alexa Abstract | Building Materials Corrosion Control by Fiber Reinforced Polymers
ISSN: 2168-9806

Journal of Powder Metallurgy & Mining
Open Access

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Research Article Open Access

Abstract

This paper highlights the beauty of fiber reinforced polymers (FRP) in the field of corrosion protection reinforced concrete structures (RCS). The fiber reinforced polymers develop anticorrosive barrier on the surface reinforced concrete and minimize the attack of corrosive pollutants. Corrosion is major problems with reinforced concrete. It occurs due to interaction of acids, alkalis, salts, pollutants, particulates, heat, light microorganisms and macro organisms and its own morphology. These substances create hostile environment for building materials of concrete and they produce chemical and corrosion reactions. The other factors also influence the corrosion of materials like acid rain, wind and weathering effects. The industrial effluents, flues gases and wastes provide major role in the field of concrete corrosion. These reactions change their mechanical, physical and chemical properties and tarnish their facial appearance. When building materials of concrete come in contact of corrosive environment, they can develop corrosion cell in presence of electrolyte. The corrosion reactions aggravate with rebar steel of concrete and their deterioration starts. There are several forms of corrosion occurs with iron bar of concrete such as galvanic, pitting, crevice, stress, intergranular, blistering, embrittlement, erosion, cavitations, observes inside and outside of materials. Building materials of concrete also show chemical reaction with corrosive substances and produce dissolving and swelling. Developed Nations expense 4% of their GNP for corrosion protection, parts replacement and repairing and maintenance work. The major sources of corrosive substances are various types of industries, mining, thermal power plants, petroleum refinery, burning of fossil fuel, chemical wastes, biological wastes, human wastes, household wastes, agricultural wastes, animal wastes, food grain wastes, hospital wastes, chimneys flues gases, industrial effluents. These sources release acids, alkalis, salts, organic compounds and metals as a form of effluents, oxides of carbon, oxides of nitrogen, oxides of sulphur, oxides of halogen, hydride of sulphur, hydride of nitrogen, volatile organic compounds as flues gases and different types of wastes. These pollutants substances contaminate water, air and soil. The essential components of RC Structures are sand, stones, cements, iron bars, bricks and water. The above mentioned corrosive substances generate hostile atmosphere for building materials. Due to this corrosive effect life of RC Structures are reduced and disintegration occurs inside and outside of them so their stability, durability and longevity become questionable. There are various techniques for corrosion protection of RC Structures. But these techniques did not give good result for their protection. Hence for this work Fiber Reinforced Polymers will be used to control corrosion of RC Structures.

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Author(s): Singh RK

Keywords

Building materials, Effluents, Pollutants, Flues gases, Wastes, Acid rain, Weather, Heat, Light, RC structures and Fiber reinforced polymers, Materials Chemistry, Materials Processing and Manufacturing, Metal Casting Technology, Metallic Materials, Colloid Chemistry, Composite Materials Fabrication, Extractive Metallurgy, Geological Materials, Hydrometallurgy, Metallurgical Engineering, Metallurgy, Mineral Processing, Nanomaterial, Surface Mining, Rock Mechanics, Coal Mining, Fracture Toughness, Compressive Strength

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