The use of short, randomly oriented fibres as an additive in conventional fibre reinforced concrete (FRC) aims at improving the post-cracking behaviour of concrete similar to the effect of traditional steel reinforcement in concrete. To achieve a structurally sufficient reinforcing effect, a relatively large amount of steel or glass fibre reinforcement is typically used particularly in thinwalled structural elements, which are difficult to reinforce by traditional means due to their thin cross-sectional dimension. The addition of fibre reinforcement in thin-walled concrete elements is a technological advantage, however, due to the required amount of fibres also results in a relatively high cost of the fibre reinforced concrete composite
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