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Feasibility of using recycled steel fibres to enhance the behaviour of recycled aggregate concrete

机译：使用再生钢纤维来增强再生骨料混凝土的行为的可行性

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The aim of this paper is to examine the feasibility of using recycled tires steel fibres (RTSF) in recycled aggregate concrete (RAC) for structural applications. The utilization of recycled materials in concrete can potentially conserve the environment by eliminating unnecessary consumption of limited landfill areas and reduce energy consumption. The use of recycled aggregate (RA) from construction and demolition waste and the use of RTSF derived from post consumed tires are good examples. However, the variability in the characteristics of RA and RAC are the main engineering concerns which hinder the use of RAC in structural application. This paper examines the effect of the addition of RTSF and RA on the behaviour of concrete. The results show that RTSF significantly improve the mechanical properties of RAC. The flexural performance of RAC with 2% (by mass) RTSF is better than normal concrete without fibres and equivalent to normal concrete with 2% fibres.
机译：本文的目的是研究使用再生骨料混凝土（RAC）在用于结构应用的可再生轮胎钢纤维（RTSF）的可行性。混凝土中再生材料的利用可能通过消除有限垃圾填埋场的不必要消费并降低能耗来保护环境。使用从施工和拆除废物中使用回收的聚集体（RA）以及源自消耗后轮胎的RTSF的使用是良好的例子。然而，RA和RAC特征的可变性是在结构应用中妨碍RAC使用的主要工程问题。本文研究了RTSF和RA对混凝土行为的影响。结果表明，RTSF显着提高了RAC的机械性能。 RAC的弯曲性能具有2％（质量）RTSF比常规混凝土更好，没有纤维，相当于具有2％纤维的正常混凝土。

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