Durability Performance and Mechanical Behavior of Pet Fiber Reinforced Recycled Fluid Concrete

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-01 DOI:10.2478/jaes-2024-0005

Meriem Bayah, F. Debieb, K. El-Hadj, M. Bentchikou

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引用次数: 0

Abstract

Many environmental problems can be attributed to various sources, such as the demolition of old buildings, waste from bricks, glass waste, among others, which are generated worldwide. This waste is converted and recycled as natural aggregate. On the other hand, a significant issue with concrete incorporating Recycled Concrete Aggregate (RCA) is its inferior properties compared to natural aggregate concrete. The subpar properties of RCA concrete can be enhanced by the addition of Fibers. This research examines the effects of polyethylene terephthalate fiber (RPETF) and recycled fine concrete aggregates (RFCA) on the mechanical properties and durability of self-compacting concrete (SCC). Three concrete families were created: one using RPETF alone, one using RFCA alone, and a third utilizing both RPETF and RFCA combined. The natural fine aggregates (NFA) were replaced with RFCA in increments of 25% from 0% to 100%. The results showed that the split tensile strengths of the mix of 100% RFCA and 1.2 % RPETF have improved over time by 28% compared to the mix with 100% RFCA alone. However, the inclusion of RPETF in SCC mixtures with varying amounts of RFCA resulted in reduced durability of the composite.

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宠物纤维增强再生流体混凝土的耐久性能和机械性能

许多环境问题可归咎于各种来源，如世界各地产生的旧建筑拆除、砖块废料、玻璃废料等。这些废料被转化为天然骨料并加以回收利用。另一方面，与天然骨料混凝土相比，含有再生混凝土骨料（RCA）的混凝土的一个重要问题是其性能较差。添加纤维可以增强 RCA 混凝土的劣质性能。本研究探讨了聚对苯二甲酸乙二醇酯纤维 (RPETF) 和再生细混凝土骨料 (RFCA) 对自密实混凝土 (SCC) 机械性能和耐久性的影响。我们创建了三个混凝土系列：一个系列仅使用 RPETF，一个系列仅使用 RFCA，第三个系列同时使用 RPETF 和 RFCA。天然细集料（NFA）被 RFCA 取代，取代率从 0% 到 100% 递增 25%。结果表明，100% RFCA 和 1.2 % RPETF 混合料的劈裂拉伸强度随着时间的推移比单独使用 100% RFCA 的混合料提高了 28%。不过，在含有不同数量 RFCA 的 SCC 混合物中加入 RPETF 会降低复合材料的耐久性。

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.