Preprint Article Version 1 This version is not peer-reviewed

Strength and Durability Study of Aramid Fibers in Retrofitting of Reinforced Concrete Structure

Version 1 : Received: 11 October 2018 / Approved: 11 October 2018 / Online: 11 October 2018 (13:03:57 CEST)

How to cite: Kandekar, S.; Talikoti, R. Strength and Durability Study of Aramid Fibers in Retrofitting of Reinforced Concrete Structure. Preprints 2018, 2018100237 (doi: 10.20944/preprints201810.0237.v1). Kandekar, S.; Talikoti, R. Strength and Durability Study of Aramid Fibers in Retrofitting of Reinforced Concrete Structure. Preprints 2018, 2018100237 (doi: 10.20944/preprints201810.0237.v1).

Abstract

Fiber reinforced polymer (FRP) is one of the important material used for strengthening and retrofitting of reinforced concrete structures. The commonly used fibers are glass, carbon and aramid fibers. Durability of structures can be extended by selecting appropriate method of strengthening. FRP wrapping is one of the easiest methods for repair, retrofit and maintenance of structural element. Deterioration of structures may be due to moisture content, salt water, or contact with alkali solutions. There is significant effect of permeability, rise in temperature, chemical attack, fatigue action, micro pores on members of structures. Using FRP additional strength can be gained by structural elements. This paper investigates durability of aramid fiber subjected to acid attack and temperature rise. Concrete cubes are prepared as specimens with double wrapping of aramid fibers. Diluted hydrochloric acid solution is used for immersion of specimen for curing period of 7, 30 and 70 days. In case of fire resistance test, such specimens are kept in hot air oven at a temperature of 2000C at different time intervals. The effect of aramid fiber wrapping on compressive strength and weight loss of specimen is studied.

Subject Areas

Fiber reinforced polymer; repair; retrofit; durability; aramid fiber; wrapping.

Readers' Comments and Ratings (1)

Comment 1
Received: 21 October 2018
The commenter has declared there is no conflict of interests.
Comment: One of the methods of contrast with earthquakes is seismic retrofitting of buildings.
Therefore, old and unsafe buildings should be strengthened by methods such as strengthening with FRP in accordance with ACI 4402R or retrofitted by classical methods such as FEMA 360.
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