Concrete often considered as the most reliable and durable
material for any construction purpose has its own limitations and drawbacks. The
most common and fatal limitation of concrete as a construction material is
hidden in its structure i-e the interstial pores present in the basic structure
of concrete. Moreover, the interconnection of these pores made concrete
structure permeable and liable towards chemical attacks.
Even though a resilient material, concrete structures often
undergo severe corrosion and cracking via actions of water and different
chemicals such and sodium chloride. These cracks and opening has to be filled
in quickly in order to save structure from further detoriation and corrosion.
Different sealants are used to fill in the pore spaces in the concrete
structure. These sealants act as an isolating medium, forming a layer on the
boundary of concrete preventing its pores to be attacked by different
chemicals. Epoxy coatings are one of the many sealants that are used for
isolation and remedial material for any concrete structure that has undergone
severe corrosion. Epoxy coating is considered as the most vigilant and
resistant coating that forms a coating at the outer boundary of concrete
preventing it from any further attacks of water or other chemicals.
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