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…
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Gyroscopic Effects
Angular momentum is a vector and, therefore, has direction as well as magnitude. Torque affects both the direction and the magnitude…
Mechanics of Marine Machines 4 min read
Gyroscope
Gyroscope, device containing a rapidly spinning wheel or circulating beam of light that is used to detect the deviation of an object from its…
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…
Mechanics of Marine Machines 6 min read
Governor characteristics
In normal operation the turbine-generator is synchronised with and connected into an electrical power system, comprising other generating units and…
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…