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首页> 外文期刊>Arabian Journal for Science and Engineering >Characteristics of Sustainable Self-compacting Concrete Reinforced by Fibres fromWaste Materials
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Characteristics of Sustainable Self-compacting Concrete Reinforced by Fibres fromWaste Materials

机译：废料纤维增强的可持续自密实混凝土的特性

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摘要

The influences of fibres originating from different waste materials on the fresh and hardened properties of self-compactingconcrete (SCC) were investigated in this study. For this purpose, a total number of 13 mixes of wood (WF), polyvinylchloride (PF), aluminium (AF), and iron filing (IF) fibres, with volume fractions (V_f) of 0.5%, 1.0%, and 1.5% were prepared.The investigated fresh properties of the prepared mixes were slump flow, T_(500), V-funnel as well as L-box tests, while thehardened properties were compressive strength, flexural strength, and ultrasonic pulse velocity (UPV). The findings indicatedthat although the majority of the prepared SCC mixes met the required self-compacting criteria, the inclusion of the wastefibres negatively affected the mix workability, particularly when V_f of 1.5% was used. Regarding the hardened properties,SCC mixes-containing IF exhibited a slight increase in both compressive and flexural strength compared with the referencemix without fibres, whereas mixes with AF fibres demonstrated a noticeable decrease in compressive strength, but with acomparable level of flexural strength. However, the flexural strength ofWF and PF decreased as their V_f increased in the SCCmixes, although a slight increase in compressive strength was noted in the mixes with PF. Furthermore, there was no reliablerelationship to be constructed between the compressive strength and UPV tests for all fibres used.
机译：在这项研究中，研究了源自不同废料的纤维对自密实混凝土（SCC）的新鲜和硬化性能的影响。为此，总共混合了13种木材（WF），聚氯乙烯（PF），铝（AF）和铁屑（IF）纤维，体积分数（V_f）分别为0.5％，1.0％和1.5％制备的混合物的新鲜特性包括坍落度，T_（500），V形漏斗以及L盒试验，而硬化特性包括抗压强度，弯曲强度和超声脉冲速度（UPV）。研究结果表明，尽管大多数制备的SCC混合物均符合要求的自压实标准，但废纤维的加入对混合物的可加工性产生了负面影响，尤其是当使用1.5％的V_f时。关于硬化性能，与不含纤维的参比混合物相比，含SCC混合物的IF的抗压强度和抗弯强度均略有增加，而与AF纤维的参比混合物的抗压强度却明显降低，但抗弯强度却相当。但是，在SCC混合料中，WF和PF的挠曲强度随其V_f的增加而降低，尽管在PF混合料中抗压强度略有增加。此外，对于所有使用的纤维，在抗压强度和UPV测试之间没有建立可靠的关系。

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