblad Björn Sweden CBI
    Visser Jeanette Netherlands Strukton Engineering
    Bier Thomas Germany TU Bergakademie Freiberg
    Helland Steinar Norway S Helland Konsult
    Andrade Carmen Spain Instituto Eduardo Torroja
    Pade Claus Denmark Danish Technological Institute
    Vollpracht Anya Germany Private
    Fernández-Ordóñez David Switzerland fib
    Denarie Emmanuel Switzerland EPF Lausanne
    de Schutter Geert Belgium Ghent University

 

fib postal address

Case postale 88
CH-1015 Lausanne
Switzerland

Contact

p : +41 21 693 27 47
f : +41 21 693 62 45
e : info@fib-international.org
w : www.fib-international.org

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