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An experimental study on the post-cracking behaviour of Hybrid Industrial/Recycled Steel Fibre-Reinforced Concrete

機(jī)譯：工業(yè)/再生鋼纖維增強(qiáng)混凝土開裂后行為的試驗(yàn)研究

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This paper investigates the mechanical behaviour of FRC made with both Industrial and Recycled Steel Fibres recovered from waste tyres. Specimens of various mixtures, characterised by the same volume fraction of fibres, but different proportions of industrial and recycled reinforcement were tested both in compression and bending. The results highlighted a fairly negligible influence of fibres in terms of compressive strength, whereas a significant decay in the post-cracking behaviour was observed in specimens with higher fractions of recycled fibres. However, a significant enhancement in the bending response was observed with respect to the case of plain concrete, even for specimens reinforced by recycled fibres only. (C) 2015 Elsevier Ltd. All rights reserved.
機(jī)譯：本文研究了從廢輪胎中回收的工業(yè)纖維和再生鋼纖維制成的FRC的機(jī)械性能。測(cè)試了各種混合物的樣品，這些樣品的特征在于纖維的體積分?jǐn)?shù)相同，但是工業(yè)和再生增強(qiáng)材料的比例不同，均經(jīng)過壓縮和彎曲測(cè)試。結(jié)果表明，在抗壓強(qiáng)度方面，纖維的影響可忽略不計(jì)，而在回收纖維比例較高的樣品中，觀察到的開裂后行為的明顯衰減。但是，與普通混凝土相比，即使僅使用再生纖維加固的試樣，其彎曲響應(yīng)也明顯提高。 （C）2015 Elsevier Ltd.保留所有權(quán)利。

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