A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members

Abstract

Since the nineteenth century, reinforced concrete was evolved as a crucial material for construction. This popular composite material is broadly used in different building typologies. However, the decaying of steel rebar due to corrosion is identified as a hindrance that can affect the quality of reinforced concrete structures. In reference to this, the glass fiber-reinforced polymer (GFRP) bar is essential because of corrosion-resistant properties. The researchers performed various tests and numerical analysis to know the response of GFRP-reinforced flexural members in shear and bending. Based on studies over the last decade, this study critically analyzes the response of flexural member reinforced using glass fiber-reinforced polymer (FRP) bars. Understanding the behavior of the FRP bar as the alternating reinforcing material will be aided by this review. Since the GFRP bar has high strength and no yield point, the conventional characterizations of ductility may not be applicable to determine whether GFRP-reinforced concrete components are ductile. Hence, a detailed study is needed to understand the behavior of such structures. This paper explores various properties of GFRP-reinforced beams to appreciate the applications of GFRP reinforcement in flexural members.

Effect of Rebar Harsh Storage Conditions on the Flexural Behavior of Glass FRP Concrete

“…With regard to research on bare GFRP rebars, a wealth of research is available in the literature, including a comprehensive review study on its suitability as reinforcement in flexural concrete members [4]. In an early study, Kim et al [5] determined that the tensile properties of the GFRP rods were significantly reduced under moisture, chloride, alkali, and freeze-thaw cycling conditions.…”

The role of multi-walled carbon nanotubes in enhancing the hydrolysis and thermal stability of PLA

“…In the field of materials science, polymers are the building blocks of several areas due to their versatility and ease of processing. When reinforced with various materials such as metal oxides 1 – 3 , fibers 4 – 6 or carbon nanotubes (CNTs) 7 , 8 , polymers gain in mechanical strength, thermal stability, and electrical conductivity, extending their utility in high-performance applications. Understanding the properties of materials and the cooperative relationship between polymers and reinforcements is decisive for designing advanced materials tailored to specific technological demands.…”