Key mechanism of defence by hot dip galvanizing, Civil Engineering

Assignment Help:

Question

What is key mechanism of defence by hot dip galvanizing?

Answer

Hot dip galvanizing protects steel or iron from corrosion by-

(i) It figures a metallic zinc and zinc-iron alloy covering on top of steel surface. This zinc coating reacts with humidity in atmosphere to from zinc salts that act as an insulating layer for steel or iron.

(ii) Zinc is higher than steel or iron in galvanic series and when these different metals with unlike electrical potential are in contact, zinc anode corrodes and offers sacrificial guard to steel or iron and hence steel or iron is protected from corrosion.

 


Related Discussions:- Key mechanism of defence by hot dip galvanizing

Lintel, Classification of lintels

Classification of lintels

Water piped scheme, how to use mood diagram to get f and other Re

how to use mood diagram to get f and other Re

Define in biref about the final prestress, Define in biref about the Final ...

Define in biref about the Final Prestress The stress which exists after all losses of prestress have occurred substantially is known as final prestress. This may be calculated

Surveying, define traverse.purpose of traverse, procedures of traverse, tak...

define traverse.purpose of traverse, procedures of traverse, taking linner measurment, types of traverse, convert the following quardnatal bearing to wcb. 1.OA= N15 deg10mins ''E,

Compression members, Compression Members: Compression members in steel...

Compression Members: Compression members in steel need special care in design. Steel possesses high strength in tension/compression; hence the sections are generally small com

Plot vertical displacement - cantilever beam, 1. The cantilever beam-like s...

1. The cantilever beam-like structure  shown below is modeled  using  a 2 x 10 mesh of rectangular four-node plane stress elements of equal size. Do the following and compare with

Shape factor, For a solid circular shaft transmitting torque, the shape fac...

For a solid circular shaft transmitting torque, the shape factor is

Explain the unconfined compression strength of the clay, A square group of ...

A square group of 9 piles was driven into soft clay extending to a large depth. The diameter and length of the piles were 30 cm and 9 m respectively. If the unconfined compression

State the term - transverse force on concrete, State the term - transverse ...

State the term - transverse force on concrete We know that in pre-stressed concrete, tendons are placed in a stretched condition and they always would try to regain their origi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd