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

Significance of tailwater level in culverts, Significance of tailwater leve...

Significance of tailwater level in culverts Headwater level and tailwater level of culverts are significant parameters in hydraulic design. Headwater level can't be set too la

#titl, Two readings ie 1.64m and 0.73m were taken during leveling procedure...

Two readings ie 1.64m and 0.73m were taken during leveling procedure to define the slope of a centerline of a bridge at points A and B. If distance AB=50 m, find the slope of line

Determine the latitude and departure - transportation, Determine the latitu...

Determine the latitude and departure of each side of the closed traverse ABCDA.  Total the latitudes and departures. TIP: For Closed Traverse, Sum of Latitudes is Z

Water tretement, define scale and sludge and mention the scale and sludge f...

define scale and sludge and mention the scale and sludge forming substance and explain the prevention methods

Simple stresses and strains, Simple stresses and strains: In this simp...

Simple stresses and strains: In this simple stresses and strains you have learnt the concepts of stress, strain, elastic modulus and the primary concepts in application to ana

Process of lubrication of girder bearing, Q. Process of Lubrication of Gird...

Q. Process of Lubrication of Girder Bearing? Oiling and greasing of bearings is done to ensure that the bearings are well lubricated and working freely to permit expansion and

Curved prestressed bridge, In a curved prestressed bridge , how ought to t...

In a curved prestressed bridge , how ought to the guided bearings in piers of curved region be oriented with respect to a fixed bearing in abutment?

Univariate normal distribution, Univariate normal distribution: Let X ...

Univariate normal distribution: Let X = (X I , X 2 , ..., X n ,) has the multivariate normal distribution (5.26) of Section 5.4. Show that Y = a X ' follows a univariate norma

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