Experimental and Numerical Performance analysis of Alccofine-based crumb rubber concrete under Quasi-Static cyclic Load

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-01-17 DOI:10.1139/cjce-2023-0122

P. Haldar, Somnath Karmakar

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Abstract

Structure, during its design period, may face unpredictable dynamic loading: wind, earthquake, and blast. Unavoidably, loading rates impact the dynamic behaviours of structures. Besides, the infrastructure system is more susceptible to dynamic loading. Therefore, a study on the dynamic behaviour of concrete under Quasi-Static cyclic load is inevitable. Fortunately, the researchers explored that innovative materials could respond better to extreme dynamic loading. One of the serious issues is the demolition of rubber tyres, which may be solved by converting the same into crumb form as an innovative construction material. In the present study, experimental and Finite Element Method based numerical analysis shows a substantial improvement in fatigue, flexural, ductility, inelastic performance and energy dissipation capacity of the Alcofine-based crumb rubber concrete beam. These performances are observed experimentally under monotonic and Quasi-Static cyclic loads. The load-carrying capacity has also been predicted analytically; the results agree with the experimental and numerical ones.

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准静态循环载荷下铝氯芬基碎屑橡胶混凝土的实验和数值性能分析

结构在设计期间可能会面临不可预测的动态荷载：风、地震和爆炸。不可避免的是，荷载率会影响结构的动态行为。此外，基础设施系统更容易受到动态荷载的影响。因此，对混凝土在准静态循环荷载下的动态行为进行研究势在必行。幸运的是，研究人员发现创新材料可以更好地应对极端动态荷载。其中一个严重的问题是橡胶轮胎的拆卸问题，而将橡胶轮胎转化为橡胶屑形式作为一种创新建筑材料可以解决这一问题。在本研究中，基于实验和有限元法的数值分析表明，基于铝箔的橡胶屑混凝土梁在疲劳、弯曲、延展性、非弹性性能和能量耗散能力方面都有显著改善。这些性能是在单调和准静态循环载荷下通过实验观察到的。还对承载能力进行了分析预测；结果与实验和数值结果一致。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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