Study on the stab resistance mechanism and performance of the carbon, glass and aramid fiber reinforced polymer and hybrid composites

Hybrid composites are made by combining natural and synthetic fibers with an effective matrix, which usually means they’ve received additional strengthening, such as epoxy, to create the additional material properties you can’t obtain on their own. To attain the desirable tensile modulus, compressive modulus, and so on, a fiber composite needs to be added to the FRP (Fiber Reinforced Polymer). Polymer matrix composites are light and cost-effective to manufacture, but they still friendly to the environment and have viable applications, which is why they are often used in various commercial applications. Unidirectional fibers and bidirectionally reinforced with epoxy (SikaDur is a composite medium) carbon fibers are two-way reinforced with unidirectional (use unidirectional) Before we developed test procedures for preparing the test specimens, the testing lab implemented the layup method according to ASTM standards. Ten separate stacking sequences were tested and four different intensity sequences were used in testing the compressive structures according to ASTM D15. The results of the study indicate that hybridization helps natural fiber-reinforced polymer composites to increase their mechanical properties We would use natural fibers rather than synthetic ones since the natural ones make comparable strength when hybridized with synthetic ones.

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Strength and Durability Study of Concrete Structures Using Aramid-Fiber-Reinforced Polymer

Fibers ◽

10.3390/fib7020011 ◽

2019 ◽

Vol 7 (2) ◽

pp. 11 ◽

Cited By ~ 2

Author(s):

Rajashekhar Talikoti ◽

Sachin Kandekar

Keyword(s):

Weight Loss ◽

Compressive Strength ◽

Concrete Structures ◽

Aramid Fiber ◽

Fiber Reinforced Polymer ◽

Structural Elements ◽

Fiber Reinforced ◽

Aramid Fibers ◽

Reinforced Polymer ◽

Concrete Cube

Fiber-reinforced polymer (FRP) is an important material used for strengthening and retrofitting of reinforced concrete structures. Commonly used fibers are glass, carbon, and aramid fibers. The durability of structures can be extended by selecting an appropriate method of strengthening. FRP wrapping is one of the easiest methods for repair, retrofit, and maintenance of structural elements. Deterioration of structures may be due to moisture content, salt water, or contact with alkali solutions. Using FRP, additional strength can be gained by structural elements. This paper investigates the durability of aramid-fiber-wrapped concrete cube specimens subjected to acid attack and temperature rise. The study focuses on the durability of aramid-fiber-wrapped concrete by considering the compressive strength parameter of the concrete cube. Concrete cubes are prepared as specimens with a double wrapping of aramid fibers. Diluted hydrochloric acid solution is used for immersion of specimens for curing periods of 7, 30, and 70 days. The aramid-fiber wrapping reduces weight loss by 40% and improves compressive strength by 140%. In a fire resistance test, the specimens were kept in a hot air oven at a temperature of 200 °C at different time intervals. Even after fire attack, weight loss in specimens reduced by 60%, with about 150% enhancement in compressive strength due to aramid fiber.

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Seismic Behavior of Substandard RC Columns Retrofitted with Embedded Aramid Fiber Reinforced Polymer (AFRP) Reinforcement

Polymers ◽

10.3390/polym7121527 ◽

2015 ◽

Vol 7 (12) ◽

pp. 2535-2557 ◽

Cited By ~ 12

Author(s):

Engin Seyhan ◽

Caglar Goksu ◽

Ahmet Uzunhasanoglu ◽

Alper Ilki

Keyword(s):

Seismic Behavior ◽

Aramid Fiber ◽

Fiber Reinforced Polymer ◽

Fiber Reinforced ◽

Rc Columns ◽

Reinforced Polymer

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