Effect of rusting on steel reinforcement, Civil Engineering

Assignment Help:

Effect of rusting on steel reinforcement

Corrosion of steel reinforcement inside a concrete structure is undesirable in the subsequent ways: 

(i)  Presence of rust impairs the bond strength of deformed reinforcement since corrosion takes place at the raised ribs and fills the gap between ribs so evening out the original deformed shape. Basically the bond between concrete and deformed bars originates from the mechanical lock between raised ribs and concrete. Reduction of mechanical locks by corrosion results in the decline in bond strength with concrete.

(ii) Presence of corrosion decreases the effective cross sectional area of steel reinforcement. Therefore the available tensile capacity of steel reinforcement is reduced by a considerable reduction in the cross sectional area.

(iii) Corrosion products occupy about 3 times the original volume of steel from that it is formed. Such radical increase in volume generates significant bursting forces in vicinity of steel reinforcement. Subsequently cracks are formed along steel reinforcement when tensile strength of concrete is exceeded.


Related Discussions:- Effect of rusting on steel reinforcement

Edge piles take up more loads than central piles, Edge piles take up more l...

Edge piles take up more loads than central piles in rigid cap Because of the effect of interaction of individual piles, central piles tend to settle more than the edge piles w

Purpose of using capping layers in pavement construction, Q. Purpose of usi...

Q. Purpose of using capping layers in pavement construction? When California Bearing Ratio of subgrade is checked to be below a specific percentage (for example 5%), a capping

Factors that affect design facility of screw pumps, Question While sele...

Question While select screw pumps in polder scheme projects , what are factors that affect design facility of screw pumps? Answer Commonly used angles of inclination

Compute the thermal stresses in steel, Compute the thermal stresses in stee...

Compute the thermal stresses in steel: Consider the compound bar shown in below figure consisting of a steel bolt of diameter 18 mm, surrounded through a copper tube of outer

Water technology, Explain with lime soda process?cold lime soda process&hot...

Explain with lime soda process?cold lime soda process&hot lime soda process and it''s equations?

#transportation engineering sessional.., #how the result of DETERMINATION O...

#how the result of DETERMINATION OF THE 10 PERCENT FINES value can be interprited?

Surveying, sample problems with solutions for probable value

sample problems with solutions for probable value

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