• 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 MFPA Leipzig GmbH
Liberato Ferrara Italy Politecnico di Milano
Harald Müller Germany Karlsruhe Institute of Technology
Harald Justnes Norway -
Steinar Helland Norway S Helland Konsult
Lucie Vandewalle Belgium Catholic University Leuven
Tor Arne Martius-Hammer Norway SINTEF
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
Tamon Ueda Japan Hokkaido University
Hans-Dieter Beushausen South Africa University of Cape Town
David Fernández-Ordóñez Switzerland fib

  • 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.


    f26a5b1890dc0eaf1ac664c5Convener
    Lucie Vandewalle

    First name Last name Country Affiliation
    - - - -
    György L. Balázs Hungary Budapest Univ. of Techn. & Economics
    Frank Dehn Germany MFPA Leipzig GmbH
    Marco di Prisco Italy Politecnico di Milano
    Pedro Serna Ros Spain Univ. Politecnica de Valencia-Icitech
    Barzin Mobasher United States -
    Nemkumar Banthia Canada Univ. of British Columbia
    Horst Falkner Germany Retired
    Wolfgang Kusterle Germany OTH Regensburg
    Xavier Destree Belgium -
    Ingemar Löfgren United Kingdom -
    Tim Soetens Belgium -
    Ravindra Gettu India -
    Gustavo Parra-Montesinos United States University of Michigan
    Lucie Vandewalle Belgium Catholic University Leuven
    Benoît Parmentier Belgium Belgian Building Research Institute
    Terje Kanstad Norway The Norwegian Univ.of Science & Tech
    Fausto Minelli Italy University of Brescia
    Sandro Moro Italy BASF
    Giovanni Plizzari Italy University of Brescia
    Pierre Rossi France IFSTTAR
    Gerhard Vitt Germany Bekaert GmbH
    Bryan Barragan France OCV Chambery International
    Joaquim Barros Portugal Universidade do Minho
    Bruno Massicotte Canada Ecole Polytechnique de Montréal
    A. A. van den Bos Netherlands DIANA FEA bv
    Billy Boshoff South Africa University of Stellenbosch
    Avraham Dancygier Israel Technion-Israel Institute of Technology
    David Fernández-Ordóñez Switzerland fib

  • 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 MFPA Leipzig GmbH
    Marco di Prisco Italy Politecnico di Milano
    François Toutlemonde France IFSTTAR
    Pietro Gambarova Italy Politecnico di Milano
    Mouloud Behloul France Lafarge
    Stefan Greiner Germany Bilfinger + Berger AG
    Alain Simon France -
    Kai Bunje Germany -
    Thierry Thibaux France -
    Makoto Katagiri Japan -
    Jacques Resplendino France -
    Marijan Skazlic Croatia -
    Torsten Leutbecher Germany -
    Berndt Aarup Denmark -
    Benjamin Graybeal United States -
    Pierre Marchand France -
    Björn Frettlöhr Germany -
    Joost Walraven Netherlands Delft University of Technology
    Ekkehard Fehling Germany IBB Fehling + Jungmann
    Pierre Rossi France IFSTTAR
    Emmanuel Denarie Switzerland EPF Lausanne
    Dario Redaelli Switzerland Ecole d’ingénieurs et d’architectes - Fribourg
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Karl-Heinz Reineck Germany Private
    Yasuhiko Sato Japan -
    Nguyen Viet Tue Austria Technische Universität Graz
    David Fernández-Ordóñez Switzerland fib

  • 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.


    f26a5b1890dc0eaf1ac664c5Convener
    Steffen Grünewald

    First name Last name Country Affiliation
    - - - -
    Frank Dehn Germany MFPA Leipzig GmbH
    Liberato Ferrara Italy Politecnico di Milano
    Marco di Prisco Italy Politecnico di Milano
    Mouloud Behloul France Lafarge
    Ravindra Gettu India -
    Bas Obladen Netherlands Strukton Group
    Peter Billberg Sweden -
    Laetitia Martinie France -
    Nicolas Roussel France -
    Bernhard Freytag Austria -
    Mohamed Sonebi Ireland -
    Patrick Stähli Switzerland -
    Filipe Laranjeira Spain -
    Guido Bertram Germany -
    Andreas Leemann Switzerland -
    Susan Taylor Ireland -
    Sandra Nunes Portugal -
    On Spangenberg Denmark Technical University of Denmark
    Gregor Fischer Denmark -
    Lucie Vandewalle Belgium Catholic University Leuven
    Tor Arne Martius-Hammer Norway SINTEF
    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
    Joop Den Uijl Netherlands Private
    Joaquim Barros Portugal Universidade do Minho
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Yasuhiko Sato Japan -
    Wolfram Schmidt Germany BAM - Bundesanstalt für - Materialforschung und -prüfung
    John Cairns United Kingdom Heriot-Watt University
    Harald Beitzel Germany Inst. für Bauverfahrens- und Umwelttechnik
    Bryan Barragan France OCV Chambery International
    David Fernández-Ordóñez Switzerland fib

