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Fibers 2019, 7(2), 11;

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

Sandip Institute of Engineering and Management, Nashik 422213, MS, India
Late G N Sapkal College of Engineering, Nashik 422212, MS, India
Author to whom correspondence should be addressed.
Received: 11 October 2018 / Revised: 9 January 2019 / Accepted: 18 January 2019 / Published: 26 January 2019
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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. View Full-Text
Keywords: aramid fiber; durability; fiber-reinforced polymer; repair; retrofit; wrapping aramid fiber; durability; fiber-reinforced polymer; repair; retrofit; wrapping

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Talikoti, R.S.; Kandekar, S.B. Strength and Durability Study of Concrete Structures Using Aramid-Fiber-Reinforced Polymer. Fibers 2019, 7, 11.

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