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    Properties of Concrete for use in Eurocode 2

    Properties of Concrete for use in Eurocode 2

    Section 3 of BS EN 1992-1-1 gives principles and rules for normal- and high-strength concrete (15–105MPa cube strength) and for normal-weight concrete. Lightweight aggregate concrete (< 2200kg/m3) is covered in section 11 of the Code and is not covered in
    this publication.
    Guidance is given on the use of Eurocode2 (EC2) and on the corresponding UK National Annex (generally to Eurocode 2-1-1). Where a ‘nationally determined parameter’ which specifically applies to the UK is given, this is stated or denoted (NDP), and this value may
    be different for other CEN member countries

    Where an equation from Eurocode 2 is quoted, the Eurocode equation reference is highlighted alongside the equation in the text.
    A list of European, national and international standards referred to in this publication is given under references at the back.

    Course Solutions

    Properties of Concrete for use in Eurocode 2

    In the design of concrete structures, engineers have the flexibility to specify particular concrete type(s) aimed at meeting the specific performance requirements for their project.
    For instance where calculated deflections exceed serviceability limits, the designer can achieve lower deflections by increasing the class of concrete and the associated modulus of elasticity, rather than by resizing members.

    With this flexibility goes the responsibility for ensuring that the quality control in concrete production and subsequent site operations will enable the concrete as cast to meet the specified requirements in service.

    Typically concrete is specified by compressive strength class, which indicates the
    characteristic compressive strength required. However, in design, a range of properties of
    concrete are used that are not normally part of the concrete specification. These may
    relate to both structural integrity and serviceability. BS EN 1992-1-1, (Eurocode 2: Design
    of concrete structures, Part 1-1 – General rules and rules for buildings) Section 3: Materials details
    these properties which are generally assumed to be related to the cylinder compressive
    strength, expressed either as the characteristic or the mean value, and are calculated
    using expressions which include one or other of these values.

    The guidance is intended to provide design engineers with a greater knowledge of
    concrete behavior, so that they can optimize the use of the material aspects of concrete
    in their design.

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