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The brittle nature of concrete is a reflection of its low toughness and the presence of defects. One effective way to enhance the toughness of concrete is by fibre reinforcement. Synthetic fibres, mostly polypropylene, have been widely used as a concrete additive at 1% or less volume fraction for toughness enhancement and shrinkage control. Pull-out of fibres bridging a concrete matrix crack absorbs a significant amount of energy. This paper reviews some of the fracture mechanics approaches to the prediction of failure of fibre-reinforced concrete structures, methods used to rank the toughness of fibre-reinforced concrete, toughness optimization, and the properties of concrete reinforced with selected synthetic and recycled fibres.
The brittle nature of concrete is a reflection of its low toughness and the presence of defects. One effective way to enhance the toughness of concrete is by fibre reinforcement. Synthetic fibres, mostly polypropylene, have been widely used as a concrete additive at 1% or less volume fraction for toughness enhancement and shrinkage control. Pull-out of fibres bridging a concrete matrix crack absorbs a significant amount of energy. This paper reviews some of the fracture mechanics approaches to the prediction of failure of fibre-reinforced concrete structures, methods used to rank the toughness of fibre-reinforced concrete, toughness optimization, and the properties of concrete reinforced with selected synthetic and recycled fibres.
Toughness characteristics of synthetic fibre-reinforced cementitious composites
Wang, Y. (author)
Fatigue and Fracture of Engineering Materials and Structures ; 21 ; 521-532
1998
12 Seiten, 38 Quellen
Article (Journal)
English
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