Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanical properties of the hardened concrete
Owing to its dense microstructure, ultra high performance concrete (UHPC) has both a high strength and also a greater stiffness (expressed by the modulus of elasticity) when compared with normal‐ and high‐strength concretes. It is well known that the behaviour of concrete becomes more brittle as its strength increases. This effect is particularly evident with UHPC. However, this disadvantage can be countered effectively by adding fibres, e.g. high‐strength steel fibres, which bring about a considerable improvement in the post‐peak behaviour in compression and tension, and that in turn means a more favourable response generally and better warnings when failure is pending. Generally, there exist different opinions regarding the role of fibres in fibre‐reinforced concrete. In conventional fibre‐reinforced concrete, the fibres are relatively large compared with the grains of aggregate.
Mechanical properties of the hardened concrete
Owing to its dense microstructure, ultra high performance concrete (UHPC) has both a high strength and also a greater stiffness (expressed by the modulus of elasticity) when compared with normal‐ and high‐strength concretes. It is well known that the behaviour of concrete becomes more brittle as its strength increases. This effect is particularly evident with UHPC. However, this disadvantage can be countered effectively by adding fibres, e.g. high‐strength steel fibres, which bring about a considerable improvement in the post‐peak behaviour in compression and tension, and that in turn means a more favourable response generally and better warnings when failure is pending. Generally, there exist different opinions regarding the role of fibres in fibre‐reinforced concrete. In conventional fibre‐reinforced concrete, the fibres are relatively large compared with the grains of aggregate.
Mechanical properties of the hardened concrete
Fehling, Ekkehard (Herausgeber:in) / Schmidt, Michael (Herausgeber:in) / Walraven, Joost (Herausgeber:in) / Leutbecher, Torsten (Herausgeber:in) / Fröhlich, Susanne (Herausgeber:in)
08.09.2014
36 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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