  • 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.


    f26a5b1890dc0eaf1ac664c5Convener
    Ludger Lohaus

    First name Last name Country Affiliation
    - - - -
    Frank Dehn Germany MFPA Leipzig GmbH
    Tone Anita Østnor Norway -
    Lluis Casals Roige Spain -
    Klaus-R. Goldammer Germany -
    Christoph Motzko Germany -
    Alexander Reinisch Austria -
    Erik Boska Germany -
    Antonia Pacios Alvarez Spain -
    Klaartje de Weerdt Norway NTNU
    Christian Hofstadler Austria -
    Karen FISCHER Fischer Germany -
    Bryan Barragan France OCV Chambery International
    Nikki Cauberg Belgium WTCB-CSTC-BBRI
    Elisabeth Hierlein Germany FDB
    Ludger Lohaus Germany Leibniz Universität Hannover
    David Fernández-Ordóñez Switzerland fib

  • TG4.5 - Performance-based specifications for concrete

    Traditional requirements for constituent materials, limiting w/b-ratios and cement contents are often not applicable for modern construction and modern types of concretes. With the advancement of testing methods for fresh and hardened concrete properties, a performance-based design and specification of concrete and concrete structures is approaching and already frequently applied. However, an independent overview is still missing on how a performance-based approach can be generalised – for both mechanical and durability aspects. In a first step fib Task Group 4.5 (TG4.5) intends to provide further information in addition to the new fib Model Code for Concrete Structures 2010 (MC2010) and how performance-based specifications can be adopted for the given models and design rules.


    f26a5b1890dc0eaf1ac664c5Convener
    H.D. Beus-hausen
    f26a5b1890dc0eaf1ac664c5Convener
    Frank Dehn

    First name Last name Country Affiliation
    - - - -
    Frank Dehn Germany MFPA Leipzig GmbH
    Liberato Ferrara Italy Politecnico di Milano
    Marco di Prisco Italy Politecnico di Milano
    Robert Coufal Czech Republic TBG METROSTAV s.r.o.
    Annemarie Herrmann Germany -
    Joachim Juhart Austria Graz University of Technology
    Véronique Baroghel-Bouny France -
    Gert König Germany König und Heunisch Planungsgesellschaft
    Frank Altmann Qatar BG&E
    Sonja Fennis Netherlands Rijkswaterstaat Grote Projecten & Onderhoud
    Mark Alexander South Africa University of Cape Town
    Nele De Belie Belgium -
    Franka Tauscher Germany -
    Guang Ye Netherlands -
    Doug Hooton Canada -
    Joost Gulikers Netherlands Rijkswaterstaat Centre for Infrastructure
    Agnieszka Bigaj-van Vliet Netherlands TNO-Built Environment + Geosciences
    Tor Arne Martius-Hammer Norway SINTEF
    Joost Walraven Netherlands Delft University of Technology
    Mette Geiker Norway NTNU - Trondheim Norwegian Univ.
    Viktor Mechtcherine Germany Technical Univ. Dresden
    Alfred Strauss Austria Univ. Bodenkultur Vienna
    Geert de Schutter Belgium Ghent University
    Roman Wan-Wendner Austria Universität für Bodenkultur, Wien
    Roberto Torrent Switzerland Quali- Ti-Mat Sagl
    Steffen Grünewald Netherlands Sustainable Concrete Centre
    Michael Haist Germany Karlsruhe Institute of Technology (KIT)
    Hans-Dieter Beushausen South Africa University of Cape Town
    Harald Müller Germany Karlsruhe Institute of Technology
    David Fernández-Ordóñez Switzerland fib

  • 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.


    Tor Arne Martius-HammerConvener
    Tor Arne Martius-Hammer

    First name Last name Country Affiliation
    - - - -
    Frank Dehn Germany MFPA Leipzig GmbH
    Guang Ye Netherlands -
    Doug Hooton Canada -
    Björn Lagerblad Sweden CBI
    Jeanette Visser Netherlands -
    Thomas Bier Germany -
    Steinar Helland Norway S Helland Konsult
    Tor Arne Martius-Hammer Norway SINTEF
    Carmen Andrade Spain Instituto Eduardo Torroja
    Claus Pade Denmark Danish Technological Institute
    Geert de Schutter Belgium Ghent University
    Emmanuel Denarie Switzerland EPF Lausanne
    Anya Vollpracht Germany Private
    David Fernández-Ordóñez Switzerland fib

 

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Case postale 88
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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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