Experimental study on recycled steel fiber-reinforced concrete under repeated impact

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Reviews on Advanced Materials Science Pub Date : 2023-01-01 DOI:10.1515/rams-2022-0312

Yongtao Gao, Bin Wang, Qiang Xu, Changjiang Liu, D. Hui, W. Yuan, Haifeng Tang, Jian-jun Zhao

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引用次数: 1

Abstract

Abstract Recycled steel fiber comes from the waste produced by machining. Adding recycled steel fiber into concrete can significantly enhance the toughness of concrete. In order to study the impact toughness of recycled steel fiber-reinforced concrete, the drop weight repeated impact experiment method was used to study the performance of recycled steel fiber-reinforced concrete under repeated impact load. Four kinds of recycled steel fiber-reinforced concrete samples with different volume contents were designed and made, and the loading impact experiments under five working conditions were carried out. Taking the drop weight and drop height as changing parameters, the corresponding blow counts of the first crack and sample failure under the impact of the drop hammer are recorded, and the ductility coefficients of different samples are calculated. The results show that the impact resistance of the sample decreases significantly with the increase of the drop weight and drop height. With the increase of recycled steel fiber content, the impact toughness of the sample increases obviously. The impact toughness of recycled steel fiber-reinforced concrete under standard loading conditions is the best.

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重复冲击下再生钢纤维混凝土的试验研究

摘要再生钢纤维来源于机械加工产生的废料。在混凝土中加入再生钢纤维可显著提高混凝土的韧性。为了研究再生钢纤维混凝土的冲击韧性，采用落锤重复冲击试验方法，研究了再生钢纤维混凝土在重复冲击荷载作用下的性能。设计制作了4种不同体积含量的再生钢纤维混凝土试样，进行了5种工况下的加载冲击试验。以落锤质量和落锤高度为变化参数，记录在落锤冲击下试样的第一裂纹和破坏次数，计算不同试样的延性系数。结果表明，随着落锤重量和落锤高度的增加，试样的抗冲击性能显著降低。随着再生钢纤维含量的增加，试样的冲击韧性明显提高。再生钢纤维混凝土在标准荷载条件下的冲击韧性最好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Reviews on Advanced Materials Science 工程技术-材料科学：综合

CiteScore

5.10

自引率

11.10%

发文量

审稿时长

3.5 months

期刊介绍： Reviews on Advanced Materials Science is a fully peer-reviewed, open access, electronic journal that publishes significant, original and relevant works in the area of theoretical and experimental studies of advanced materials. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Reviews on Advanced Materials Science is listed inter alia by Clarivate Analytics (formerly Thomson Reuters) - Current Contents/Physical, Chemical, and Earth Sciences (CC/PC&ES), JCR and SCIE. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.