• COM4: Concrete & concrete

    COM4: Concrete & concrete technology

  • COM4: Concrete & concrete

    COM4: Concrete & concrete technology

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
- - - -
Frank Dehn Germany KIT Karlsruher Institut für Technologie
Liberato Ferrara Italy Politecnico di Milano
Harald Justnes Norway SINTEF Building and Infrastructure
Steinar Helland Norway S Helland Konsult
Joost Walraven Netherlands Delft University of Technology
Mette Geiker Norway NTNU - Trondheim Norwegian Univ.
Viktor Mechtcherine Germany Technical Univ. Dresden
Steffen Grünewald Netherlands Sustainable Concrete Centre
David Fernández-Ordóñez Switzerland fib
Hans-Dieter Beushausen South Africa University of Cape Town
Harald Müller Germany Karlsruhe Institute of Technology
Steffen Grünewald Netherlands Sustainable Concrete Centre
Geert de Schutter Belgium Ghent University
Tamon Ueda Japan Hokkaido University
Ludger Lohaus Germany Leibniz Universität Hannover
Lucie Vandewalle Belgium KULeuven
Tor Arne Martius-Hammer 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
    Lucie Vandewalle Belgium KULeuven
    David Fernández-Ordóñez Switzerland fib
    - - - -
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Pierre Rossi France IFSTTAR
    Ravindra Gettu India Indian Institute of Technology Madras
    Barzin Mobasher United States Arizona State University
    Giovanni Plizzari Italy University of Brescia
    Joaquim Barros Portugal Universidade do Minho
    György L. Balázs Hungary Budapest Univ. of Techn. & Economics
    Marco di Prisco Italy Politecnico di Milano
    Avraham Dancygier Israel Technion-Israel Institute of Technology
    Gustavo Parra-Montesinos United States University of Michigan
    Tim Soetens Belgium -
    Ingemar Löfgren United Kingdom -
    Xavier Destree Belgium -
    Wolfgang Kusterle Germany OTH Regensburg
    Horst Falkner Germany Retired

  • 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
    - - - -
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Pietro Gambarova Italy Politecnico di Milano
    Mouloud Behloul France Lafarge
    Stefan Greiner Germany Bilfinger + Berger AG
    Alain Simon France Eiffage TP
    Kai Bunje Germany IBB Fehling & Jungmann GmbH
    Thierry Thibaux France Eiffage
    Makoto Katagiri Japan Taiheiyo Cement Corporation
    Jacques Resplendino France Setec TPI
    Marijan Skazlic Croatia University of Zagreb
    Torsten Leutbecher Germany Universität Siegen
    Berndt Aarup Denmark CRC Technology ApS
    Benjamin Graybeal United States PSI/FHWA Structures
    Pierre Marchand France IFSTTAR
    Björn Frettlöhr Germany -
    Joost Walraven Netherlands Delft University of Technology
    Ekkehard Fehling Germany IBB Fehling + Jungmann
    Pierre Rossi France IFSTTAR
    Dario Redaelli Switzerland Ecole d’ingénieurs et d’architectes - Fribourg
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    David Fernández-Ordóñez Switzerland fib
    Emmanuel Denarie Switzerland EPF Lausanne
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Nguyen Viet Tue Austria Technische Universität Graz
    Yasuhiko Sato Japan Waseda University
    Karl-Heinz Reineck Germany Private
    Michael Schmidt Germany Fehling + Jungmann GmbH
    François Toutlemonde France IFSTTAR
    Marco di Prisco 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
    - - - -
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Liberato Ferrara Italy Politecnico di Milano
    Mouloud Behloul France Lafarge
    Ravindra Gettu India Indian Institute of Technology Madras
    Bas Obladen Netherlands Strukton Group
    Peter Billberg Sweden Strängbetong
    Laetitia Martinie France INSA
    Nicolas Roussel France IFSTTAR
    Bernhard Freytag Austria Technische Universität Graz
    Mohamed Sonebi Ireland Queen’s University Belfast
    Patrick Stähli Switzerland Concretum Construction Science AG
    Filipe Laranjeira Spain Univ. Politecnica de Catalunya
    Guido Bertram Germany Grawe + Bertram Ingenieure
    Andreas Leemann Switzerland EMPA
    Susan Taylor Ireland Queen's University Belfast
    Sandra Nunes Portugal University of Porto
    On Spangenberg Denmark Technical University of Denmark
    Gregor Fischer Denmark Technical University of Denmark
    Joost Walraven Netherlands Delft University of Technology
    Mette Geiker Norway NTNU - Trondheim Norwegian Univ.
    Terje Kanstad Norway The Norwegian Univ.of Science & Tech
    Henrik Stang Denmark University of Denmark
    Konrad Zilch Germany Private
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Wolfram Schmidt Germany BAM - Bundesanstalt für - Materialforschung und -prüfung
    John Cairns United Kingdom Heriot-Watt University
    David Fernández-Ordóñez Switzerland fib
    Bryan Barragan France OCV Chambery International
    Joop Den Uijl Netherlands Private
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Harald Beitzel Germany Inst. für Bauverfahrens- und Umwelttechnik
    Yasuhiko Sato Japan Waseda University
    Lucie Vandewalle Belgium KULeuven
    Joaquim Barros Portugal Universidade do Minho
    Marco di Prisco Italy Politecnico di Milano
    Tor Arne Martius-Hammer 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
    - - - -
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Tone Anita Østnor Norway SINTEF Building and Infrastructure
    Lluis Casals Roige Spain Oficina tecnica d’enginyeria civil
    Klaus-R. Goldammer Germany Deutscher Beton- und Bautechnik-Verein e.V.
    Christoph Motzko Germany TU Darmstadt
    Alexander Reinisch Austria Doka Industrie GmbH
    Erik Boska Germany TU Darmstadt
    Antonia Pacios Alvarez Spain ETS Ingenieros Industriales - UPM
    Klaartje de Weerdt Norway NTNU
    Christian Hofstadler Austria Institut für Baubetrieb und Bauwirtschaft
    Karen Fischer Germany Leibniz Universität Hannover
    Nikki Cauberg Belgium WTCB-CSTC-BBRI
    Elisabeth Hierlein Germany FDB
    Ludger Lohaus Germany Leibniz Universität Hannover
    David Fernández-Ordóñez Switzerland fib
    Bryan Barragan France OCV Chambery International
    Maher Tadros United States University of Nebraska-Lincoln
    Morten Gjerde 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
    - - - -
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Guang Ye Netherlands Delft University of Technology
    Doug Hooton Canada University of Toronto
    Björn Lagerblad Sweden CBI
    Jeanette Visser Netherlands Strukton Engineering
    Thomas Bier Germany TU Bergakademie Freiberg
    Steinar Helland Norway S Helland Konsult
    Carmen Andrade Spain Instituto Eduardo Torroja
    Claus Pade Denmark Danish Technological Institute
    Anya Vollpracht Germany Private
    David Fernández-Ordóñez Switzerland fib
    Emmanuel Denarie Switzerland EPF Lausanne
    Geert de Schutter Belgium Ghent University

 

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Case postale 88
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Contact

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

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