Investigation on Improvement in Shear Performance of Reinforced-Concrete Beams Produced with Recycled Steel Wires from Waste Tires
Investigation on Improvement in Shear Performance of Reinforced-Concrete Beams Produced with Recycled Steel Wires from Waste Tires
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DOI：
10.3390/su142013360
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发表时间：
2022-10-01
期刊：
影响因子：
3.9
通讯作者：
Arslan, Musa Hakan
中科院分区：
文献类型：
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作者：
Aksoylu, Ceyhun;Ozkilic, Yasin Onuralp;Arslan, Musa Hakan
随着全球汽车销量的增长，废轮胎正成为一个日益严重的问题。这些废旧轮胎的储存和处理是严重的环境问题。在不同领域重新利用这些废物而不是进行处理，对于防止环境污染和创造新的低成本产品至关重要。基于这一动机，本文研究了利用废旧轮胎再生钢丝（RSWT）加固传统混凝土梁的性能。在混凝土梁中掺入1%~ 3%的RSWT，每增加1%。总共，9个立方体，12个圆柱体和12个混凝土梁进行了铸造和测试，以获得压缩，分裂拉伸和弯曲强度，分别。掺入1%、2%和3%的RSWT的混凝土抗压强度分别比基准混凝土提高17.2%、30.8%和46.4%。劈拉强度分别提高14.4%、25.1%和36.7%。这表明，随着纤维掺量的增加，混凝土的抗压强度和抗拉强度都得到了有效的提高。尽管具有高间距（27 cm）的样品中的纤维含量的效果在改善梁行为方面提供了显著的益处，但是随着间距减小（20 cm和16 cm），纤维的效果更加有限。理论计算与实验结果的近似度在91%以上。这表明标准中给出的分析计算可用于新的实验研究。
In parallel with the increase in vehicle sales worldwide, waste tires are becoming an increasing problem. The storage and disposal of these waste tires are critical environmental problems. Re-using these wastes in different areas instead of being disposed of is vital in preventing environmental pollution and creating new low-cost products. From this motivation, this paper investigates the properties of traditional reinforced-concrete beam with recycled steel wires (RSWT) obtained from the waste tires. RSWT were added to reinforced-concrete beam between 1% and 3% by weight with an increment of 1%. In total, 9 cubes, 12 cylinders and 12 reinforced-concrete beams were cast and tested to obtain the compressive, splitting tensile and flexural strengths, respectively. RSWT added to the concrete by 1%, 2% and 3% increased the compressive strength by 17.2%, 30.8% and 46.4%, respectively, compared to the reference concrete. In split tensile strength, 14.4%, 25.1% and 36.7% increases were observed, respectively. This showed that there was an effective increase in the compressive and tensile strength of concrete with the increase of fiber content. Although the effect of fiber content in samples with high stirrup spacing (27 cm) provides significant benefit in improving the beam behavior, the effect of fibers was more limited as the stirrup spacing decreased (20 cm and 16 cm). An approximation of over 91% was obtained between the analytical calculations and the experimental results. This shows that the analytical calculations given in the standards can be used for new experimental studies.