Review on characteristics of concrete reinforced with nylon fiber

Abstract

In tension, concrete is often weaker than in compression. To increased the tensile strength of concrete, fibers are added. Nylon fibers (NF) have shown promising results in previous research and tests since their presence has shown significant increases in concrete performance. The purpose of this research is to gather data from previous studies on NF-reinforced concrete (FRC). The key components of this review include concrete flowability, compressive strength, tensile strength, impact strength, rehabilitation, performance during irradiation, and fire resistance. In addition, the article examines the fracture behavior and failure patterns of nylon FRC. The results show that NF enhanced concrete performance, notably tensile capacity, owing to bridging mechanisms, but lowered concrete flow properties. However, the some researcher demonstrates that NF does not improved the compressive capacity significantly. Therefore, the study proposes more research to increase the compressive capacity of concrete by applying alternative treatments to NF or by employing secondary cementitious materials.

Physical, mechanical, and durability properties of concrete containing different waste synthetic fibers for green environment – A critical review

“…The reinforcement of polyethylene fiber in concrete significantly affects the workability, especially by increasing the fiber content can lead to more lessening of the workability of the concrete [ [56] , [57] , [58] , [59] , [60] ]. However, conventional concrete is able to cover some difficulties like high flow ability, pass-ability, and stability [ 61 ].…”

“…The employment of waste synthetic fiber in concrete significantly increases the tensile strength of concrete compared to the control mixture [ [87] , [88] , [89] , [90] ], and tensile strength mainly depends on the content of fiber, while the concrete properties like compressive strength and toughness are not beneficial by the higher proportion of the fiber contents [ 58 , 76 , 87 , 91 , 92 ]. Also, Mita et al [ 57 ] reported that nylon fiber improved the tensile strength of cement composite material at any sampled replacement and water-to-cement ratios.…”

“…Furthermore, the employment of waste synthetic fibers in concrete makes an isotropic uniform material, dense matrix, improves the microstructure of concrete, and controls the propagation of micro-cracks in concrete. This means the randomly distributed synthetic fibers in the concrete matrix arrest the propagation of cracks, consequently improves the tensile strength of the concrete structures [ 56 , 58 , 127 ].…”

Influence of Aspect Ratio of Nylon Fibers on the Mechanical Properties of Concrete

“…Therefore, NF is one of the possible solutions to characterize the fresh and mechanical properties of FRC. The nylon fiber is strong and has better elastic behavior when used in concrete [24]. Apart from concrete, the flexural strength and resistance to cracks initiation of cement mortar could be improved by adding nylon fiber.…”