Recyclable thermoplastic FRP bars for reinforced concrete structures: Current status and future opportunities

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2024-07-30 DOI:10.1016/j.compstruct.2024.118438

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引用次数: 0

Abstract

Replacing steel reinforcing bars in reinforcing concrete (RC) structures with fibre-reinforced polymer (FRP) bars is an effective approach to avoid problems associated with corrosion of steel bars due to external chloride ions and humid environments. Recently, thermoplastic FRP bar has attracted much attention due to its advantages such as recyclability and on-site workability. In particular, bendable FRP threaded bars made of thermoplastic composites are very easy to be processed on-site due to their flexibility when heated. A number of studies have been conducted on recyclable thermoplastic FRP bars for reinforced concrete structures. This article provides a comprehensive overview of the benefits associated with thermoplastic FRP bars. The basic properties of thermoplastic FRP bars (including mechanical properties, durability properties and creep properties, etc.) are reviewed and summarized, and the comparisons between them and thermosetting FRP bars are conducted. Opportunities for further research on thermoplastic FRP bars in terms of material properties and structural engineering applications are finally identified.

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用于钢筋混凝土结构的可回收热塑性玻璃钢条：现状与未来机遇

用纤维增强聚合物（FRP）钢筋代替钢筋混凝土（RC）结构中的钢筋，是避免外部氯离子和潮湿环境对钢筋造成腐蚀的有效方法。最近，热塑性玻璃纤维增强塑料条由于其可回收性和现场加工性等优点而备受关注。特别是由热塑性复合材料制成的可弯曲玻璃钢螺纹杆，由于在加热时具有柔韧性，因此非常易于现场加工。针对用于钢筋混凝土结构的可回收热塑性玻璃钢条进行了大量研究。本文全面概述了热塑性玻璃钢条的相关优点。文章回顾并总结了热塑性玻璃钢条的基本特性（包括机械特性、耐久性能和蠕变特性等），并对其与热固性玻璃钢条进行了比较。最后从材料性能和结构工程应用方面指出了进一步研究热塑性玻璃钢条的机会。

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

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.