Ecology, Environment and Conservation Paper

Vol 25, Issue 2 2019; Page No.(753-756)

EXPERIMENTAL STUDY ON ARAMID FIBER IN REHABILITATION AND STRENGTHENING OF STRUCTURES USING RECYCLED COARSE AGGREGATE

S. Gobhiga, R. Sundararajan and R. Anandaraj

Abstract

Conventional building materials have become dearer and an urgent necessity has arisen to find alternative materials for construction. As technology has developed, people prefer to adopt repair and rehabilitation techniques instead of demolishing existing structures for economic reason. Hence, the demand for the engineers on repair work has increased and research and development of repair materials has increased too. Even a lot of techniques are available for repair work, not all of them give the existing structures the required strength. The usage of different types of fiber reinforced polymer composites (FRPCs) for external strengthening in civil construction has become popular in recent days. There are two types of fibers in general: 1) carbon fiber and 2) glass fiber, which, with their enhanced functional performance, strengthen old structures. In this paper, the usage of the Aramid Fiber Reinforced Polymer (AFRP) sheets is reviewed. AFRP is a Heat-resistant and strong synthetic fiber, which is used in aerospace, military applications, ballistic composites, bicycle tires, marine cordage, marine hull reinforcement and as an asbestos substitute. Also the waste recycled coarse aggregate (RCA) is replaced in concrete with 15% as optimum value in order to avoid waste formation. The result of strengthening the beam using aramid fiber is compared with carbon fiber.

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