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Asked: October 16, 2017In: Construction Site Related

How to Make Reinforcement Bars Corrosion Resistant?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

How can the reinforcement bars be made corrosion resistant to be used for reinforced concrete construction?

  1. nikeetasharma

    nikeetasharma

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    nikeetasharma Guru
    Added an answer on September 8, 2020 at 11:08 pm

    CORROSION refers to an electrochemical reaction between a metal and its environment. Steel will readily rust unless it is coated. Corrosion occurs when steel reacts with chloride ions (Cl-), CO2 in the presence of a toxic environment. Thus, corrosion is uneven erosion/pitting of metal surface due toRead more

    CORROSION refers to an electrochemical reaction between a metal and its environment. Steel will readily rust unless it is coated. Corrosion occurs when steel reacts with chloride ions (Cl-), CO2 in the presence of a toxic environment. Thus, corrosion is uneven erosion/pitting of metal surface due to intense rusting and is also harmful to the service performance of rebar.

    There are many ways of reducing the risk of corrosion-related distress in concrete. The first defencing layer is concrete, which should be thick and dense. Also, the cracks should be minimized. The concrete cover should be used appropriately.

    An additional measure for corrosion-resistant is that corrosion inhibiting admixtures should be used. Epoxy coatings should be done on rebar, which acts as a physical barrier and also isolates the steel from oxygen, moisture, and chloride ions (which are the three primary elements needed for corrosion to occur).

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