Engineering Chemistry 3 min read
What Are Paints
Paints are used to ensure protection of the buildings from harmful weather effects, including rain, heat, and winds, and also…
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Engineering Chemistry 1 min read
Does autogenous healing make the concrete pipe even stronger than original?
Autogenous healing is common in underground drainage pipes because of the presence of water on either side of the pipes.…
Engineering Chemistry 1 min read
What is the difference between carbonation and carbon dioxide attack?
For carbon dioxide attack, carbon dioxide dissolves in water to form a weak acid called carbonic acid. It would dissolve…
Engineering Chemistry 4 min read
Prevention of corrosion
Carbon dioxide and chloride present in the concrete are inert in the absence of the water and oxygen. Carbon dioxide…
Engineering Chemistry 1 min read
Chloride attack
The chloride ion attacks the passive layer although in this case (unlike carbonation) there is no overall drop in pH. Chlorides act…
Engineering Chemistry 1 min read
Carbonation
Carbonation is the result of the interaction of carbon dioxide gas in the atmosphere with the alkaline hydroxides in the…
Engineering Chemistry 3 min read
Prevention of corrosion in RCC by bacteria
Abstract Steel gets oxidise (corrosion) in the present of oxygen and water. Even present of oxygen in the concrete pore…
Engineering Chemistry 2 min read
What is the effect of rusting on steel reinforcement?
The corrosion of steel reinforcement inside a concrete structure is undesirable in the following ways: (i) The presence of rust…
Engineering Chemistry 1 min read
VARNISHES
Varnish is the solution of resins or resinous substances like amber, copal, shellac, gum resin etc. in solvents like oil, turpentile,…
Engineering Chemistry 1 min read
DISTEMPERS
Distempers are the cheaper variety of paints in which chalk is used as base and water is used as a carrier.The emulsifying…
Engineering Chemistry 3 min read
Properties of an Ideal Paint
1. It should be possible to apply easily and freely. 2. It should dry in reasonable time. 3. It should…
Engineering Chemistry 2 min read
PAINTS
Paints are applied on the surfaces of timber, metals and plastered surfaces as a protective layer and at the same…