Experimental and numerical assessment of GFRP and synthetic fiber reinforced waste aggregate concrete members

IF 6 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Ain Shams Engineering Journal Pub Date : 2024-06-12 DOI:10.1016/j.asej.2024.102903

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引用次数: 0

Abstract

Improper disposal of plastic waste (P-waste) poses significant pollution and health risks to the environment. Additionally, steel rebar corrosion in concrete structures reduces their strength and serviceability. To address these issues, this study explores using glass fiber-reinforced polymer (GFRP) rebars and replacing natural coarse aggregates with P-waste aggregates for sustainable and eco-friendly construction. This work investigates the axial performance of polypropylene structural fiber-reinforced P-waste aggregate concrete (SFPC) compressive components having GFRP-reinforcement (GSFPC) under various loading conditions. For comparison, steel-reinforced SFPC compressive components (SSFPC) were also fabricated. Eighteen circular components with 1200 mm height and 300 mm diameter were tested and compared under different loading conditions. SSFPC components exhibited up to 21.9 % higher axial strength but up to 27.4 % lower ductility compared to GSFPC components. Eccentric loading similarly reduced axial strength in both GSFPC and SSFPC components. A 3-D finite element analysis (FEA) of GSFPC components was proposed using a modified damaged plastic model for SFPC which showed deviations of 2.3 % in axial strength and 7.7 % in equivalent axial shortening, demonstrating a good accuracy of the FEA model.

查看原文本刊更多论文

GFRP 和合成纤维加固废骨料混凝土构件的实验和数值评估

塑料垃圾（P-waste）的不当处置会对环境造成严重的污染和健康风险。此外，混凝土结构中的钢筋锈蚀会降低其强度和适用性。为了解决这些问题，本研究探讨了使用玻璃纤维增强聚合物（GFRP）钢筋，并用塑料废弃物骨料替代天然粗骨料，以实现可持续的生态友好型建筑。本研究探讨了聚丙烯结构纤维加固的废旧骨料混凝土（SFPC）抗压构件（GSFPC）在各种加载条件下的轴向性能。为了进行比较，还制作了钢筋增强 SFPC 受压构件（SSFPC）。在不同的加载条件下，对 18 个高度为 1200 毫米、直径为 300 毫米的圆形构件进行了测试和比较。与 GSFPC 组件相比，SSFPC 组件的轴向强度最多可提高 21.9%，但延展性最多可降低 27.4%。偏心加载同样降低了 GSFPC 和 SSFPC 组件的轴向强度。使用改进的 SFPC 损坏塑性模型对 GSFPC 组件进行了三维有限元分析（FEA），结果显示轴向强度偏差为 2.3%，等效轴向缩短率偏差为 7.7%，表明 FEA 模型具有良好的准确性。

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

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.